Supermicro AS-2020A-8R, 2020A-8R User Manual

A+ SERVER 2020A-8R

NIC 1NIC 2

USER’S MANUAL

1.0

The information in this User’s Manual has been carefully reviewed and is believed to be accurate. The vendor assumes no responsibility for any inaccuracies that may be contained in this document, makes no commitment to update or to keep current the information in this manual, or to notify any person or organization of the updates. Please Note: For the most up-to-date version of this

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Printed in the United States of America

Preface

About This Manual

This manual is written for professional system integrators and PC technicians. It

provides information for the installation and use of the A+ Server 2020A-8R. Instal-

lation and maintainance should be performed by experienced technicians only.

The 2020A-8R is a high-end 2U rackmount server based on the SC823S-R500LP

server chassis and the H8DA8 serverboard, which supports single or dual AMD

Opteron™ 200 series processors and up to 32 GB of ECC registered DDR266/200

or 16 GB of ECC registered DDR400/333 SDRAM memory.

Preface

Manual Organization

Chapter 1: Introduction

The ﬁ rst chapter provides a checklist of the main components included with the

server system and describes the main features of the H8DA8 serverboard and the

SC823S-R500LP chassis, which make up the 2020A-8R.

Chapter 2: Server Installation

This chapter describes the steps necessary to install the 2020A-8R into a rack and

check out the server conﬁ guration prior to powering up the system. If your server

was ordered without processor and memory components, this chapter will refer you

to the appropriate sections of the manual for their installation.

Chapter 3: System Interface

Refer here for details on the system interface, which includes the functions and

information provided by the control panel on the chassis as well as other LEDs

located throughout the system.

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A+ Server 2020A-8R User's Manual

Chapter 4: System Safety

You should thoroughly familiarize yourself with this chapter for a general overview

of safety precautions that should be followed when installing and servicing the

2020A-8R.

Chapter 5: Advanced Serverboard Setup

Chapter 5 provides detailed information on the H8DA8 serverboard, including the

locations and functions of connectors, headers and jumpers. Refer to this chapter

when adding or removing processors or main memory and when reconﬁ guring the

serverboard.

Chapter 6: Advanced Chassis Setup

Refer to Chapter 6 for detailed information on the SC823S-R500LP 2U rackmount

server chassis. You should follow the procedures given in this chapter when install-

ing, removing or reconﬁ guring SCSI or peripheral drives and when replacing the

system power supply unit and cooling fans.

Chapter 7: BIOS

The BIOS chapter includes an introduction to BIOS and provides detailed informa-

tion on running the CMOS Setup Utility.

Appendix A: BIOS POST Messages

Appendix B: BIOS POST Codes

Appendix C: System Speciﬁ cations

Notes

Preface

A+ Server 2020A-8R User's Manual

Table of Contents

Preface

About This Manual ...................................................................................................... iii

Manual Organization ................................................................................................... iii

Chapter 1: Introduction

1-1 Overview ......................................................................................................... 1-1

1-2 Serverboard Features ..................................................................................... 1-2

1-3 Server Chassis Features ................................................................................ 1-4

Chapter 2: Server Installation

2-1 Overview ......................................................................................................... 2-1

2-2 Unpacking the System ................................................................................... 2-1

2-3 Preparing for Setup ........................................................................................ 2-1

Choosing a Setup Location .................................................................... 2-2

Rack Precautions .................................................................................... 2-2

Server Precautions ................................................................................. 2-2

Rack Mounting Considerations ............................................................... 2-3

2-4 Installing the System into a Rack ................................................................... 2-4

Identifying the Sections of the Rails ....................................................... 2-4

Installing the Chassis Rails ....................................................................... 2-5

Installing the Rack Rails ............................................................................ 2-6

Installing the Server into the Rack ............................................................ 2-6

Installing the Server into a Telco Rack ..................................................... 2-7

2-5 Checking the Serverboard Setup ................................................................... 2-8

2-6 Checking the Drive Bay Setup ....................................................................... 2-9

Chapter 3: System Interface

3-1 Overview ......................................................................................................... 3-1

3-2 Control Panel Buttons .................................................................................... 3-1

Reset ....................................................................................................... 3-1

Power ...................................................................................................... 3-1

3-3 Control Panel LEDs ........................................................................................ 3-2

Power Fail ................................................................................................ 3-2

Overheat/Fan Fail .................................................................................. 3-2

NIC1 .......................................................................................................... 3-2

NIC2 .......................................................................................................... 3-3

HDD ........................................................................................................ 3-3

Table of Contents

Power ...................................................................................................... 3-3

3-4 SCSI Drive Carrier LEDs ................................................................................ 3-3

Chapter 4: System Safety

4-1 Electrical Safety Precautions ........................................................................... 4-1

4-2 General Safety Precautions ............................................................................. 4-2

4-3 ESD Precautions ............................................................................................ 4-3

4-4 Operating Precautions ..................................................................................... 4-4

Chapter 5: Advanced Serverboard Setup

5-1 Handling the Serverboard ................................................................................ 5-1

5-2 Mounting the Serverboard into a Chassis ....................................................... 5-2

5-3 Processor and Heatsink Installation ................................................................ 5-2

5-4 Connecting Cables .......................................................................................... 5-5

Connecting Data Cables ........................................................................... 5-5

Connecting Power Cables ......................................................................... 5-5

Connecting the Control Panel ................................................................... 5-6

5-5 I/O Ports ........................................................................................................... 5-6

5-6 Installing Memory ............................................................................................. 5-7

5-7 Adding PCI Cards ............................................................................................ 5-9

5-8 Serverboard Details ....................................................................................... 5-10

H8DA8 Layout ....................................................................................... 5-10

H8DA8 Quick Reference ...................................................................... 5-11

5-9 Connector Deﬁ nitions .................................................................................... 5-12

Power Supply Connectors .................................................................... 5-12

Secondary Power Connector ................................................................ 5-12

NMI Button ............................................................................................ 5-12

Power LED ............................................................................................ 5-12

HDD LED ................................................................................................. 5-13

NIC1 LED .............................................................................................. 5-13

NIC2 LED .............................................................................................. 5-13

Overheat/Fan Fail LED ........................................................................... 5-13

Power Fail LED ....................................................................................... 5-13

Reset Button .......................................................................................... 5-14

Power Button ........................................................................................... 5-14

Universal Serial Bus Ports ...................................................................... 5-14

Chassis Intrusion ..................................................................................... 5-14

Serial Ports .............................................................................................. 5-15

Power Fail and Alarm Reset Header ...................................................... 5-15

Fan Headers ............................................................................................ 5-15

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A+ Server 2020A-8R User's Manual

JLAN 1/2 (Ethernet Ports) ........................................................................ 5-15

Extra USB Headers ................................................................................. 5-16

Power LED/Speaker ................................................................................ 5-16

ATX PS/2 Keyboard & Mouse Ports ....................................................... 5-16

Wake-On-LAN ......................................................................................... 5-17

Wake-On-Ring ......................................................................................... 5-17

SMB Power Header ................................................................................ 5-17

SMB Header ............................................................................................ 5-17

5-10 Jumper Settings ............................................................................................. 5-18

Explanation of Jumpers ........................................................................... 5-18

CMOS Clear ............................................................................................ 5-18

JLAN 1/2 Enable/Disable ........................................................................ 5-19

VGA Enable/Disable ................................................................................ 5-19

C to PCI Enable/Disable ....................................................................... 5-19

SCSI Controller Enable/Disable .............................................................. 5-19

SCSI Termination Enable/Disable ........................................................... 5-20

3rd Power Supply Fail Signal Enable/Disable ......................................... 5-20

Watch Dog Enable/Disable ..................................................................... 5-20

Onboard Speaker Enable/Disable ............................................................ 5-21

5-11 Onboard Indicators ........................................................................................ 5-21

JLAN1/JLAN2 LEDs ................................................................................ 5-21

+3.3V Power LED ................................................................................... 5-21

5-12 Floppy, IDE and SCSI Drive Connections ..................................................... 5-22

Floppy Connector .................................................................................... 5-22

IDE Connectors ....................................................................................... 5-23

SCSI Connectors ..................................................................................... 5-24

Chapter 6: Advanced Chassis Setup

6-1 Static-Sensitive Devices .................................................................................. 6-1

6-2 Control Panel ................................................................................................... 6-3

6-3 System Fans .................................................................................................... 6-3

System Fan Failure ................................................................................... 6-3

Replacing System Cooling Fans ............................................................... 6-3

6-4 Drive Bay Installation/Removal ........................................................................ 6-4

Accessing the Drive Bays ......................................................................... 6-4

SCSI Drive Installation .............................................................................. 6-5

Installing a Component in the 5.25" Drive Bay ......................................... 6-8

CD-ROM and Floppy Drive Installation ..................................................... 6-9

6-5 Power Supply ................................................................................................. 6-10

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Table of Contents

Power Supply Failure .............................................................................. 6-10

Removing/Replacing the Power Supply .................................................. 6-10

Chapter 7: BIOS

7-1 Introduction ....................................................................................................... 7-1

7-2 Main Setup ........................................................................................................ 7-2

7-3 Advanced Settings Menu .................................................................................. 7-2

7-4 PCI/PnP Menu ............................................................................................... 7-10

7-5 Boot Menu .................................................................................................... 7-11

7-6 Security Menu ................................................................................................ 7-13

7-7 Chipset Menu ................................................................................................. 7-14

7-8 Power Menu ................................................................................................... 7-18

7-9 Exit Menu ........................................................................................................ 7-19

Appendices:

Appendix A: BIOS Error Beep Codes ....................................................................... A-1

Appendix B: BIOS POST Codes ............................................................................... B-1

Appendix C: System Speciﬁ cations ......................................................................... C-1

A+ Server 2020A-8R User's Manual

Notes

Chapter 1: Introduction

Chapter 1

Introduction

1-1 Overview

The A+ Server 2020A-8R is a high-end dual processor, 2U rackmount server featur-

ing some of the most advanced technology currently available. The 2020A-8R is

comprised of two main subsystems: the SC823S-R500LP 2U rackmount chassis

and the H8DA8 dual processor serverboard. Please refer to our web site for infor-

mation on operating systems that have been certiﬁ ed for use with the 2020A-8R .

In addition to the mainboard and chassis, various hardware components may have

been included with your 2020A-8R, as listed below:

 One (1) 3.5" ﬂ oppy drive [FPD-PNSC-02 (beige) or FPD-PNSC-01 (black)]

 One (1) slim CD-ROM drive [CDM-TEAC-24(B)]

 Four (4) 8-cm hot-swap chassis fans (FAN-0070)

 One (1) air shroud for 1U chassis (CSE-PT83)

 Two (2) CPU backplates (BKT-0004)

 Two (2) heatsink retention modules with four (4) screws (BKT-0005)

 Two (2) CPU passive heatsinks, optional (SKN-P0013)

 SCSI Accessories:

One (1) SCA SAF-TE compliant SCSI backplane (CSE-SCA-822S)

One (1) 9" two-drop Ultra320 SCSI cable (CBL-033-U320)

Six (6) SCA 1-inch high SCSI drive carriers [CSE-PT17(B)]

 Rackmount hardware with screws [CSE-PT25]

 One (1) CD containing drivers and utilities

 A+ Server 2020A-8R User's Manual

Note: a "B" at the end of a part number indicates the item is available in black.

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A+ Server 2020A-8R User's Manual

1-2 Serverboard Features

At the heart of the 2020A-8R lies the H8DA8, a dual processor serverboard

designed to provide maximum performance. Below are the main features of the

H8DA8. See Figure 1-1 for a system block diagram of the chipset.

Processors

The H8DA8 supports single or dual 940-pin AMD OpteronTM processors. Please

refer to our web site for a complete listing of supported processors.

Memory

The H8DA8 has eight 184-pin DIMM slots that can support up to 32 GB of regis-

tered ECC DDR266/200 or up to 16 GB of registered ECC DDR400/333 SDRAM.

(The maximum memory supported is halved if only one processor is installed.)

Memory in supported in both interleaved and non-interleaved conﬁ gurations. See

Section 5-6 for details.

Onboard SCSI

Onboard SCSI is provided with Adaptec's AIC-7902 SCSI controller chip, which

supports dual-channel, Ultra320 SCSI at at maximum throughput of 320 MB/sec

for each channel. The H8DA8 provides two LVD Ultra320 SCSI ports. The SCSI

drives are hot-swappable units.

Note: The operating system you use must have RAID support to enable the hot-

swap capability and RAID function of the SCSI drives.

PCI Expansion Slots

The H8DA8 has six PCI expansion slots, which includes two 64-bit 133 MHz PCI-X

slots, two 64-bit 66 MHz PCI-X slots and two 32-bit 33 MHz PCI slots. (The 66 MHz

PCI-X #3 slot supports Zero Channel RAID.) An IPMI slot is also avaliable (in slot

#7), which supports a low proﬁ le IPMI card.

1-2

Chapter 1: Introduction

ATI Gra phics Contro ller

An ATI video controller based on the Rage XL 8 MB graphics chip is integrated

onboard the H8DA8. Rage XL fully supports sideband addressing and AGP

texturing. This onboard graphics package can provide a bandwidth of up to 512

MB/sec over a 32-bit graphics memory bus.

Onboard Controllers/Ports

The H8DA8 provides one ﬂ oppy drive controller and two onboard IDE control-

lers, which support up to four hard drives or ATAPI devices. Backpanel I/O ports

include one COM port, two USB ports, PS/2 mouse and keyboard ports and a

video (monitor) port. A Broadcom BCM5704 Ethernet controller is also included

to support two Gb LAN ports.

Other Features

Other onboard features are included to promote system health. These include

various voltage monitors, CPU temperature sensors, fan speed sensors, a chas-

sis intrusion header, auto-switching voltage regulators, chassis and CPU overheat

sensors, virus protection and BIOS rescue.

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A+ Server 2020A-8R User's Manual

1-3 Server Chassis Features

The SC823S-R500LP is a 2U chassis that features six hot-swap SCSI drive bays,

a slim CD-ROM drive, a 3.5" ﬂ oppy drive and a revolutionary cooling design that

can keep today's most powerful processors running well below their temperature

thresholds. The following is a general outline of the main features of the SC823S-

R500LP chassis.

System Power

The SC823S-R500LP features a redundant 500W power supply that consists of two

separate power supply modules. Under normal operation, both modules share the

load and run continuously. If one fails, the other module will pick up the load and

keep the system running without interruption. A failed power supply module will

illuminate the power fail LED. The power supply modules are hot-swappable, so

you don't have to power down the system to replace a module.

SCSI Subsystem

The SCSI subsystem supports four 80-pin SCA Ultra320 SCSI hard drives. (Any

standard 1" drives are supported. SCA = Single Connection Attachment.) The SCSI

drives are connected to an SCA backplane that provides power, bus termination and

conﬁ guration settings. The SCSI drives are also hot-swap units

Note: The operating system you use must have RAID support to enable the hot-

swap capability of the SCSI drives.

Control Panel

The SC823S-R500LP's control panel provides you with system monitoring and

control. LEDs indicate system power, HDD activity, network activity, system over-

heat and power supply failure. A main power button and a system reset button

are also included.

I/O Backplane

The SC823S-R500LP is an ATX form factor chassis that is designed to be used

in a 2U rackmount conﬁ guration. The I/O backplane provides seven low-proﬁ le

motherboard expansion slots (with the use of special riser cards), one COM port,

a parallel port, a VGA port, four USB ports, PS/2 mouse and keyboard ports and

two gigabit Ethernet ports.

1-4

Chapter 1: Introduction

Cooling System

The SC823S-R500LP chassis has an innovative cooling design that includes four

8-cm hot-plug system cooling fans located in the middle section of the chassis. An

air shroud channels the air ﬂ ow from these fans to efﬁ ciently cool the processor area

of the system. The power supply module(s) also includes a cooling fan.

Figure 1-1. AMD 8131/8111TM Chipset:

System Block Diagram

Note: This is a general block diagram. Please see Chapter 5 for details.

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A+ Server 2020A-8R User's Manual

Notes

1-6

Chapter 2: Server Installation

Chapter 2

Server Installation

2-1 Overview

This chapter provides a quick setup checklist to get your 2020A-8R up and run-

ning. Following these steps in the order given should enable you to have the

system operational within a minimum amount of time. This quick setup assumes

that your system has come to you with the processors and memory preinstalled. If

your system is not already fully integrated with a serverboard, processors, system

memory etc., please turn to the chapter or section noted in each step for details on

installing speciﬁ c components.

2-2 Unpacking the System

You should inspect the box the 2020A-8R was shipped in and note if it was dam-

aged in any way. If the server itself shows damage you should ﬁ le a damage claim

with the carrier who delivered it.

Decide on a suitable location for the rack unit that will hold the 2020A-8R. It should

be situated in a clean, dust-free area that is well ventilated. Avoid areas where

heat, electrical noise and electromagnetic ﬁ elds are generated. You will also need

it placed near a grounded power outlet. Read the Rack and Server Precautions in

the next section.

2-3 Preparing for Setup

The box the 2020A-8R was shipped in should include two sets of rail assemblies,

two rail mounting brackets and the mounting screws you will need to install the

system into the rack. Follow the steps in the order given to complete the installation

process in a minimum amount of time. Please read this section in its entirety before

you begin the installation procedure outlined in the sections that follow.

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A+ Server 2020A-8R User's Manual

Choosing a Setup Location

- Leave enough clearance in front of the rack to enable you to open the front door

completely (~25 inches).

- Leave approximately 30 inches of clearance in the back of the rack to allow for

sufﬁ cient airﬂ ow and ease in servicing.

- This product is for installation only in a Restricted Access Location (dedicated

equipment rooms, service closets and the like).

Warnings and Precautions!

Rack Precautions

- Ensure that the leveling jacks on the bottom of the rack are fully extended to the

ﬂ oor with the full weight of the rack resting on them.

- In single rack installation, stabilizers should be attached to the rack.

- In multiple rack installations, the racks should be coupled together.

- Always make sure the rack is stable before extending a component from the

rack.

- You should extend only one component at a time - extending two or more simul-

taneously may cause the rack to become unstable.

Server Precautions

- Review the electrical and general safety precautions in Chapter 4.

- Determine the placement of each component in the rack before you install the

rails.

- Install the heaviest server components on the bottom of the rack ﬁ rst, and then

work up.

- Use a regulating uninterruptible power supply (UPS) to protect the server from

power surges, voltage spikes and to keep your system operating in case of a power

failure.

- Allow the hot plug SCSI drives and power supply units to cool before touching

them.

Always keep the rack's front door and all panels and components on the servers

closed when not servicing to maintain proper cooling.

2-2

Chapter 2: Server Installation

Rack Mounting Considerations

Ambient Operating Temperature

If installed in a closed or multi-unit rack assembly, the ambient operating tempera-

ture of the rack environment may be greater than the ambient temperature of the

room. Therefore, consideration should be given to installing the equipment in an

environment compatible with the manufacturer’s maximum rated ambient tempera-

ture (Tmra).

Reduced Airﬂ ow

Equipment should be mounted into a rack so that the amount of airﬂ ow required

for safe operation is not compromised.

Mechanical Loading

Equipment should be mounted into a rack so that a hazardous condition does not

arise due to uneven mechanical loading.

Circuit Overloading

Consideration should be given to the connection of the equipment to the power

supply circuitry and the effect that any possible overloading of circuits might have

on overcurrent protection and power supply wiring. Appropriate consideration of

equipment nameplate ratings should be used when addressing this concern.

Reliable Ground

A reliable ground must be maintained at all times. To ensure this, the rack itself

should be grounded. Particular attention should be given to power supply connec-

tions other than the direct connections to the branch circuit (i.e. the use of power

strips, etc.).

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A+ Server 2020A-8R User's Manual

2-4 Installing the System into a Rack

This section provides information on installing the 2020A-8R into a rack unit. If the

2020A-8R has already been mounted into a rack, you can skip ahead to Sections

2-5 and 2-6.

There are a variety of rack units on the market, which may mean the assembly

procedure will differ slightly. The following is a guideline for installing the 2020A-

8R into a rack with the rack rails provided. You should also refer to the installation

instructions that came with the rack unit you are using.

Identifying the Sections of the Rack Rails

You should have received two rack rail assemblies with the 2020A-8R. Each of

these assemblies consist of two sections: an inner ﬁ xed chassis rail that secures

to the chassis (A) and an outer ﬁ xed rack rail that secures directly to the rack itself

(B). All screws and hardware mentioned in the installation steps should be included

in the hardware kit.

To remove the ﬁ xed chassis rail (A), pull it out as far as possible - you should hear

a "click" sound as a locking tab emerges from inside the rail assembly and locks

the inner rail. Then depress the locking tab to pull the inner rail completely out.

Do this for both the left and right side rack rail assemblies.

Figure 2-1. Identifying the Sections of the Rack Rails

Locking Tab

2-4

Chapter 2: Server Installation

Installing the Chassis Rails

Position the ﬁ xed chassis rail sections you just removed along the side of the

2020A-8R making sure the screw holes line up. Note that these two rails are left/

right speciﬁ c. Screw the rail securely to the side of the chassis (see Figure 2-2).

Repeat this procedure for the other rail on the other side of the chassis. You will

also need to attach the rail brackets when installng into a telco rack.

Locking Tabs: As mentioned, both chassis rails have a locking tab, which serves

two functions. The ﬁ rst is to lock the server into place when installed and pushed

fully into the rack, which is its normal position. Secondly, these tabs also lock the

server in place when fully extended from the rack. This prevents the server from

coming completely out of the rack when you pull it out for servicing.

Figure 2-2. Installing Chassis Rails

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A+ Server 2020A-8R User's Manual

Installing the Rack Rails:

Determine where you want to place the 2020A-8R in the rack (see Rack and Server

Precautions in Section 2-3). Position the ﬁ xed rack rail/sliding rail guide assemblies

at the desired location in the rack, keeping the sliding rail guide facing the inside

of the rack. Screw the assembly securely to the rack using the brackets provided.

Attach the other assembly to the other side of the rack, making sure both are at the

exact same height and with the rail guides facing inward (see Figure 2-3).

Figure 2-3. Assembling the Rack Rails

Installing the Server into the Rack

You should now have rails attached to both the chassis and the rack unit. The next

step is to install the server into the rack. Do this by lining up the rear of the chas-

sis rails with the front of the rack rails. Slide the chassis rails into the rack rails,

keeping the pressure even on both sides (you may have to depress the locking

tabs when inserting). See Figure 2-4.

When the server has been pushed completely into the rack, you should hear the

locking tabs "click". Finish by inserting and tightening the thumbscrews that hold

the front of the server to the rack.

2-6

Chapter 2: Server Installation

Figure 2-4. Installing the Server into a Rack

Installing the Server into a Telco Rack

If you are installing the 2020A-8R into a Telco type rack, follow the directions given

on the previous pages for rack installation. The only difference in the installation

procedure will be the positioning of the rack brackets to the rack. They should be

spaced apart just enough to accommodate the width of the telco rack.

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A+ Server 2020A-8R User's Manual

2-5 Checking the Serverboard Setup

After you install the 2020A-8R in the rack, you will need to open the unit to make sure

the serverboard is properly installed and all the connections have been made.

1. Accessing the inside of the System (see Figure 2-5):

First, release the retention screws that secure the unit to the rack. Grasp the two

handles on either side and pull the unit straight out until it locks (you will hear a

"click"). Next, depress the two buttons on the top of the chassis to release the top

cover. You can then lift the top cover from the chassis to gain full access to the

inside of the server.

2. Check the CPUs (processors):

You may have one or two processors already installed into the serverboard. Each

processor needs its own heatsink. See Chapter 5 for instructions on processor and

heatsink installation.

3. Check the system memory:

Your 2020A-8R server system may have come with system memory already in-

stalled. Make sure all DIMMs are fully seated in their slots. For details on adding

system memory, refer to Chapter 5.

4. Installing add-on cards:

If desired, you can install add-on cards to the system. See Chapter 5 for details

on installing PCI add-on cards.

5. Check all cable connections and airﬂ ow:

Make sure all power and data cables are properly connected and not blocking the

chassis airﬂ ow. Also make sure that no cables are positioned in front of the fans.

See Chapter 5 for details on cable connections.

2-8

Chapter 2: Server Installation

Figure 2-5. Accessing the Inside of the System

2-6 Checking the Drive Bay Setup

Next, you should check to make sure the peripheral drives and the SCSI drives

and SCA backplane have been properly installed and all connections have been

made.

1. Accessing the drive bays:

All drives are accessable from the front of the server. For servicing the CD-ROM

and ﬂ oppy drives, you will need to remove the top chassis cover. The SCSI disk

drives can be installed and removed from the front of the chassis without removing

the top chassis cover.

2. CD-ROM and ﬂ oppy disk drives:

A slim CD-ROM and a ﬂ oppy drive should be preinstalled in your server. Refer to

Chapter 6 if you need to reinstall a CD-ROM and/or ﬂ oppy disk drive to the sys-

tem.

3. Check the SCSI disk drives:

Depending upon your system's conﬁ guration, your system may have one or more

drives already installed. If you need to install SCSI drives, please refer to Chapter

2-9

A+ Server 2020A-8R User's Manual

4. Check the airﬂ ow:

Airﬂ ow is provided by four 8-cm center chassis cooling fans. An air shroud is also

included in the system to maximize airﬂ ow. The system component layout was

carefully designed to direct sufﬁ cient cooling airﬂ ow to the components that gener-

ate the most heat. Note that all power and data cables have been routed in such

a way that they do not block the airﬂ ow generated by the fans.

5. Supplying power to the system:

The last thing you must do is to provide input power to the system. Plug the power

cords from the power supply units into a high-quality power strip that offers protec-

tion from electrical noise and power surges. It is recommended that you use an

uninterruptible power supply (UPS).

2-10

Chapter 3: System Interface

Chapter 3

System Interface

3-1 Overview

There are several LEDs on the control panel as well as others on the SCSI drive

carriers to keep you constantly informed of the overall status of the system as well

as the activity and health of speciﬁ c components. There are also two buttons on

the chassis control panel.

3-2 Control Panel Buttons

The two push-buttons located on the front of the chassis are (in order from left to

right) a reset button and a power on/off button.

 RESET:

 POWER: This is the main power button, which is used to apply or turn off

the main system power. Turning off system power with this button removes the

main power but keeps standby power supplied to the system.

Use the reset button to reboot the system.

3-1

A+ Server 2020A-8R User's Manual

3-3 Control Panel LEDs

The control panel located on the front of the chassis has ﬁ ve LEDs. These LEDs

provide you with critical information related to different parts of the system. This

section explains what each LED indicates when illuminated and any corrective ac-

tion you may need to take.

 Power Fail: Indicates a power supply module has failed. The second power

supply module will take the load and keep the system running but the failed module

will need to be replaced. Refer to Chapter 6 for details on replacing the power

supply. This LED should be off when the system is operating normally.

 Overheat/Fan Fail: When this LED ﬂ ashes, it indicates a fan failure. When

on continuously it indicates an overheat condition, which may be caused by cables

obstructing the airﬂ ow in the system or the ambient room temperature being too

warm. Check the routing of the cables and make sure all fans are present and

operating normally. You should also check to make sure that the chassis covers

are installed. Finally, verify that the heatsinks are installed properly (see Chapter

5). This LED will remain ﬂ ashing or on as long as the indicated condition exists.

 NIC1: Indicates network activity on the LAN1 port when ﬂ ashing.

3-2

Chapter 3: System Interface

 NIC2: Indicates network activity on the LAN2 port when ﬂ ashing.

 HDD: Indicates IDE channel activity. On the 2020A-8R, this LED indicates

SCSI and CD-ROM drive activity when ﬂ ashing.

 Power:

This LED should normally be illuminated when the system is operating.

Indicates power is being supplied to the system's power supply units.

3-4 SCSI Drive Carrier LEDs

A SCSI drive carrier has two LEDs.

 Green:

rier indicates drive activity. A connection to the SCSI SCA backplane enables this

LED to blink on and off when that particular drive is being accessed.

 Red: A SAF-TE compliant backplane is needed to activate the red LED, which

indicates a drive failure. (A SAF-TE compliant SCSI backplane is standard on the

2020A-8R.) If one of the SCSI drives fail, you should be notiﬁ ed by your system

management software. Please refer to Chapter 6 for instructions on replacing failed

SCSI drives.

When illuminated, the green LED on the front of the SCSI drive car-

3-3

A+ Server 2020A-8R User's Manual

Notes

3-4

Chapter 4: System Safety

Chapter 4

System Safety

4-1 Electrical Safety Precautions

Basic electrical safety precautions should be followed to protect yourself from

harm and the 2020A-8R from damage:

 Be aware of the locations of the power on/off switch on the chassis as well as

the room's emergency power-off switch, disconnection switch or electrical

outlet. If an electrical accident occurs, you can then quickly remove power

from the system.

 Do not work alone when working with high voltage components.

 Power should always be disconnected from the system when removing or

installing main system components, such as the serverboard, memory

modules and the CD-ROM and ﬂ oppy drives (not necessary for SCSI drives).

When disconnecting power, you should ﬁ rst power down the system with the

operating system and then unplug the power cords from all the power supply

modules in the system.

 When working around exposed electrical circuits, another person who is

familiar with the power-off controls should be nearby to switch off the power

if necessary.

 Use only one hand when working with powered-on electrical equipment. This

is to avoid making a complete circuit, which will cause electrical shock.

Use extreme caution when using metal tools, which can easily damage any

electrical components or circuit boards they come into contact with.

 Do not use mats designed to decrease electrostatic discharge as protection

from electrical shock. Instead, use rubber mats that have been speciﬁ cally

designed as electrical insulators.

 The power supply power cord must include a grounding plug and must be

plugged into grounded electrical outlets.

4-1

A+ Server 2020A-8R User's Manual

 Serverboard Battery: CAUTION - There is a danger of explosion if the onboard

battery is installed upside down, which will reverse its polarities. This battery

must be replaced only with the same or an equivalent type recommended by

the manufacturer. Dispose of used batteries according to the manufacturer's

instructions. See Figure 4-1.

 CD-ROM Laser: CAUTION - this server may have come equipped with a CD-

ROM drive. To prevent direct exposure to the laser beam and hazardous

radiation exposure, do not open the enclosure or use the unit in any

unconventional way.

4-2 General Safety Precautions

Follow these rules to ensure general safety:

 Keep the area around the 2020A-8R clean and free of clutter.

 The 2020A-8R weighs approximately 57 lbs (25.6 kg) when fully loaded. When

lifting the system, two people at either end should lift slowly with their feet

spread out to distribute the weight. Always keep your back straight and lift

with your legs.

 Place the chassis top cover and any system components that have been

removed away from the system or on a table so that they won't accidentally

be stepped on.

 While working on the system, do not wear loose clothing such as neckties and

unbuttoned shirt sleeves, which can come into contact with electrical circuits

or be pulled into a cooling fan.

 Remove any jewelry or metal objects from your body, which are excellent metal

conductors that can create short circuits and harm you if they come into

contact with printed circuit boards or areas where power is present.

 After accessing the inside of the system, close the system back up and secure

it to the rack unit with the retention screws after ensuring that all connections

have been made.

4-2

4-3 ESD Precautions

Electrostatic discharge (ESD) is generated by two objects with different electrical

charges coming into contact with each other. An electrical discharge is created to

neutralize this difference, which can damage electronic com ponents and printed

circuit boards. The following measures are generally sufﬁ cient to neutralize this

difference before contact is made to protect your equipment from ESD:

 Use a grounded wrist strap designed to prevent static discharge.

 Keep all components and printed circuit boards (PCBs) in their antistatic

bags until ready for use.

Chapter 4: System Safety

 Touch a grounded metal object before removing any board from its antistatic

bag.

 Do not let components or PCBs come into contact with your clothing, which

may retain a charge even if you are wearing a wrist strap.

 Handle a board by its edges only; do not touch its components, peripheral

chips, memory modules or contacts.

 When handling chips or modules, avoid touching their pins.

 Put the serverboard and peripherals back into their antistatic bags when

not in use.

 For grounding purposes, make sure your computer chassis provides excellent

conductivity between the power supply, the case, the mounting fasteners and

the serverboard.

4-3

A+ Server 2020A-8R User's Manual

4-4 Operating Precautions

Care must be taken to assure that the chassis cover is in place when the

2020A-8R is operating to ensure proper cooling. Out of warranty damage to

the 2020A-8R system can occur if this practice is not strictly followed.

Figure 4-1. Installing the Onboard Battery

4-4

Chapter 5: Advanced Serverboard Setup

Chapter 5

Advanced Serverboard Setup

This chapter covers the steps required to install processors and heatsinks to

the H8DA8 serverboard, connect the data and power cables and install add-on

cards. All serverboard jumpers and connections are described and a layout and

quick reference chart are included in this chapter. Remember to close the chas-

sis completely when you have ﬁ nished working on the serverboard to protect and

cool the system sufﬁ ciently.

5-1 Handling the Serverboard

Static electrical discharge can damage electronic com ponents. To prevent dam-

age to printed circuit boards, it is important to handle them very carefully (see

Chapter 4). Also note that the size and weight of the serverboard can cause

it to bend if handled improperly, which may result in damage. To prevent the

serverboard from bending, keep one hand under the center of the board to sup-

port it when handling. The following measures are generally sufﬁ cient to protect

your equipment from static discharge.

Precautions

• Use a grounded wrist strap designed to prevent static discharge.

• Touch a grounded metal object before removing any board from its antistatic

bag.

• Handle a board by its edges only; do not touch its components, peripheral chips,

memory modules or gold contacts.

• When handling chips or modules, avoid touching their pins.

• Put the serverboard, add-on cards and peripherals back into their antistatic

bags when not in use.

Unpacking

The serverboard is shipped in antistatic packaging to avoid static damage. When

unpacking the board, make sure the person handling it is static protected.

5-1

A+ Server 2020A-8R User's Manual

5-2 Mounting the Serverboard into a Chassis

All serverboards and motherboards have standard mounting holes to ﬁ t different

types of chassis. Make sure that the locations of all the mounting holes for both

the serverboard and the chassis match. Although a chassis may have both plastic

and metal mounting fasteners, metal ones are highly recommended because they

ground the serverboard to the chassis. Make sure that the metal standoffs click in

or are screwed in tightly.

1. Check the compatibility of the serverboard ports and the I/O shield

The H8DA8 serverboard requires a chassis that can support extended ATX boards

of 12" x 13.05" in size, such as the SC813S-500C. Make sure that the I/O ports

on the serverboard align with their respective holes in the I/O shield at the rear of

the chassis.

2. Mounting the serverboard onto the mainboard tray in the chassis

Carefully mount the serverboard onto the mainboard tray by aligning the serverboard

mounting holes with the raised metal standoffs in the tray. Insert screws into all

the mounting holes in the serverboard that line up with the standoffs. Then use a

screwdriver to secure the serverboard to the mainboard tray - tighten until just snug

(if too tight you might strip the threads). Metal screws provide an electrical contact

to the serverboard ground to provide a continuous ground for the system.

5-3 Processor and Heatsink Installation

Exercise extreme caution when handling and installing the proces-

sor. Always connect the power cord last and always remove it be-

fore adding, removing or changing any hardware components.

Installing the Processor (install to the CPU#1 socket ﬁ rst)

1. Lift the lever on CPU socket #1 until

it points straight up.

5-2

2. Use your thumb and your index ﬁ n-

ger to hold the CPU. Locate pin 1 on

the CPU socket and pin 1 on the CPU.

Both are marked with a triangle.

3. Align pin 1 of the CPU with pin 1

of the socket. Once aligned, carefully

place the CPU into the socket. Do not

drop the CPU on the socket, move the

CPU horizontally or vertically or rub the

CPU against the socket or against any

pins of the socket, which may damage

the CPU and/or the socket.

Chapter 5: Advanced Serverboard Setup

Triangles

4. With the CPU inserted into the

socket, inspect the four corners of the

CPU to make sure that it is properly

installed and ﬂ ush with the socket.

5. Gently press the CPU socket lever

down until it locks in the plastic tab.

For a dual-processor system, repeat

these steps to install another CPU into

the CPU#2 socket.

Note: if using a single processor, only

CPU 1 DIMM slots are addressable.

5-3

A+ Server 2020A-8R User's Manual

Installing the Heatsink

We recommend the use of active type heatsinks with the 2020A-8R server sys-

tem). When using active heatsinks with the system, use the Fan7 header for the

CPU1 fan and the Fan8 header for the CPU2 fan due to fan monitoring and wiring

considerations.

You may be using the manufacturer's optional heatsinks (part number SNK-P0013)

or those from a third party. To install the heatsinks, please follow the installation

instructions included with your heatsink package.

Figure 5-1. Installing the Heatsinks

5-4

Chapter 5: Advanced Serverboard Setup

5-4 Connecting Cables

Now that the processors are installed, the next step is to connect the cables to

the serverboard. These include the data (ribbon) cables for the peripherals and

control panel and the power cables.

Connecting Data Cables

The ribbon cables used to transfer data from the peripheral devices have been

carefully routed in preconﬁ gured systems to prevent them from blocking the ﬂ ow

of cooling air that moves through the system from front to back. If you need to

disconnect any of these cables, you should take care to reroute them as they

were originally after reconnecting them (make sure the red wires connect to the

pin 1 locations). If you are conﬁ guring the system, keep the airﬂ ow in mind when

routing the cables. The following data cables (with their serverboard connector

locations noted) should be connected. See the serverboard layout diagram in this

chapter for connector locations.

 CD-ROM cable (JIDE#2)

 Floppy Drive cable (JFDD1)

 SCSI cables (JA1)

 Control Panel cable (JF1, see next page)

Connecting Power Cables

The H8DA8 has a 24-pin primary power supply connector "J1B4" at designated

"ATX Power" for connection to the ATX power supply. Connect the appropriate

connector from the power supply to the "ATX Power" connector to supply power to

the serverboard. See the Connector Deﬁ nitions section in this chapter for power

connector pin deﬁ nitions.

In addition, your power supply must be connected to the 8-pin Secondary ATX

Power connection at JPW2.

5-5

A+ Server 2020A-8R User's Manual

Connecting the Control Panel

JF1 contains header pins for various front control panel connectors. See Figure

5-2 for the pin locations of the various front control panel buttons and LED indica-

tors and refer to section 5-9 for details. Note that even and odd numbered pins

are on opposite sides of each header.

All JF1 wires have been bundled into single keyed ribbon cable to simplify their

connection. The red wire in the ribbon cable plugs into pin 1 of JF1. Connect

the other end of the cable to the Control Panel printed circuit board, located just

behind the system status LEDs in the chassis.

See the Connector Deﬁ nitions section in this chapter for details and pin descrip-

tions of JF1.

Figure 5-2. Front Control Panel Header Pins (JF1)

5-5 I/O Ports

Ground

x (key)

Power LED

HDD LED

NIC1

NIC2

OH/Fan Fail LED

Power Fail LED

Ground

20 19

NMI

x (key)

Vcc

Reset

Power

2 1

The I/O ports are color coded in conformance with the PC 99 speciﬁ cation. See

Figure 5-3 below for the colors and locations of the various I/O ports.

5-6

Mouse (Green)

Chapter 5: Advanced Serverboard Setup

Figure 5-3. Rear Panel I/O Ports

USB 0/1 Ports

Keyboard

(Purple)

(Turquoise)

VGA Port (Blue) COM1 Port

JLAN1 / JLAN2

5-6 Installing Memory

CAUTION

Exercise extreme care when installing or removing memory modules

to prevent any possible damage.

1. Insert each memory module vertically into its slot, beginning with CPU1 slot 1A,

then 1B, etc.. Pay attention to the notch along the bottom of the module to prevent

inserting the module incorrectly (see Figure 5-4). See support information below.

2. Gently press down on the memory module until it snaps into place.

Note: each processor has its own built-in memory controller, so CPU2 DIMMs can-

not be addressed if only a single CPU is installed. 128 MB, 256 MB, 512 MB, 1

GB and 2 GB* memory modules are supported.

*With Opteron 246 C-stepping CPUs and above.

Support

The H8DA8 supports single or dual-channel, registered ECC DDR400/333/266/200

SDRAM.

Both interleaved and non-interleaved memory are supported, so you may populate

any number of DIMM slots (see note on previous page). The CPU2 DIMM slots

can only be accessed when two CPUs are installed (however, the CPU2 DIMM slots

are not required to be populated when two CPUs are installed).

Populating two adjacent slots at a time with memory modules of the same size and

type will result in interleaved (128-bit) memory, which is faster than non-interleaved

(64-bit) memory.

5-7

A+ Server 2020A-8R User's Manual

Optimizing memory performance

If two processors are installed, it is better to stagger pairs of DIMMs across both

sets of CPU DIMM slots, e.g. ﬁ rst populate CPU1 slots 1A and 1B, then CPU2 slots

1A, and 1B, then the next two CPU1 slots, etc. This balances the load over both

CPUs to optimize performance.

Maximum memory (two CPUs): 32 GB for DDR266/200 and 16 GB for

DDR400/333. If only one CPU is installed, maximum supported memory is halved

(16 GB for DDR266/200 and 8 GB for DDR400/333).

Figure 5-4. Side and Top Views of DDR Installation

To Install:

Insert module vertically and press down until it snaps into place. The release tabs should close - if they do not you should close them yourself.

Note the notch in the slot and on the bottom of the DIMM. These prevent the DIMM from being installed incorrectly.

To Remove:

Use your thumbs to gently push each release tab outward to release the DIMM from the slot.

Populating Memory Banks for Non-Interleaved (64-bit) Operation

CPU1

DIMM1A

X X

CPU1

DIMM1B

CPU1

DIMM2A

CPU1

DIMM2B

CPU2

DIMM1A

CPU2

DIMM1B

CPU2

DIMM2A

CPU2

DIMM2B

5-8

Chapter 5: Advanced Serverboard Setup

Populating Memory Banks for Interleaved (128-bit) Operation

CPU1

DIMM1A

XX XX

XXXX

XX XXXX

XXXXXXXX

CPU1

DIMM1B

CPU1

DIMM2A

XX XX

CPU1

DIMM2B

CPU2

DIMM1A

XXXX

CPU2

DIMM1B

CPU2

DIMM2A

CPU2

DIMM2B

Notes: X indicates a populated DIMM slot. If adding four DIMMs (with two CPUs installed), the conﬁ guration in rows 2 and 6 (with DIMMs spread over both CPUs) will result in optimized performance.

5-7 Adding PCI Cards

1. PCI slots:

The H8DA8 has six PCI expansion slots, which includes two 64-bit 133 MHz PCI-X

slots, two 64-bit 66 MHz PCI-X slots and two 32-bit 33 MHz PCI slots. (The 66 MHz

PCI-X #3 slot supports Zero Channel RAID.) An additional slot (slot #7) supports

a low proﬁ le IPMI 2.0 card.

The SC823S-R500LP chassis accommodates up to seven full-length, low-proﬁ le

PCI cards. PCI cards are installed directly to the serverboard (riser cards are not

needed).

2. PCI card installation:

Before installing a PCI add-on card, make sure you install it into a slot that supports

the speed of the card (see step 1, above). Begin by removing the screw from the

PCI shield that corresponds to the slot you wish to populate. Insert the PCI card

into the correct slot on the serverboard, pushing down with your thumbs evenly on

both sides of the card. Finish by securing the card to the chassis with the same

screw you removed from the PCI shield. Follow this procedure when adding a card

to other slots.

Note: the PCI slot shields help promote proper airlow in the chassis and shield the

inside of the system from EMI (electromagnetic interference). For these reasons,

make sure there is always a shield covering each unused slot.

5-9

A+ Server 2020A-8R User's Manual

5-8 Serverboard Details

Figure 5-5. H8DA8 Serverboard Layout

(not drawn to scale)

J101

USB0/1

JLAN1

JLAN2

JPL

COM1

VGA

Rage XL Graphics

Broadcom BCM5704

Winbond Super I/O

BIOS

FAN5 FAN6

JPG1

DP1

COM2

FAN8 (CPU2 Fan)

CPU2 DIMM 2A

CPU2 DIMM 2B

CPU2 DIMM 1A

CPU2 DIMM 1B

LPIPMI #7

PCI-X 133 MHz #6

PCI-X 133 MHz #5

PCI-X 66 MHz #4

PCI-X 66 MHz #3 ZCR

PCI 33 MHz #2

PCI 33 MHz #1

USB4

CPU2

JWD

ATX Power

J22

C1/2

JWOL

J1B4

JPA1

Battery

JBT1

J24

AMD-8131

JPA3

Adaptec

7902W

SCSI Controller

JB2

CPU1 DIMM 1B

CPU1 DIMM 1A

CPU1 DIMM 2B

CPU1 DIMM 2A

CPU1

FAN7 (CPU1 Fan)

AMD-8111

USB2/3

JPW2

FAN1

FAN2

FAN3

JFDD1

SPKR

JPA2

JK1/JWOR/JOH/JL1

JP10

JF1

JIDE#2

JA1

FAN4

JD1

J3P

JIDE#1

JAR

Notes:

Jumpers not indicated are for test purposes only.

5-10

Chapter 5: Advanced Serverboard Setup

H8DA8 Quick Reference

Jumpers Description Default Setting

J3P 3rd Power Fail Signal En/Dis Open (Disabled)

JBT1 CMOS Clear See Section 5-9

C1/2 I2C to PCI Enable/Disable Closed (Enabled)

JPA1 SCSI Controller En/Disable Pins 1-2 (Enabled)

JPA2/3 SCSI CH A/B Term. En/Dis Open (Enabled)

JPG1 VGA Enable/Disable Pins 1-2 (Enabled)

JPL JLAN1/JLAN2 En/Disable Pins 1-2 (Enabled)

JWD Watch Dog Pins 1-2 (Reset)

Connectors Description

1U IPMI IPMI 2.0 Socket

COM1, COM2 COM1/COM2 Serial Port/Header

DP1 Onboard +3.3V Power LED

Fans 1-8 System Fan Headers

J22 System Management Bus Header

J24 I

J101 PS/2 Keyboard/Mouse Ports

J1B4 24-Pin ATX Power Connector

JA1 Ultra320 SCSI Channel A Connector

JAR Power Supply Alarm Reset Header

JB2* Ultra320 SCSI Channel B Connector

JD1 Internal Speaker (Buzzer) Enable/Power LED Header

JF1 Front Panel Connector

JFDD1 Floppy Disk Drive Connector

JIDE#1/JIDE#2 IDE#1/IDE#2 Connectors

JK1 Keylock Header

JL1 Chassis Intrusion Header

JLAN1/2 Gigabit Ethernet (RJ45) Ports

JOH1 Overheat Warning Header

JP10 Power Fail and Alarm Reset Header

JPW2 8-Pin Power Connector

JWOL Wake-On-LAN Header

JWOR Wake-On-Ring Header

SPKR Onboard Speaker (Buzzer)

USB0/1 Universal Serial Ports1/2

USB2/3/4 USB Headers

VGA Video Port

C Header

5-11

A+ Server 2020A-8R User's Manual

5-9 Connector Deﬁ nitions

Power Supply Connectors

The primary power supply connector

(J1B4) on the H8DA8 meets the SSI

(Superset ATX) 24-pin speciﬁ cation.

Refer to the table on the right for the

pin deﬁ nitions of the ATX 24-pin power

connector.

Note: You must also connect the 8-

pin (JPW2) power connector to your

power supply (see below).

Secondary Power Connector

In addition to the Primary ATX power

connector (above), the Secondary

12v 8-pin power connector at JPW2

must also be connected to your power

supply. See the table on the right for

pin deﬁ nitions.

ATX Power 24-pin Connector

Pin Deﬁ nitions (J1B4)

Pin# Deﬁ nition Pin # Deﬁ nition

13 +3.3V 1 +3.3V

14 -12V 2 +3.3V

15 COM 3 COM

16 PS_ON 4 +5V

17 COM 5 COM

18 COM 6 +5V

19 COM 7 COM

20 Res (NC) 8 PWR_OK

21 +5V 9 5VSB

22 +5V 10 +12V

23 +5V 11 +12V

24 COM 12 +3.3V

Secondary Power

Connector

Pin Deﬁ nitions (JPW2)

Pins Deﬁ nition

1 through 4 Ground

5 through 8 +12V

Required Connection

NMI Button

The non-maskable interrupt button

header is located on pins 19 and 20

of JF1. Refer to the table on the right

for pin deﬁ nitions.

Power LED

The Power LED connection is located

on pins 15 and 16 of JF1. Refer to the

table on the right for pin deﬁ nitions.

NMI Button

Pin Deﬁ nitions (JF1)

Pin# Deﬁ nition

19 Control

20 Ground

Power LED

Pin Deﬁ nitions (JF1)

Pin# Deﬁ nition

15 Vcc

16 Control

5-12

HDD LED

Chapter 5: Advanced Serverboard Setup

The HDD (IDE Hard Disk Drive) LED

connection is located on pins 13 and

14 of JF1. Attach the IDE hard drive

LED cable to display disk activity.

Refer to the table on the right for pin

deﬁ nitions.

NIC1 LED

The NIC1 (Network Interface Control-

ler) LED connection is located on pins

11 and 12 of JF1. Attach the NIC1

LED cable to display network activity.

Refer to the table on the right for pin

deﬁ nitions.

NIC2 LED

The NIC2 (Network Interface Control-

ler) LED connection is located on pins

9 and 10 of JF1. Attach the NIC2

LED cable to display network activity.

Refer to the table on the right for pin

deﬁ nitions.

HDD LED

Pin Deﬁ nitions (JF1)

Pin# Deﬁ nition

13 Vcc

14 HD Active

NIC1 LED

Pin Deﬁ nitions (JF1)

Pin# Deﬁ nition

11 Vcc

12 NIC1 Active

NIC2 LED

Pin Deﬁ nitions (JF1)

Pin# Deﬁ nition

9 Vcc

10 NIC2 Active

Overheat/Fan Fail LED

Connect an LED to the OH connection

on pins 7 and 8 of JF1 to provide ad-

vanced warning of chassis overheat-

ing. Refer to the table on the right for

pin deﬁ nitions.

Power Fail LED

The Power Fail LED connection is

located on pins 5 and 6 of JF1. Refer

to the table on the right for pin deﬁ ni-

tions. This feature is only available

for systems with redundant power

supplies.

5-13

OH/Fan Fail LED

Pin Deﬁ nitions (JF1)

Pin# Deﬁ nition

7 Vcc

8 Control

Power Fail LED

Pin Deﬁ nitions (JF1)

Pin# Deﬁ nition

5 Vcc

6 Control

A+ Server 2020A-8R User's Manual

Reset Button

The Reset Button connection is lo-

cated on pins 3 and 4 of JF1. Attach

it to the hardware reset switch on the

computer case. Refer to the table on

the right for pin deﬁ nitions.

Power Button

The Power Button connection is

located on pins 1 and 2 of JF1. Mo-

mentarily contacting both pins will

power on/off the system. This button

can also be conﬁ gured to function

as a suspend button (see the Power

Button Mode setting in BIOS). To turn

off the power when set to suspend

mode, depress the button for at least

4 seconds. Refer to the table on the

right for pin deﬁ nitions.

Reset Button

Pin Deﬁ nitions (JF1)

Pin# Deﬁ nition

3 Reset

4 Ground

Power Button

Pin Deﬁ nitions (JF1)

Pin# Deﬁ nition

1 PW_ON

2 Ground

Universal Serial Bus Ports (USB0/1)

Two Universal Serial Bus ports

(USB1.1) are located beside the key-

board/mouse ports. See the table on

the right for pin deﬁ nitions.

Chassis Intrusion

A Chassis Intrusion header is located

at JL1. Attach the appropriate cable

to inform you of a chassis intrusion.

5-14

Universal Serial Bus Ports

Pin Deﬁ nitions (USB0/1)

USB0 Pin # Deﬁ nition

1 +5V 1 +5V

2 PO- 2 PO-

3 PO+ 3 PO+

4 Ground 4 Ground

Chassis Intrusion

Pin Deﬁ nitions (JL1)

Pin# Deﬁ nition

1 Intrusion Input

2 Ground

USB1 Pin # Deﬁ nition

Chapter 5: Advanced Serverboard Setup

Serial Ports

The COM1 serial port is located be-

side the VGA port. COM2 is a header

on the serverboard located near the

BIOS chip (see serverboard layout for

location). See the table on the right

for pin deﬁ nitions.

Power Fail and Alarm Reset Header

Connect a cable from your power sup-

ply to the JP10 header to provide you

with warning of a power supply failure.

The warning signal is passed through

the PWR_LED pin to indicate a power

failure. See the table on the right for

pin deﬁ nitions.

Serial Port Pin Deﬁ nitions

(COM1/COM2)

Pin # Deﬁ nition Pin # Deﬁ nition

1CD 6DSR

2RD 7RTS

3TD 8 CTS

4DTR 9RI

5 Ground 10 NC

Note: Pin 10 is included on the header but not on

the port. NC indicates no connection.

Power Fail/Alarm Reset

Header

Pin Deﬁ nitions (JP10)

Pin# Deﬁ nition

1 P/S 1 Fail Signal

2 P/S 2 Fail Signal

3 P/S 3 Fail Signal

4 Reset (from MB)

Note: This feature is only available when using

redundant power supplies.

Fan Headers

The H8DAR has eight headers (FAN1-

FAN8). Fan speed is controlled via

Thermal Management with a BIOS

setting. See the table on the right for

pin deﬁ nitions.

JLAN1/2 (Ethernet Ports)

Two Gigabit Ethernet ports (desig-

nated JLAN1 and JLAN2) are located

beside the VGA port. These ports

accept RJ45 type cables.

5-15

Fan Header

Pin Deﬁ nitions

(FAN1-8)

Pin# Deﬁ nition

1 Ground (Black)

2 +12V (Red)

3 Tachometer

4 PWM Control

A+ Server 2020A-8R User's Manual

Extra USB Headers

Three additional USB1.1 headers

(USB2/3/4) are included on the

serverboard. These may be con-

nected to provide front side access.

A USB cable (not included) is needed

for the connection. See the table on

the right for pin deﬁ nitions.

Power LED/Speaker

On JD1, pins 1, 2, and 3 are for the

power LED and pins 4 through 7 are

for the speaker. See the tables on the

right for pin deﬁ nitions.

Note: The speaker connector pins are

for use with an external speaker. If

you wish to use the onboard speaker,

you should close pins 6 and 7 with a

jumper.

Extra Universal Serial Bus Headers

Pin Deﬁ nitions (USB2/3/4)

USB2 Pin # Deﬁ nition

1 +5V 1 +5V

2 PO- 2 PO-

3 PO+ 3 PO+

4 Ground 4 Ground

5 Key 5 No connection

PWR LED Connector

Pin Deﬁ nitions (JD1)

Pin# Deﬁ nition

1+Vcc

2 -Vcc

3 -Vcc

Speaker Connector

Pin Deﬁ nitions (JD1)

Pin# Deﬁ nition

4 Red wire, Speaker data

5 No connection

6 Buzzer signal

7 Speaker data

USB3/4 Pin # Deﬁ nition

ATX PS/2 Keyboard and PS/2 Mouse Ports

The ATX PS/2 keyboard and the PS/2

mouse ports are located at J101. See

the table on the right for pin deﬁ ni-

tions.

PS/2 Keyboard and

Mouse Port Pin

Deﬁ nitions (J101)

Pin# Deﬁ nition

1 Data

2NC

3 Ground

4 VCC

5 Clock

6NC

5-16

Wake-On-LAN

The Wake-On-LAN header is desig-

nated JWOL. See the table on the

right for pin deﬁ nitions. You must

have a LAN card with a Wake-On-LAN

connector and cable to use the Wake-

On-LAN feature.

Wake-On-Ring

Chapter 5: Advanced Serverboard Setup

Wake-On-LAN

Pin Deﬁ nitions

(JWOL)

Pin# Deﬁ nition

1 +5V Standby

2 Ground

3 Wake-up

The Wake-On-Ring header is desig-

nated JWOR. This function allows

your computer to receive and "wake-

up" by an incoming call to the modem

when in suspend state. See the table

on the right for pin deﬁ nitions. You

must have a Wake-On-Ring card and

cable to use this feature.

SMB Power (I2C) Header

The header at J24 is for I2C, which

may be used to monitor the status of

the power supply, fans and system

temperature. See the table on the right

for pin deﬁ nitions.

Wake-On-Ring Pin Deﬁ nitions

(JWOR)

Pin# Deﬁ nition

1 Ground (Black)

2 Wake-up

SMB Power (I2C)

Pin Deﬁ nitions (J24)

Pin# Deﬁ nition

1 Clock

2 Data

3N/A

4N/A

5N/A

SMB Header

The System Management Bus header

is located at J22. Connect the appro-

priate cable here to utilize SMB on your

system. See the table on the right for

pin deﬁ nitions.

SMB

Pin Deﬁ nitions (J22)

Pin# Deﬁ nition

1 SMB Data

2 Ground

3 SMB Clock

4N/A

5-17

A+ Server 2020A-8R User's Manual

5-10 Jumper Settings

Explanation of Jumpers

To modify the operation of the

serverboard, jumpers can be used

to choose between optional settings.

Jumpers create shorts between two

pins to change the function of the

connector. Pin 1 is identiﬁ ed with a

square solder pad on the printed circuit

board. See the diagram at right for

an example of jumping pins 1 and 2.

Refer to the serverboard layout page

for jumper locations.

Note 1: On two-pin jumpers, "Closed"

means the jumper is on and "Open"

means the jumper is off the pins.

CMOS Clear

Connector

321

Pins

Jumper

321

Setting

JBT1 is used to clear CMOS and will also clear any passwords. Instead of pins,

this jumper consists of contact pads to prevent accidentally clearing the contents

of CMOS.

To clear CMOS,

1) First power down the system and unplug the power cord(s).

2) With the power disconnected, short the CMOS pads with a metal object such as

a small screwdriver for at least four seconds.

3) Remove the screwdriver (or shorting device).

4) Reconnect the power cord(s) and power on the system.

Notes:

Do not use the PW_ON connector to clear CMOS.

The onboard battery does not need to be removed when clearing CMOS, however

you must short JBT1 for at least four seconds.

JBT1 contact pads

5-18

JLAN1/2 Enable/Disable

Change the setting of jumper JPL

to enable or disable the JLAN1 and

JLAN2 Gb Ethernet ports. See the

table on the right for jumper settings.

The default setting is enabled

VGA Enable/Disable

JPG1 allows you to enable or disable

the VGA port. The default position is

on pins 1 and 2 to enable VGA. See

the table on the right for jumper set-

tings.

Chapter 5: Advanced Serverboard Setup

JLAN1/2 Enable/Disable

Jumper Settings (JPL)

Jumper Setting Deﬁ nition

Pins 1-2 Enabled

Pins 2-3 Disabled

VGA Enable/Disable

Jumper Settings (JPG1)

Jumper Setting Deﬁ nition

Pins 1-2 Enabled

Pins 2-3 Disabled

I2C to PCI Enable/Disable

JI2C1/2 pair of jumpers allow you to

connect the System Management Bus

to any one of the PCI slots. The default

setting is closed (on) for both jumpers

to enable the connection. Both con-

nectors must have the same setting

(JI

C1 is for data and JI2C2 is for the

clock). See the table on right for pin

deﬁ nitions.

SCSI Controller Enable/ Disable

Jumper JPA1 is used to enable or dis-

able the Adaptec SCSI controller. The

default setting is on pins 1-2 to enable

SCSI. See the table on right for pin

I2C to PCI Enable/Disable

Jumper Settings

(JI2C1/2)

Jumper Setting Deﬁ nition

Closed Enabled

Open Disabled

SCSI Enable/Disable

Jumper Settings (JPA1)

Both Jumpers Deﬁ nition

Pins 1-2 Enabled

Pins 2-3 Disabled

deﬁ nitions.

5-19

A+ Server 2020A-8R User's Manual

SCSI Termination Enable/ Disable

Jumper JPA2 and JPA3 are used to

enable or disable termination for the

SCSI Channel A and B connectors, re-

spectively. The default setting for both

is open to enable termination. See the

table on right for pin deﬁ nitions.

Note: In order for the SCSI drives to

function properly, please do not change

the default setting (enabled) set by the

manufacturer.

SCSI Term. Enable/Disable

Jumper Settings (JPA2/JPA3)

Jumper Setting Deﬁ nition

Open Enabled

Closed Disabled

3rd Power Supply Fail Signal Enable/Disable

The system can notify you in the event

of a power supply failure. This feature

assumes that three redundant power

supply units are installed in the chas-

sis. If you only have one or two power

supplies installed, you should disable

the function with the J3P header to pre-

vent false alarms. See the table on the

right for jumper settings.

Watch Dog Enable/Disable

JWD controls the Watch Dog function.

Watch Dog is a system monitor that

can reboot the system when a software

application hangs. Pins 1-2 will cause

WD to reset the system if an applica-

tion has frozen. Pins 2-3 will generate

a non-maskable interrupt signal for the

application that is frozen. See the table

on the right for jumper settings. Watch

Dog must also be enabled in BIOS.

3rd Power Supply Fail Signal

Jumper Settings (J3P)

Jumper Setting Deﬁ nition

Open Enabled

Closed Disabled

Watch Dog

Jumper Settings (JWD)

Jumper Setting Deﬁ nition

Pins 1-2 Reset

Pins 2-3 NMI

Open Disabled

Note: When enabled, the user needs to

write their own application software in or-

der to disable the Watch Dog Timer.

5-20

Onboard Speaker Enable/ Disable

The JD1 header allows you to use

either an external speaker or the

internal (onboard) speaker. To use

the internal (onboard) speaker, close

pins 6 and 7 with a jumper. To use an

external speaker, connect the speaker

wires to pins 4 through 7 of JD1. See

the table on the right for settings and

the table associated with the Power

LED/Speaker connection (previous

section) for pin deﬁ nitions.

Chapter 5: Advanced Serverboard Setup

Onboard Speaker Enable/Disable

Pin Deﬁ nitions (JD1)

Pins Deﬁ nition

6-7 Jump for onboard speaker

4-7 Attach external speaker wires

5-11 Onboard Indicators

JLAN1/JLAN2 LEDs

The Ethernet ports (located beside

the VGA port) have two LEDs. On

each Gb LAN port, the yellow (right)

LED indicates activity while the left

LED may be green, orange or off to

indicate the speed of the connection.

See the table on the right for the func-

tions associated with the left (activity

speed) LED.

+3.3V Power LED

When illuminated, the DP1 LED

indicates that power from the pow-

er supply is being supplied to the

serverboard (DP1 indicates the pres-

ence of +3.3V). See the table on the

right for DP1 LED states.

JLAN Right LED

(Connection Speed Indicator)

LED Color Deﬁ nition

Off 10 MHz

Green 100 MHz

Amber 1 GHz

+3.3V Power LED

(DP1)

Color System Status

Green Power present on serverboard

Off No power present on serverboard

5-21

A+ Server 2020A-8R User's Manual

5-12 Floppy, IDE and SCSI Drive Connections

Use the following information to connect the ﬂ oppy and hard disk drive cables.

 The ﬂ oppy disk drive cable has seven twisted wires.

 A red mark on a wire typically designates the location of pin 1.

 A single ﬂ oppy disk drive ribbon cable has 34 wires and two connectors to provide

for two ﬂ oppy disk drives. The connector with twisted wires always connects to

drive A, and the connector that does not have twisted wires always connects to

drive B.

 The 80-wire ATA100/66 IDE hard disk drive cable that came with your system

has two connectors to support two drives. This special cable should be used

to take advantage of the speed this new technology offers. The blue connector

connects to the onboard IDE connector interface and the other connector(s) to

your hard drive(s). Consult the documentation that came with your disk drive

for details on actual jumper locations and settings for the hard disk drive.

Floppy Connector

The ﬂ oppy connector is located

beside the JIDE#2 connector.

See the table on the right for

pin deﬁ nitions.

Floppy Drive Connector

Pin Deﬁ nitions (JFDD1)

Pin# Deﬁ nition Pin # Deﬁ nition

1 GND 2 FDHDIN

3 GND 4 Reserved

5 Key 6 FDEDIN

7 GND 8 Index-

9 GND 10 Motor Enable

11 GND 12 Drive Select B-

13 GND 14 Drive Select A-

15 GND 16 Motor Enable

17 GND 18 DIR-

19 GND 20 STEP-

21 GND 22 Write Data-

23 GND 24 Write Gate-

25 GND 26 Track 00-

27 GND 28 Write Protect-

29 GND 30 Read Data-

31 GND 32 Side 1 Select-

33 GND 34 Diskette

5-22

Chapter 5: Advanced Serverboard Setup

IDE Connectors

There are no jumpers to con-

figure the onboard JIDE#1

and JIDE#2 connectors. See

the table on the right for pin

deﬁ nitions.

IDE Drive Connectors

Pin Deﬁ nitions (JIDE#1/JIDE#2)

Pin# Deﬁ nition Pin # Deﬁ nition

1 Reset IDE 2 Ground

3 Host Data 7 4 Host Data 8

5 Host Data 6 6 Host Data 9

7 Host Data 5 8 Host Data 10

9 Host Data 4 10 Host Data 11

11 Host Data 3 12 Host Data 12

13 Host Data 2 14 Host Data 13

15 Host Data 1 16 Host Data 14

17 Host Data 0 18 Host Data 15

19 Ground 20 Key

21 DRQ3 22 Ground

23 I/O Write 24 Ground

25 I/O Read 26 Ground

27 IOCHRDY 28 BALE

29 DACK3 30 Ground

31 IRQ14 32 IOCS16

33 Addr1 34 Ground

35 Addr0 36 Addr2

37 Chip Select 0 38 Chip Select 1

39 Activity 40 Ground

5-23

A+ Server 2020A-8R User's Manual

SCSI Connectors

Refer to the table at right for

pin deﬁ nitions for the Ultra320

SCSI connectors located at

JA1 and JB2.

Ultra320 SCSI Drive Connectors

Pin Deﬁ nitions (JA1/JB2)

Pin# Deﬁ nition Pin # Deﬁ nition

1 +DB (12) 35 -DB (12)

2 +DB (13) 36 -DB (13)

3 +DB (14) 37 -DB (14)

4 +DB (15) 38 -DB (15)

5 +DB (P1) 39 -DB (P1)

6 +DB (0) 40 -DB (0)

7 +DB (1) 41 -DB (1)

8 +DB (2) 42 -DB (2)

9 +DB (3) 43 -DB (3)

10 +DB (4) 44 -DB (4)

11 +DB (5) 45 -DB (5)

12 +DB (6) 46 -DB (6)

13 +DB (7) 47 -DB (7)

14 +DB (P) 48 -DB (P)

15 Ground 49 Ground

16 DIFFSENS 50 Ground

17 TERMPWR 51 TERMPWR

18 TERMPWR 52 TERMPWR

19 Reserved 53 Reserved

20 Ground 54 Ground

21 +ATN 55 -ATN

22 Ground 56 Ground

23 +BSY 57 -BSY

24 +ACK 58 -ACK

25 +RST 59 -RST

26 +MSG 60 -MSG

27 +SEL 61 -SEL

28 +C/D 62 -C/D

29 +REQ 63 -REQ

30 +I/O 64 -I/O

31 +DB (8) 65 -DB (8)

32 +DB (9) 66 -DB (9)

33 +DB (10) 67 -DB (10)

34 +DB (11) 68 -DB (11)

5-24

Chapter 6: Advanced Chassis Setup

Chapter 6

Advanced Chassis Setup

This chapter covers the steps required to install components and perform main-

tenance on the SC823S-R500LP chassis. For component installation, follow the

steps in the order given to eliminate the most common problems encountered. If

some steps are unnecessary, skip ahead to the step that follows.

Tools Required

The only tool you will need to install components and perform maintenance is a

Philips screwdriver.

6-1 Static-Sensitive Devices

Electricstatic discharge (ESD) can damage electronic com ponents. To prevent

damage to any printed circuit boards (PCBs), it is important to handle them very

carefully. The following measures are generally sufﬁ cient to protect your equipment

from ESD damage.

Precautions

 Use a grounded wrist strap designed to prevent static discharge.

 Touch a grounded metal object before removing any board from its antistatic

bag.

 Handle a board by its edges only; do not touch its components, peripheral chips,

memory modules or gold contacts.

 When handling chips or modules, avoid touching their pins.

 Put the serverboard, add-on cards and peripherals back into their antistatic bags

when not in use.

 For grounding purposes, make sure your computer chassis provides excellent

conductivity between the power supply, the case, the mounting fasteners and

the serverboard.

Unpacking

The serverboard is shipped in antistatic packaging to avoid static damage. When

unpacking the board, make sure the person handling it is static protected.

6-1

A+ Server 2020A-8R User's Manual

Figure 6-1. Front and Rear Chassis Views

SCSI Drives (6)

Keyboard/Mouse Ports

Floppy Drive

5.25" Drive Bay

Slim CD-ROM

Drive

System Reset

7 Low-Proﬁ le PCI Slots

Control Panel/ System

LEDs

NIC 1NIC 2

Main Power

USB Ports

COM1 Port

VGA Port

6-2

Ethernet Ports

Chapter 6: Advanced Chassis Setup

6-2 Control Panel

The control panel (located on the front of the chassis) must be connected to the

JF1 connector on the serverboard to provide you with system status indications. A

ribbon cable has bundled these wires together to simplify the connection.

Connect the cable from JF1 on the serverboard to JP4 on the Control Panel PCB

(printed circuit board). Make sure the red wire plugs into pin 1 on both JF1 and

JP4. Pull all excess cabling out of the airﬂ ow path. The LEDs inform you of sys-

tem status. See Chapter 3 for details on the LEDs and the control panel buttons.

Details on JF1 can be found in Chapter 5.

6-3 System Fans

Four 8-cm fans and an air shroud (which channels the air ﬂ ow to the processors)

provide all the cooling needed for the 2020A-8R. It is very important that the chassis

top cover is properly installed and making a good seal in order for the cooling air to

circulate properly through the chassis and cool the components. See Figure 6-2.

System Fan Failure

System fan speed is controlled via a setting in BIOS. If the system temperature

becomes too high, the overheat/fan fail LED on the control panel will illuminate. If

a fan fails, the overheat/fan fail LED on the control panel will ﬂ ash. Replace any

non-working fan immediately. The hot plug fan will start to function upon connection

to its fan header on the H8DA8 serverboard.

Replacing System Fans

1. Removing a fan

Remove the chassis cover. Press the tabs on the top of the fan housing and move

the fan and its housing. System power does not need to be shut down since the

fans are all hot-pluggable.

2. Installing a new fan

Replace the failed fan with an identical 8-cm, 12 volt fan (p/n FAN-0070). Position

the new fan at its proper place in the chassis by ﬁ tting the fan with its housing onto

the fan mounts in the chassis. A "click" can be heard if the fan (in its housing) is

properly installed. If the system power is on, the hot-plug feature will cause the

fan to start immediately upon being connected to its header on the serverboard.

6-3

A+ Server 2020A-8R User's Manual

Figure 6-2. System Cooling Fans

Fan shroud covering processors

Serverboard

System Cooling Fans

Power Supply

6-4 Drive Bay Installation/Removal

Accessing the Drive Bays

SCSI Drives: You do not need to access the inside of the chassis or remove power

to replace or swap SCSI drives. Proceed to the next step for instructions. Note:

You must use standard 1" high, 80-pin SCA SCSI drives in the 2020A-8R.

CD-ROM/Floppy Disk Drive: For installing/removing the CD-ROM or ﬂ oppy disk

drive, you will need to gain access to the inside of the server by removing the top

cover of the chassis. Proceed to the "CD-ROM and Floppy Drive Installation" sec-

tion later in this chapter for instructions.

5.25" Drive Bay: For installing/removing a component in the 5.25" drive bay, proceed

to the "5.25" Drive Bay Installation" section later in this chapter for instructions.

6-4

Chapter 6: Advanced Chassis Setup

SCSI Drive Installation

1. Mounting a SCSI drive in a drive carrier

The SCSI drives are mounted in drive carriers to simplify their installation and

removal from the chassis. These carriers also help promote proper airﬂ ow for the

SCSI drive bays. For this reason, even empty carriers without SCSI drives installed

must remain in the chassis.

To add a new SCSI drive, install a drive into the carrier with the printed circuit

board side toward the carrier so that the mounting holes align with those in the

carrier (3a). Secure the drive to the carrier with three screws on each side (3b),

as shown in Figure 6-3.

Figure 6-3. Mounting a SCSI Drive in a Carrier

Use caution when working around the SCSI backplane. Do not

touch the backplane with any metal objects and make sure no

ribbon cables touch the backplane or obstruct the holes, which

aid in proper airﬂ ow.

Important: Regardless of how many SCSI hard drives are in-

stalled, all SCSI drive carriers must remain in the drive bays for

proper airﬂ ow.

6-5

A+ Server 2020A-8R User's Manual

2. Installing/removing hot-swap SCSI drives

The SCSI drive bays are located in the front of the chassis, making them easily

accessible for installation and removal. The SCSI drives are hot-swap units, mean-

ing that they can be installed and removed while the system is running. To remove

a SCSI drive, ﬁ rst push the release button located beside the drive's LEDs, then

swing the handle fully out and use it to pull the SCSI drive carrier straight out (see

Figure 6-4).

Figure 6-4. Removing a SCSI Drive Carrier

Release Button

Important: All of the SCSI drive carriers must remain in the drive

bay to maintain proper cooling airﬂ ow.

Handle

6-6

Chapter 6: Advanced Chassis Setup

SCA Backplane

The SCSI drives plug into a SAF-TE compliant SCA backplane that provides power,

SCSI ID and bus termination. A RAID controller can be used with the SCA backplane

to provide data security. The operating system you use must have RAID support

to enable the hot-swap capability of the SCSI drive. The SCA SCSI backplane is

already preconﬁ gured; there are no jumpers or switches.

Figure 6-5. SCSI SCA Backplane

SCSI ID#0

SCSI ID#1

SCSI ID#2

SCSI ID#6 is used for the SAF-TE Controller

SCSI ID#3

SCSI ID#4

SCSI ID#5

Removing the air shroud

Under most circumstances you will not need to remove the air shroud to perform

any service on the system. However, if you wish to temporarily remove it (the air

shroud sould always be in place when the system is operating), please follow this

procedure.

Begin by depressing the tabs at the front and rear of the shroud to unlock it, then

lift it up and out of the chassis. To reinstall, simply position the air shroud in its

proper place and push it in until you hear it click.

6-7

A+ Server 2020A-8R User's Manual

Installing a Component in the 5.25" Drive Bay

1. Mounting a component in the drive carrier

A single 5.25" drive bay is located in the front of the chassis. A component such

as an additional IDE hard drive or a SCSI drive that can ﬁ t into a standard IDE

drive bay can be mounted in this 5.25" drive bay. A component added to this bay

should be mounted in a drive tray.

To add a component such as those noted above, install a drive into the tray with

the printed circuit board side toward the carrier (facing down) so that the mounting

holes align with those in the side of the tray. Secure the drive to the carrier with

the four screws.

2. Installing/removing 5.25" drive bay component

A component mounted in this drive bay is not hot-swappable, meaning system power

must be turned off before installing and/or removing it.

To remove the component, ﬁ rst power down the system and then remove the top

cover of the chassis. Unscrew the retention screw at the top center of the drive,

then push the drive tray out from the back until you can grasp and pull it out through

the front of the chassis. If installing, attach the component to the tray as described

above. Then reverse the drive tray removal procedure to install the drive, mak-

ing sure you screw in the retention screw. Replace the top chassis cover when

ﬁ nished.

6-8

Chapter 6: Advanced Chassis Setup

CD-ROM and Floppy Drive Installation

The top cover of the chassis must be opened to gain full access to the CD-ROM

and ﬂ oppy drive bays. The 2020A-8R accomodates only slim type CD-ROM drives.

Side mounting brakets are typically needed to mount a slim CD-ROM drive in the

2020A-8R server.

First, release the retention screws that secure the server unit to the rack. Grasp

the two handles on either side and pull the unit straight out until it locks (you will

hear a "click"). Next, depress the two buttons on the top of the chassis to release

the top cover and at the same time, push the cover away from you until it stops.

You can then lift the top cover from the chassis to gain full access to the inside of

the server. You must power down the system before installing or removing ﬂ oppy

or IDE components.

Drives mount on rails and should "click" into place to be correctly and fully installed

in their bays.

• The ﬂ oppy disk drive cable has seven twisted wires.

• A color mark on a cable typically designates the location of pin 1.

• A single ﬂ oppy disk drive ribbon cable has 34 wires and two connectors to provide

for two ﬂ oppy disk drives. The connector with twisted wires always connects to

drive A, and the connector that does not have twisted wires always connects to

drive B.

6-9

A+ Server 2020A-8R User's Manual

6-5 Power Supply

The 2020A-8R has a 500 watt redundant power supply consisting of two power mod-

ules. Each power supply module has an auto-switching capability, which enables it

to automatically sense and operate at a 100V or 240V input voltage.

Power Supply Failure

If either of the two power supply modules fail, the other module will take the full

load and allow the system to continue operation without interruption. The PWR

Fail LED will illuminate and remain on until the failed unit has been replaced. Re-

placement units can be ordered directly from the manufacturer. The power supply

units have a hot-swap capability, meaning you can replace the failed unit without

powering down the system.

Removing/Replacing the Power Supply

You do not need to shut down the system to replace a power supply unit. The

redundant feature will keep the system up and running while you replace the failed

hot-swap unit. Replace with the same model - SP502-2S (p/n PWS-0049).

1. Removing the power supply

First unplug the power cord from the failed power supply unit. Then depress the

locking tab on the power supply unit and pull the unit straight out with the rounded

handle.

2. Installing a new power supply

Replace the failed hot-swap unit with another SP502-2S power supply unit (p/n

PWS-0049). Simply push the new power supply unit into the power bay until you

hear a click. Secure the locking tab on the unit and ﬁ nish by plugging the AC power

cord back into the unit.

6-10

Chapter 7: BIOS

Chapter 7

BIOS

7-1 Introduction

This chapter describes the AMIBIOS™ Setup utility for the H8DA8. BIOS is stored

in a ﬂ ash chip and can be easily upgraded using a ﬂ oppy disk-based program.

Note: Due to periodic changes to the BIOS, some settings may have been added or

deleted and might not yet be recorded in this manual. Please refer to the Manual

Download area of our web site for any changes to BIOS that may not be reﬂ ected

in this manual.

Starting the Setup Utility

To enter the BIOS Setup Utility, hit the <Delete> key while the system is booting-up.

(In most cases, the <Delete> key is used to invoke the BIOS setup screen. There are

a few cases when other keys are used, such as <F1>, <F2>, etc.) Each main BIOS

menu option is described in this manual.

The Main BIOS screen has two main frames. The left frame displays all the options

that can be conﬁ gured. “Grayed-out” options cannot be conﬁ gured. The right frame

displays the key legend. Above the key legend is an area reserved for a text mes-

sage. When an option is selected in the left frame, it is highlighted in white. Often a

text message will accompany it. (Note that BIOS has default text messages built in.

We retain the option to include, omit, or change any of these text messages.) Set-

tings printed in Bold are the default values.

A "

" indicates a submenu. Highlighting such an item and pressing the <Enter>

key will open the list of settings within that submenu.

The BIOS setup utility uses a key-based navigation system called hot keys. Most of

these hot keys (<F1>, <F10>, <Enter>, <ESC>, <Arrow> keys, etc.) can be used at

any time during the setup navigation process.

Note: fan speed is controlled by the “Auto Fan Control” setting in BIOS. The recom-

mended setting for the 2020A-8R is “3-pin (Server)” If you load the BIOS default

settings this setting may change. Therefore, when loading BIOS defaults you should

reenter BIOS setup and change this setting back to “3-pin (Server)”, then save and

exit (see page 7-9).

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7-2 Main Setup

When you ﬁ rst enter AMI BIOS Setup Utility, you will see the Main setup screen.

You can always return to the Main setup screen by selecting the Main tab on the

top of the screen.

The Main Setup screen provides you with a system overview, which includes the

version, built date and ID of the AMIBIOS, the type, speed and number of the

processors in the system and the amount of memory installed in the system.

System Time/System Date

You can edit this ﬁ eld to change the system time and date. Highlight System Time

or System Date using the <Arrow> keys. Enter new values through the keyboard.

Press the <Tab> key or the <Arrow> keys to move between ﬁ elds. The date must

be entered in DAY/MM/DD/YYYY format. The time is entered in HH:MM:SS format.

Please note that time is in a 24-hour format. For example, 5:30 A.M. appears as

05:30:00 and 5:30 P.M. as 17:30:00.

7-3 Advanced Settings Menu

 CPU Conﬁ guration Sub-Menu

GART Error Reporting

This setting is used for testing only.

MTRR Mapping

This determines the method used for programming CPU MTRRs when 4 GB or more

memory is present. The options are Continuous, which makes the PCI hole non-

cacheable, and Discrete, which places the PCI hole below the 4 GB boundary.

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Chapter 7: BIOS

 IDE Conﬁ guration

Onboard PCI IDE Controller

The following options are available to set the IDE controller status: Disabled will dis-

able the controller. Primary will enable the primary IDE controller only. Secondary

will enable the secondary IDE controller only. Both will enable both the primary

and the secondary IDE controllers.

Primary IDE Master/Slave, Secondary IDE Master/Slave

Highlight one of the four items above and press <Enter> to access the submenu

for that item.

Type

Select the type of device connected to the system. The options are Not Installed,

Auto, CDROM and ARMD.

LBA/Large Mode

LBA (Logical Block Addressing) is a method of addressing data on a disk drive.

In the LBA mode, the maximum drive capacity is 137 GB. For drive capacities of

over 137 GB, your system must be equipped with 48-bit LBA mode addressing.

If not, contact your manufacturer or install an ATA/133 IDE controller card that

supports 48-bit LBA mode. The options are Disabled and Auto.

Block (Multi-Sector Transfer)

Block mode boosts IDE drive performance by increasing the amount of data

transferred. Only 512 bytes of data can be transferred per interrupt if block mode

is not used. Block mode allows transfers of up to 64 KB per interrupt. Select

"Disabled" to allow the data to be transferred from and to the device one sec-

tor at a time. Select "Auto" to allows the data transfer from and to the device

occur multiple sectors at a time if the device supports it. The options are Auto

and Disabled.

PIO Mode

PIO (Programmable I/O) mode programs timing cycles between the IDE drive

and the programmable IDE controller. As the PIO mode increases, the cycle time

decreases. The options are Auto, 0, 1, 2, 3, and 4. Select Auto to allow AMI

BIOS to auto detect the PIO mode. Use this value if the IDE disk drive support

cannot be determined. Select 0 to allow AMI BIOS to use PIO mode 0. It has a

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data transfer rate of 3.3 MBs. Select 1 to allow AMI BIOS to use PIO mode 1 for

a data transfer rate of 5.2 MBs. Select 2 to allow AMI BIOS to use PIO mode 2

for a data transfer rate of 8.3 MBs. Select 3 to allow AMI BIOS to use PIO mode

3 for a data transfer rate of 11.1 MBs. Select 4 to allow AMI BIOS to use PIO

mode 4 for a data transfer rate of 16.6 MBs. This setting generally works with

all hard disk drives manufactured after 1999. For other disk drives, such as IDE

CD-ROM drives, check the speciﬁ cations of the drive.

DMA Mode

Selects the DMA Mode. Options are Auto, SWDMA0, SWDMA1, SWDMA2,

MWDMA0. MDWDMA1, MWDMA2, UDMA0. UDMA1, UDMA2, UDMA3,

UDMA4 and UDMA5. (SWDMA=Single Word DMA, MWDMA=Multi Word DMA,

UDMA=UltraDMA.)

S.M.A.R.T. For Hard disk drives

Self-Monitoring Analysis and Reporting Technology (SMART) can help predict

impending drive failures. Select "Auto" to allow BIOS to auto detect hard disk

drive support. Select "Disabled" to prevent AMI BIOS from using the S.M.A.R.T.

Select "Enabled" to allow AMI BIOS to use the S.M.A.R.T. to support hard drive

disk. The options are Disabled, Enabled, and Auto.

32-Bit Data Transfer

Select "Enabled" to activate the function of 32-Bit data transfer. Select "Disabled"

to deactivate the function. The options are Enabled and Disabled.

Hard Disk Write Protect

Select Enabled to enable the function of Hard Disk Write Protect to prevent data

from being written to HDD. The options are Enabled or Disabled.

IDE Detect Time Out (Sec)

This feature allows the user to set the time-out value for detecting ATA, ATA PI

devices installed in the system. The options are 0 (sec), 5, 10, 15, 20, 25, 30 and

35.

ATA(PI) 80Pin Cable Detection

This setting allows AMI BIOS to auto-detect the 80-Pin ATA(PI) cable. The options

are Host & Device, Host and Device.

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Chapter 7: BIOS

 Floppy Conﬁ guration

Floppy A

Move the cursor to these ﬁ elds via up and down <arrow> keys to select the ﬂ oppy

type. The options are Disabled, 360 KB 5 1/4", 1.2 MB 5 1/4", 720 KB 3½", 1.44

MB 3½”, and 2.88 MB 3½".

Floppy B

Move the cursor to these ﬁ elds via up and down <arrow> keys to select the ﬂ oppy

type. The options are Disabled, 360 KB 5 1/4", 1.2 MB 5 1/4", 720 KB 3½", 1.44

MB 3½”, and 2.88 MB 3½".

Onboard Floppy Controller

Use this setting to Enable or Disable the onboard ﬂ oppy controller.

Super IO Conﬁ guration

Serial Port1 Address

This option speciﬁ es the base I/O port address and Interrupt Request address of

serial port 1. Select "Disabled" to prevent the serial port from accessing any system

resources. When this option is set to Disabled, the serial port physically becomes

unavailable. Select "3F8/IRQ4" to allow the serial port to use 3F8 as its I/O port

address and IRQ 4 for the interrupt address. The options are Disabled, 3F8/IRQ4,

3E8/IRQ4 and 2E8/IRQ3.

Serial Port2 Address

This option speciﬁ es the base I/O port address and Interrupt Request address of

serial port 2. Select "Disabled" to prevent the serial port from accessing any system

resources. When this option is set to "Disabled", the serial port physically becomes

unavailable. Select "2F8/IRQ3" to allow the serial port to use 2F8 as its I/O port

address and IRQ 3 for the interrupt address. The options are Disabled, 2F8/IRQ3,

3E8/IRQ4 and 2E8/IRQ3.

Serial Port 2 Mode

Tells BIOS which mode to select for serial port 2. The options are Normal,

IrDA and ASKIR.

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Parallel Port Address

This option speciﬁ es the I/O address used by the parallel port. Select Disabled to

prevent the parallel port from accessing any system resources. When the value of

this option is set to Disabled, the printer port becomes unavailable. Select 378 to

allow the parallel port to use 378 as its I/O port address. The majority of parallel

ports on computer systems use IRQ7 and I/O Port 378H as the standard setting.

Select 278 to allow the parallel port to use 278 as its I/O port address. Select 3BC

to allow the parallel port to use 3BC as its I/O port address.

Parallel Port Mode

Specify the parallel port mode. The options are Normal, Bi-directional, EPP

and ECP.

Parallel Port IRQ

Select the IRQ (interrupt request) for the parallel port. The options are IRQ5 and IRQ7.

 ACPI Conﬁ guration

ACPI Aware OS

Use this setting to tell BIOS if the operating system recognizes ACPI functions.

The options are Yes and No.

 Advanced ACPI Conﬁ guration

ACPI 2.0 Support

Select "Yes" if your system supports ACPI 2.0, which will add additional tables

as per ACPI 2.0 speciﬁ cations. Options are Yes and No.

ACPI APIC Support

Select "Enabled" to allow the ACPI APIC Table Pointer to be included in the

RSDT pointer list. The options are Enabled and Disabled.

ACPI SRAT Table

This setting allows you to enable or disable the building of an ACPI SRAT table.

Options are Enabled and Disabled.

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Chapter 7: BIOS

BIOS --> AML ACPI Table

When Enabled, BIOS-->AML exchange table pointer to be included in (X) REDT

pointer list. Options are Enabled and Disabled.

Headless Mode

Select "Enabled" to activate the Headless Operation Mode through ACPI. The

options are Enabled and Disabled.

OS Console Redirection

When "Enabled", BIOS provides additional options to select remote access type.

The options are Enabled and Disabled.

PME, R1 S5 Wake Up

The options are Enabled and Disabled.

 Event Log Conﬁ guration

View Event Log

Highlight this item and press <Enter> to view the contents of the event log.

Mark All Events as Read

Highlight this item and press <Enter> to mark the DMI events as read.

Clear Event Log

This setting will clear all event logs when set to "OK". The options are OK and

Cancel.

Event Log Statistics

Highlight this item and press <Enter> to view details on the count of total unread

events.

 Hyper Transport Conﬁ guration

CPU0: CPU1 HT Link1 Speed

The HT link will run at the speed speciﬁ ed in this setting if it is slower than or equal

to the system clock and if the board is capable. Options are Auto, 200 MHz, 400

MHz, 600 MHz, 800 MHz and 1 GHz.

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CPU0: CPU1 HT Link1 Width

The HT link will run at the width speciﬁ ed in this setting. Options are Auto, 2 bit,

4 bit, 8 bit and 16 bit.

CPU0: PCI-X0 HT Link1 Speed

The HT link will run at the speed speciﬁ ed in this setting if it is slower than or equal

to the system clock and if the board is capable. Options are Auto, 200 MHz, 400

MHz and 600 MHz.

CPU0: PCI-X0 HT Link1 Width

The HT link will run at the width speciﬁ ed in this setting. Options are Auto, 2 bit,

4 bit, 8 bit and 16 bit.

 MPS Conﬁ guration

MPS Revision

This setting allows the user to select the MPS revision level. The options are 1.1

and 1.4.

 Remote Access Conﬁ guration

Remote Access

Use this setting to Enable or Disable remote access. If Enabled is selected, you

can select a Remote Access type.

 USB Conﬁ guration

This screen will display the module version and all USB enabled devices.

Legacy USB Support

Select "Enabled" to enable the support for USB Legacy. Disable Legacy support

if there are no USB devices installed in the system. The options are Disabled,

Enabled and Auto.

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Chapter 7: BIOS

 System Health Monitor

CPU Overheat Temperature

Use the "+" and "-" keys to set the CPU temperature threshold to between 65o

and 90

will light up and an alarm will sound. The LED and alarm will turn off once the

CPU temperature has dropped to 5 degrees below the threshold set. The default

setting is 78

The other items in the submenu are all systems monitor displays for the following

information:

CPU1 Temperature, CPU2 Temperature (for 2U systems), System Temperature,

CPU1 Vcore, CPU2 Vcore (for 2U systems), 3.3V Vcc, +5 Vin, +12Vin, -12V Vcc,

DDRA VTT, DDRB VTT, 1.2V for Hyper Transport, DIMM Voltage, 1.8V for chipset,

5V Standby and 3.3V Standby.

C. When this threshold is exceeded, the overheat LED on the chassis

 System Fan Monitor

Fan Speed Control Modules

This feature allows the user to determine how the system will control the speed

of the onboard fans. If the option is set to "3-pin fan", the fan speed is con-

trolled based upon the CPU die temperature. When the CPU die temperature

is higher, the fan speed will be higher as well. If the option is set to "4-pin", the

fan speed will be controlled by the Thermal Management Settings pre-conﬁ gured

by the user with this setting. Select "3-pin" if your chassis came with 3-pin fan

headers. Select "4-pin" if your chassis came with 4-pin fan headers. Select

"Workstation" if your system is used as a Workstation. Select "Server" if your

system is used as a Server. Select "Disable" to disable the fan speed control

function to allow the onboard fans to continuously run at full speed (12V). The

options are 1) Disable, Full Speed 2) 3-pin (Server), 3) 3-pin (Workstation),

4) 4-pin (Server) and 5) 4-pin (Workstation).

FAN1 Speed through FAN8 Speed

The speeds of the onboard fans (in rpm) are displayed here.

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7-4 PCI/PnP Menu

Plug & Play OS

Select Yes to allow the OS to conﬁ gure Plug & Play devices. (This is not required

for system boot if your system has an OS that supports Plug & Play.) Select No

to allow AMIBIOS to conﬁ gure all devices in the system.

PCI Latency Timer

This option sets the latency of all PCI devices on the PCI bus. Select a value to

set the PCI latency in PCI clock cycles. Options are 32, 64, 96, 128, 160, 192,

224 and 248.

Allocate IRQ to PCI VGA

Set this value to allow or restrict the system from giving the VGA adapter card an

interrupt address. The options are Yes and No.

Palette Snooping

Select "Enabled" to inform the PCI devices that an ISA graphics device is installed

in the system in order for the graphics card to function properly. The options are

Enabled and Disabled.

PCI IDE BusMaster

Set this value to allow or prevent the use of PCI IDE busmastering. Select "Enabled"

to allow AMI BIOS to use PCI busmaster for reading and writing to IDE drives. The

options are Disabled and Enabled.

Offboard PCI/ISA IDE Card

This option allows the user to assign a PCI slot number to an Off-board PCI/ISA

IDE card in order for it to function properly. The options are Auto, PCI Slot1, PCI

Slot2, PCI Slot3, PCI Slot4, PCI Slot5, and PCI Slot6.

IRQ3/IRQ4/IRQ5/IRQ7/IRQ9/IRQ10/IRQ11/IRQ14/IRQ15

This feature speciﬁ es the availability of an IRQ to be used by a PCI/PnP device.

Select Reserved for the IRQ to be used by a Legacy ISA device. The options are

Available and Reserved.

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Chapter 7: BIOS

DMA Channel 0/Channel 1/Channel 3/Channel 5/Channel 6/Channel 7

Select Available to indicate that a speciﬁ c DMA channel is available to be used by

a PCI/PnP device. Select Reserved if the DMA channel speciﬁ ed is reserved for

a Legacy ISA device. The options are Available and Reserved.

Reserved Memory Size

This feature speciﬁ es the size of memory block to be reserved for Legacy ISA

devices. The options are Disabled, 16K, 32K and 64K.

7-5 Boot Menu

The Boot menu contains several sub-menus.

 Boot Settings Conﬁ guration

Quick Boot

If Enabled, this option will skip certain tests during POST to reduce the time needed

for the system to boot up. The options are Enabled and Disabled.

Quiet Boot

If Disabled, normal POST messages will be displayed on boot-up. If Enabled, this

display the OEM logo instead of POST messages.

Add-On ROM Display Mode

This setting controls the display of add-on ROM (read-only memory) messages.

Select "Force BIOS" to allow the computer system to force a third party BIOS to

display during system boot. Select "Keep Current" to allow the computer system

to display the BIOS information during system boot.

Boot up Num-Lock

Set this to "On" to allow the Number Lock setting to be modiﬁ ed during boot up.

The options are On and Off.

PS/2 Mouse Support

This setting is to specify PS/2 mouse support. The options are Auto, Enabled

and Disabled.

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Wait for ‘F1’ If Error

Enable to activate the Wait for F1 if Error function. The options are Enabled and

Disabled.

Hit ‘DEL’ Message Display

Enable to display the message telling the user to hit the DEL key to enter the setup

utility. The options are Enabled and Disabled.

Interrupt 19 Capture

Enable to allow ROMs to trap Interrupt 19. The options are Enabled and Dis-

abled.

 Boot Device Priority

This feature allows the user to prioritize the sequence for the Boot Device with the

devices installed in the system. The default settings (with generic names) are:

· 1st Boot Device – Removeable drive (e.g. ﬂ oppy drive)

· 2nd Boot Device – CD/DVD

· 3rd Boot Device – Hard drive

· 4th Boot Device – LAN

· 5th Boot Device – LAN

 Hard Disk Drives

This feature allows the user to prioritize the Boot sequence from available hard

drives.

1st Drive/2nd Drive

Specify the boot sequence for 1st Hard Drive and 2nd Hard Drive.

 Removable Drives

This feature allows the user to specify the Boot sequence from available remov-

able drives.

1st Drive

Speciﬁ es the boot sequence for the 1st Removable Drive. The options are 1st

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Chapter 7: BIOS

Floppy Drive and Disabled.

 CD/DVD Drives

This feature allows the user to specify the boot sequence from available CDROM

drives.

1st Drive

Speciﬁ es the boot sequence for the 1st Hard Drive.

7-6 Security Menu

AMI BIOS provides a Supervisor and a User password. If you use both passwords,

the Supervisor password must be set ﬁ rst.

Change Supervisor Password

Select this option and press <Enter> to access the sub menu, and then type in

the password.

Change User Password

Select this option and press <Enter> to access the sub menu, and then type in

the password.

Clear User Password

Select this option and press <Enter> to access the sub menu. You can use the

sub menu to clear the user password.

Boot Sector Virus Protection

This option is near the bottom of the Security Setup screen. Select "Disabled" to

deactivate the Boot Sector Virus Protection. Select "Enabled" to enable boot sector

protection. When "Enabled", AMI BIOS displays a warning when any program (or

virus) issues a Disk Format command or attempts to write to the boot sector of the

hard disk drive. The options are Enabled and Disabled.

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7-7 Chipset Menu

 North Bridge Conﬁ guration

 Memory Conﬁ guration

Memclock Mode

This setting determines how the memory clock is set. Auto has the memory clock set by the code and Limit allows the user to set a standard value.

MCT Timing Mode

Sets the timing mode for memory. Options are Auto and Manual.

User Conﬁ guration Mode

Options are Auto and Manual.

Burst Length

Use this setting to set the memory burst length. 64-bit Dq must use 4 beats. Options are 8 beats, 4 beats and 2 beats.

Enable Clock to All DIMMs

This setting allows the user to enable unused clocks to DIMMs, even if DIMM slots are empty. Options are Enabled and Disabled.

Software Memory Hole

When "Enabled", allows software memory remapping around the memory hole. Options are Enabled and Disabled.

Hardware Memory Hole

When "Enabled", allows software memory remapping around the memory hole (only supported by rev. EO processors and above). Options are Enabled and Disabled.

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Chapter 7: BIOS

 ECC Conﬁ guration

DRAM ECC Enable

DRAM ECC allows hardware to report and correct memory errors automatically. Options are Enabled and Disabled.

MCA DRAM ECC Logging

When "Enabled", MCA DRAM ECC logging and reporting is enabled. Options

are Enabled and Disabled.

ECC Chipkill

Allows the user to enabled ECC Chipkill. Options are Enabled and Dis-

abled.

DRAM Scrub Redirect

Allows system to correct DRAM ECC errors immediately, even with back-

ground scrubbing on. Options are Enabled and Disabled.

DRAM BG Scrub

Corrects memory errors so later reads are correct. Options are Disabled

and various times in nanoseconds and microseconds.

L2 Cache BG Scrub

Allows L2 cache RAM to be corrected when idle. Options are Disabled and

various times in nanoseconds and microseconds.

Data Cache BG Scrub

Allows L1 cache RAM to be corrected when idle. Options are Disabled and

various times in nanoseconds and microseconds.

 IOMMU Option Menu

IOMMU Mode

IOMMU is supported on Linux-based systems to convert 32-bit I/O addresses

to 64-bit. Options are Disabled, Best Fit and Absolute. Selecting the Best Fit

or Absolute settings allows the user to select aperture size.

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 South Bridge Conﬁ guration

2.0 SMBus Controller

Allows the user to Enable or Disable the SMBus controller.

HT Link0 P-Comp Mode

Allows user to set values for this mode. Options are Auto (hardware compensa-

tion values), Data (allows user to override auto values with an absolute value),

CalComp + Data (allows user to add to the generated value) and CalComp - Data

(allows user to subtract from the generated value).

HT Link0 N-Comp Mode

Allows user to set values for this mode. Options are Auto (hardware compensa-

tion values), Data (allows user to override auto values with an absolute value),

CalComp + Data (allows user to add to the generated value) and CalComp - Data

(allows user to subtract from the generated value).

HT Link0 RZ-Comp Mode

Allows user to set values for this mode. Options are Auto (hardware compensa-

tion values), Data (allows user to override auto values with an absolute value),

CalComp + Data (allows user to add to the generated value) and CalComp - Data

(allows user to subtract from the generated value).

 PCI-X Conﬁ guration

Errata 56 PCLCK

Enables or Disables 8131 Errata 56 if a PC card behind 8131 bridge has more

than four functions and bus speed is 133 MHz.

HT Link0 P-Comp Mode

Allows user to set values for this mode. Options are Auto (hardware compensa-

tion values), Data (allows user to override auto values with an absolute value),

CalComp + Data (allows user to add to the generated value) and CalComp - Data

(allows user to subtract from the generated value).

HT Link0 N-Comp Mode

Allows user to set values for this mode. Options are Auto (hardware compensa-

tion values), Data (allows user to override auto values with an absolute value),

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Chapter 7: BIOS

CalComp + Data (allows user to add to the generated value) and CalComp - Data

(allows user to subtract from the generated value).

HT Link0 RZ-Comp Mode

Allows user to set values for this mode. Options are Auto (hardware compensa-

tion values), Data (allows user to override auto values with an absolute value),

CalComp + Data (allows user to add to the generated value) and CalComp - Data

(allows user to subtract from the generated value).

HT Link1 P-Comp Mode

Allows user to set values for this mode. Options are Auto (hardware compensa-

tion values), Data (allows user to override auto values with an absolute value),

CalComp + Data (allows user to add to the generated value) and CalComp - Data

(allows user to subtract from the generated value).

HT Link1 N-Comp Mode

Allows user to set values for this mode. Options are Auto (hardware compensa-

tion values), Data (allows user to override auto values with an absolute value),

CalComp + Data (allows user to add to the generated value) and CalComp - Data

(allows user to subtract from the generated value).

HT Link1 RZ-Comp Mode

Allows user to set values for this mode. Options are Auto (hardware compensa-

tion values), Data (allows user to override auto values with an absolute value),

CalComp + Data (allows user to add to the generated value) and CalComp - Data

(allows user to subtract from the generated value).

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7-8 Power Menu

Power Button Mode

Allows the user to change the function of the power button. Options are Instant

Off and 4-Sec. Delay.

Restore on AC Power Loss

This setting allows you to choose how the system will react when power returns

after an unexpected loss of power. The options are Power Off, Power On and

Last State.

Watch Dog Timer

This setting is used to enable or disabled the Watch Dog Timer function. It must

be used in conjunction with the Watch Dog jumper (see Chapter 2 for details). The

options are Disabled and Enabled.

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Chapter 7: BIOS

7-9 Exit Menu

Select the Exit tab from AMI BIOS Setup Utility screen to enter the Exit BIOS Setup

screen.

Save Changes and Exit

When you have completed the system conﬁ guration changes, select this option

to leave BIOS Setup and reboot the computer, so the new system conﬁ guration

parameters can take effect. Select Save Changes and Exit from the Exit menu

and press <Enter>.

Discard Changes and Exit

Select this option to quit BIOS Setup without making any permanent changes to

the system conﬁ guration and reboot the computer. Select Discard Changes and

Exit from the Exit menu and press <Enter>.

Discard Changes

Select this option and press <Enter> to discard all the changes and return to AMI

BIOS Utility Program.

Load Optimal Defaults

To set this feature, select Load Optimal Defaults from the Exit menu and press

<Enter>. Then Select "OK" to allow BIOS to automatically load the Optimal Defaults

as the BIOS Settings. The Optimal settings are designed for maximum system

performance, but may not work best for all computer applications.

Load Fail-Safe Defaults

To set this feature, select Load Fail-Safe Defaults from the Exit menu and press

<Enter>. The Fail-Safe settings are designed for maximum system stability, but

not maximum performance.

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Notes

7-20

Appendix A: BIOS Error Beep Codes

Appendix A

BIOS Error Beep Codes

During the POST (Power-On Self-Test) routines, which are performed each time

the system is powered on, errors may occur.

Non-fatal errors are those which, in most cases, allow the system to continue the

boot-up process. The error messages normally appear on the screen.

Fatal errors are those which will not allow the system to continue the boot-up pro-

cedure. If a fatal error occurs, you should consult with your system manufacturer

for possible repairs.

These fatal errors are usually communicated through a series of audible beeps.

The numbers on the fatal error list, on the following page, correspond to the number

of beeps for the corresponding error. All errors listed, with the exception of Beep

Code 8, are fatal errors.

POST codes may be read on the debug LEDs located beside the LAN port on the

serverboard backplane. See the description of the Debug LEDs (LED1 and LED2)

in Chapter 5.

A-1 AMIBIOS Error Beep Codes

Beep Code Error Message Description

1 beep Refresh Circuits have been reset.

(Ready to power up.)

5 short, 1 long Memory error No memory detected in

system

8 beeps Display memory read/write error Video adapter missing or

with faulty memory

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Notes

A-2

Appendix B: BIOS POST Codes

Appendix B

BIOS POST Codes

When AMIBIOS performs the Power On Self Test, it writes checkpoint codes to I/O

port 0080h. If the computer cannot complete the boot process, diagnostic equipment

can be attached to the computer to read I/O port 0080h.

B-1 Uncompressed Initialization Codes

The uncompressed initialization checkpoint codes are listed in order of execution:

Checkpoint Code Description

D0h The NMI is disabled. Power on delay is starting. Next, the initialization code check-

D1h Initializing the DMA controller, performing the keyboard controller BAT test, starting

D3h Starting memory sizing next.

D4h Returning to real mode. Executing any OEM patches and setting the Stack next.

D5h Passing control to the uncompressed code in shadow RAM at E000:0000h. The

sum will be veriﬁ ed.

memory refresh and entering 4 GB ﬂ at mode next.

initialization code is copied to segment 0 and control will be transferred to segment

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B-2 Bootblock Recovery Codes

The bootblock recovery checkpoint codes are listed in order of execution:

Checkpoint Code Description

E0h The onboard ﬂ oppy controller if available is initialized. Next, beginning the base

E1h Initializing the interrupt vector table next.

E2h Initializing the DMA and Interrupt controllers next.

E6h Enabling the ﬂ oppy drive controller and Timer IRQs. Enabling internal cache mem-

Edh Initializing the ﬂ oppy drive.

Eeh Looking for a ﬂ oppy diskette in drive A:. Reading the ﬁ rst sector of the diskette.

Efh A read error occurred while reading the ﬂ oppy drive in drive A:.

F0h Next, searching for the AMIBOOT.ROM ﬁ le in the root directory.

F1h The AMIBOOT.ROM ﬁ le is not in the root directory.

F2h Next, reading and analyzing the ﬂ oppy diskette FAT to ﬁ nd the clusters occupied

F3h Next, reading the AMIBOOT.ROM ﬁ le, cluster by cluster.

F4h The AMIBOOT.ROM ﬁ le is not the correct size.

F5h Next, disabling internal cache memory.

FBh Next, detecting the type of ﬂ ash ROM.

FCh Next, erasing the ﬂ ash ROM.

512 KB memory test.

ory.

by the AMIBOOT.ROM ﬁ le.

FDh Next, programming the ﬂ ash ROM.

FFh Flash ROM programming was successful. Next, restarting the system BIOS.

B-2

Appendix B: BIOS POST Codes

B-3 Uncompressed Initialization Codes

The following runtime checkpoint codes are listed in order of execution.

These codes are uncompressed in F0000h shadow RAM.

Checkpoint Code Description

03h The NMI is disabled. Next, checking for a soft reset or a power on condition.

05h The BIOS stack has been built. Next, disabling cache memory.

06h Uncompressing the POST code next.

07h Next, initializing the CPU and the CPU data area.

08h The CMOS checksum calculation is done next.

0Ah The CMOS checksum calculation is done. Initializing the CMOS status register for

0Bh The CMOS status register is initialized. Next, performing any required initialization

0Ch The keyboard controller input buffer is free. Next, issuing the BAT command to the

0Eh The keyboard controller BAT command result has been veriﬁ ed. Next, performing

0Fh The initialization after the keyboard controller BAT command test is done. The key-

10h The keyboard controller command byte is written. Next, issuing the Pin 23 and 24

11h Next, checking if <End or <Ins> keys were pressed during power on. Initializing

12h Next, disabling DMA controllers 1 and 2 and interrupt controllers 1 and 2.

13h The video display has been disabled. Port B has been initialized. Next, initializing

14h The 8254 timer test will begin next.

19h Next, programming the ﬂ ash ROM.

1Ah The memory refresh line is toggling. Checking the 15 second on/off time next.

date and time next.

before the keyboard BAT command is issued.

keyboard controller.

any necessary initialization after the keyboard controller BAT command test.

board command byte is written next.

blocking and unblocking command.

CMOS RAM if the Initialize CMOS RAM in every boot AMIBIOS POST option was set in AMIBCP or the <End> key was pressed.

the chipset.

2Bh Passing control to the video ROM to perform any required conﬁ guration before the

video ROM test.

2Ch All necessary processing before passing control to the video ROM is done. Look-

ing for the video ROM next and passing control to it.

2Dh The video ROM has returned control to BIOS POST. Performing any required pro-

cessing after the video ROM had control

23h Reading the 8042 input port and disabling the MEGAKEY Green PC feature next.

Making the BIOS code segment writable and performing any necessary conﬁ guration before initializing the interrupt vectors.

24h The conﬁ guration required before interrupt vector initialization has completed. In-

terrupt vector initialization is about to begin.

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A+ Server 2020A-8R User's Manual

Checkpoint Code Description

25h Interrupt vector initialization is done. Clearing the password if the POST DIAG

27h Any initialization before setting video mode will be done next.

28h Initialization before setting the video mode is complete. Conﬁ guring the mono-

2Ah Bus initialization system, static, output devices will be done next, if present. See the

2Eh Completed post-video ROM test processing. If the EGA/VGA controller is not

2Fh The EGA/VGA controller was not found. The display memory read/write test is

30h The display memory read/write test passed. Look for retrace checking next.

31h The display memory read/write test or retrace checking failed. Performing the alter-

32h The alternate display memory read/write test passed. Looking for alternate display

34h Video display checking is over. Setting the display mode next.

37h The display mode is set. Displaying the power on message next.

38h Initializing the bus input, IPL, general devices next, if present. See the last page of

39h Displaying bus initialization error messages. See the last page of this chapter for

switch is on.

chrome mode and color mode settings next.

last page for additional information.

found, performing the display memory read/write test next.

about to begin.

nate display memory read/write test next.

retrace checking next.

this chapter for additional information.

additional information.

3Ah The new cursor position has been read and saved. Displaying the Hit <DEL> mes-

3Bh The Hit <DEL> message is displayed. The protected mode memory test is about

40h Preparing the descriptor tables next.

42h The descriptor tables are prepared. Entering protected mode for the memory test

43h Entered protected mode. Enabling interrupts for diagnostics mode next.

44h Interrupts enabled if the diagnostics switch is on. Initializing data to check memory

45h Data initialized. Checking for memory wraparound at 0:0 and ﬁ nding the total sys-

46h The memory wraparound test is done. Memory size calculation has been done.

47h The memory pattern has been written to extended memory. Writing patterns to the

48h Patterns written in base memory. Determining the amount of memory below 1 MB

49h The amount of memory below 1 MB has been found and veriﬁ ed.

4Bh The amount of memory above 1 MB has been found and veriﬁ ed. Checking for a

sage next.

to start.

next.

wraparound at 0:0 next.

tem memory size next.

Writing patterns to test memory next.

base 640 KB memory next.

next.

soft reset and clearing the memory below 1 MB for the soft reset next. If this is a power on situation, going to checkpoint 4Eh next.

B-4

Checkpoint Code Description

Appendix B: BIOS POST Codes

4Ch The memory below 1 MB has been cleared via a soft reset. Clearing the memory

4Dh The memory above 1 MB has been cleared via a soft reset. Saving the memory size

4Eh The memory test started, but not as the result of a soft reset. Displaying the ﬁ rst

4Fh The memory size display has started. The display is updated during the memory

50h The memory below 1 MB has been tested and initialized. Adjusting the displayed

51h The memory size display was adjusted for relocation and shadowing.

52h The memory above 1 MB has been tested and initialized. Saving the memory size

53h The memory size information and the CPU registers are saved. Entering real mode

54h Shutdown was successful. The CPU is in real mode. Disabling the Gate A20 line,

57h The A20 address line, parity, and the NMI are disabled. Adjusting the memory size

58h The memory size was adjusted for relocation and shadowing. Clearing the Hit

59h The Hit <DEL> message is cleared. The <WAIT...> message is displayed. Starting

above 1 MB next.

next. Going to checkpoint 52h next.

64 KB memory size next.

test. Performing the sequential and random memory test next.

memory size for relocation and shadowing next.

information next.

next.

parity, and the NMI next.

depending on relocation and shadowing next.

<DEL> message next.

the DMA and interrupt controller test next.

60h The DMA page register test passed. Performing the DMA Controller 1 base register

62h The DMA controller 1 base register test passed. Performing the DMA controller 2

65h The DMA controller 2 base register test passed. Programming DMA controllers 1

66h Completed programming DMA controllers 1 and 2. Initializing the 8259 interrupt

67h Completed 8259 interrupt controller initialization.

7Fh Extended NMI source enabling is in progress.

80h The keyboard test has started. Clearing the output buffer and checking for stuck

81h A keyboard reset error or stuck key was found. Issuing the keyboard controller

82h The keyboard controller interface test completed. Writing the command byte and

83h The command byte was written and global data initialization has completed. Check-

84h Locked key checking is over. Checking for a memory size mismatch with CMOS

85h The memory size check is done. Displaying a soft error and checking for a password

test next.

base register test next.

and 2 next.

controller next.

keys. Issuing the keyboard reset command next.

interface test command next.

initializing the circular buffer next.

ing for a locked key next.

RAM data next.

or bypassing WINBIOS Setup next.

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A+ Server 2020A-8R User's Manual

Checkpoint Code Description

86h The password was checked. Performing any required programming before WIN-

87h The programming before WINBIOS Setup has completed. Uncompressing the

88h Returned from WINBIOS Setup and cleared the screen. Performing any necessary

89h The programming after WINBIOS Setup has completed. Displaying the power on

8Ch Programming the WINBIOS Setup options next.

8Dh The WINBIOS Setup options are programmed. Resetting the hard disk controller

8Fh The hard disk controller has been reset. Conﬁ guring the ﬂ oppy drive controller

91h The ﬂ oppy drive controller has been conﬁ gured. Conﬁ guring the hard disk drive

95h Initializing the bus option ROMs from C800 next. See the last page of this chapter

96h Initializing before passing control to the adaptor ROM at C800.

97h Initialization before the C800 adaptor ROM gains control has completed. The adap-

98h The adaptor ROM had control and has now returned control to BIOS POST. Perform-

BIOS Setup next.

WINBIOS Setup code and executing the AMIBIOS Setup or WINBIOS Setup utility next.

programming after WINBIOS Setup next.

screen message next.

next.

controller next.

for additional information.

tor ROM check is next.

ing any required processing after the option ROM returned control.

99h Any initialization required after the option ROM test has completed. Conﬁ guring the

9Ah Set the timer and printer base addresses. Setting the RS-232 base address next.

9Bh Returned after setting the RS-232 base address. Performing any required initializa-

9Ch Required initialization before the Coprocessor test is over. Initializing the Coproces-

9Dh Coprocessor initialized. Performing any required initialization after the Coproces-

9Eh Initialization after the Coprocessor test is complete. Checking the extended keyboard,

A2h Displaying any soft errors next.

A3h The soft error display has completed. Setting the keyboard typematic rate next.

A4h The keyboard typematic rate is set. Programming the memory wait states next.

A5h Memory wait state programming is over. Clearing the screen and enabling parity

A7h NMI and parity enabled. Performing any initialization required before passing control

A8h Initialization before passing control to the adaptor ROM at E000h completed. Passing

timer data area and printer base address next.

tion before the Coprocessor test next.

sor next.

sor test next.

keyboard ID, and Num Lock key next. Issuing the keyboard ID command next.

and the NMI next.

to the adaptor ROM at E000 next.

control to the adaptor ROM at E000h next.

B-6

Checkpoint Code Description

Appendix B: BIOS POST Codes

A9h Returned from adaptor ROM at E000h control. Performing any initialization required

Aah Initialization after E000 option ROM control has completed. Displaying the system

Abh Uncompressing the DMI data and executing DMI POST initialization next.

B0h The system conﬁ guration is displayed.

B1h Copying any code to speciﬁ c areas.

00h Code copying to speciﬁ c areas is done. Passing control to INT 19h boot loader

after the E000 option ROM had control next.

conﬁ guration next.

next.

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A+ Server 2020A-8R User's Manual

Notes

B-8

Appendix D: System Speciﬁ cations

Appendix C

System Speciﬁ cations

Processors

Single or dual AMD Opteron™ 200 Series 64-bit processors in to 940-pin micro

PGA ZIF sockets

Chipset

AM D 8131 / 8111 chip s e t

BIOS

4 Mb AMIBIOS® Flash ROM

Memory Capacity

Eight 184-pin DIMM sockets supporting up to 32 GB of registered ECC

DDR266/200 or up to 16 GB of registered ECC DDR400/333 SDRAM

Note: Both interleaved and non-interleaved memor y supported. Memory capacity is halved

when using a single processor. See the memory section in Chapter 5 for details.

SCSI Controller

Adaptec AIC-7902 for dual channnel, Ultra320 onboard SCSI (Zero Channel

RAID supported)

SCSI Backplane

One (1) CSE-SCA-822S 2U SCSI backplane (SAF-TE compliant)

SCSI Drive Bays

Six (6) drive bays to house six (6) standard 1" 80-pin SCA SCSI drives

Peripheral Drive Bays

One (1) 3.5" ﬂ oppy drive

One (1) slim CD-ROM drive

Expansion Slots

All six PCI expansion slots on the H8DA8 (two 64-bit 133 MHz PCI-X slots, two

64-bit 66 MHz PCI-X slots and two 32-bit 33 MHz PCI slots) can be populated

with low proﬁ le cards in the SC823S-R500LP chassis.

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Serverboard

Model: H8DA8

Form Factor: Extended ATX

Dimensions: 12 x 13.05 in (305 x 332 mm)

Chassis

Model: SC823S-R500LP

Form Factor: 2U rackmount

Dimensions: (WxHxD) 16.7 x 89 x 25.6 in. (424 x 434 x 650 mm)

Weight

Gross (Bare Bone): 57 lbs. (25.6 kg.)

System Cooling

Four (4) 8-cm fans for chassis cooling (hot-swappable)

One (1) air shroud for 2U rackmount system

System Input Requirements

AC Input Voltage: 100-240V AC auto-range

Rated Input Current: 10A max.

Rated Input Frequency: 50 to 60 Hz

Power Supply

Rated Output Power: 500W (Model# SP502-2S, Part# PWS-0049)

Rated Output Voltages: +3.3V (21A), +5V (30A), -5V (0.8A), 12V

+5Vsb (2.0A)

ALL

(39A),

BTU Rating

2450 BTUs/hr (for rated output power of 500W)

Operating Environment

Operating Temperature: 10º to 35º C (50º to 95º F)

Non-operating Temperature: -40º to 70º C (-40º to 158º F)

Operating Relative Humidity: 8% to 90% (non-condensing)

Non-operating Relative Humidity: 5 to 95% (non-condensing)

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Supermicro AS-2020A-8R, 2020A-8R User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual