Supermicro SUPER P6DGH User Manual

SUPER P6DGH

USER’S AND BIOS

MANUAL

Revision 1.0

SUPER

®

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.

SUPERMICRO COMPUTER reserves the right to make changes to the product described in
this manual at any time and without notice. This product, including software, if any, and
the documentation may not, in whole or in part, be copied, photocopied, reproduced,
translated or reduced to any medium or machine without prior written consent.

IN NO EVENT WILL SUPERMICRO COMPUTER BE LIABLE FOR DIRECT, INDIRECT,
SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OR
INABILITY TO USE THIS PRODUCT OR DOCUMENTATION, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES. IN PARTICULAR, THE VENDOR SHALL NOT HAVE
LIABILITY FOR ANY HARDWARE, SOFTWARE OR DATA STORED OR USED WITH THE
PRODUCT, INCLUDING THE COSTS OF REPAIRING, REPLACING, INTEGRATING,
INSTALLING OR RECOVERING SUCH HARDWARE, SOFTWARE OR DATA.

Unless you request and receive written permission from SUPERMICRO COMPUTER, you
may not copy any part of this document.

Information in this document is subject to change without notice. Other products and
companies referred to herein are trademarks or registered trademarks of their respective
companies or mark holders.

Copyright © 1998 by SUPERMICRO COMPUTER INC.
All rights reserved.

Printed in the United States of America.

iii

Preface

About This Manual

This manual is written for system houses, experienced PC techni­cians and knowledgeable PC end users. It provides information for
the installation and use of the SUPER P6DGH motherboard. The
SUPER P6DGH supports Pentium II 233-450 MHz Slot 1 proces­sors.

The Pentium II processor with Dual Independent Bus Architecture is
housed in a new packaging technology called the Single Edge Con­tact Cartridge (S.E.C.C.). This new cartridge package and its asso­ciated "Slot 1" infrastructure will provide the headroom for future
high-performance processors.

Manual Organization

Chapter 1, Introduction, describes the features, specifications and
performance of the SUPER P6DGH system board, provides detailed
information about the chipset, and offers warranty information.

Refer to Chapter 2, Installation, for instructions on how to install the
Pentium II processor, the retention mechanism and the heat sink
support. This chapter also provides you with instructions for han­dling static-sensitive devices. Read this chapter when you want to
install or remove SIMM/DIMM memory modules and to mount the
system board in the chassis. Also refer to this chapter to connect
the floppy and hard disk drives, IDE interfaces, and the parallel and
serial ports as well as the cables for the power supply, the reset
cable, the Keylock/Power LED, the speaker and the keyboard.

Preface

If you encounter any problems, please see Chapter 3, Trouble­shooting, which describes troubleshooting procedures for the video,
the memory and the setup configuration stored in memory. Instruc­tions are also included for contacting a technical assistance sup­port representative, returning merchandise for service and visiting
our website for BIOS upgrades.

iv

SUPER P6DGH User’s Manual

See Chapter 4 for configuration data and the AMIBIOS features.
Chapter 5 covers the WinBIOS setup options.

Table of Contents

Table of Contents

Preface

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

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

Quick Reference Guide ............................................................................. ix

Chapter 1: Introduction

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

SUPER P6DGH Image ............................................................. 1- 4

SUPER P6DGH Motherboard Layout ..................................... 1-5

SUPER P6DGH Features ........................................................ 1-6

1-2 PC Health Monitoring ..................................................................... 1- 8

1-3 ACPI/PC 98 Features ................................................................... 1-11

1-4 Chipset Overview .......................................................................... 1-12

1-5 Wake-On-LAN ................................................................................ 1-13

1-6 Power Supply ................................................................................ 1-13

1-7 Winbond Super I/O Controller...................................................... 1-14

1-8 AIC-7896 SCSI Controller ............................................................. 1-15

1-9 Warranty, Technical Support and Service ................................. 1-16

Parts .......................................................................................... 1-16

BIOS .......................................................................................... 1-16

Labor ......................................................................................... 1-16

Returns ..................................................................................... 1-16

Chapter 2: Installation

2-1 Pentium II Processor Installation................................................. 2-1

OEM Pentium II and Heat Sink Support ................................ 2-5

Removing the Pentium II Processor...................................... 2- 7

2-2 Static-Sensitive Devices ................................................................ 2- 8

Precautions................................................................................ 2 -8

v

Unpacking .................................................................................. 2 -8

2-3 Changing the CPU Speed............................................................. 2- 8

2-4 Mounting the Motherboard in the Chassis ............................... 2-10

2-5 Connecting Cables and Jumpers.............................................. 2-10

Power Supply Connectors ..................................................... 2-11

PW_ON Connector................................................................... 2-13

Infrared Connector ................................................................... 2-13

Reset Header .......................................................................... 2-14

Keylock/Power LED Connector ............................................. 2-14

Hard Drive LED ....................................................................... 2-15

Speaker Connector................................................................. 2-15

AT Keyboard Connector ......................................................... 2-16

Universal Serial Bus ............................................................... 2-16

PS/2 Mouse Header ................................................................ 2-17

Serial Ports .............................................................................. 2-17

Power On/Off State ................................................................. 2-18

CMOS Clear ............................................................................. 2-18

Overheat LED .......................................................................... 2-19

Buzzer Overheat Notification ................................................. 2-19

Chassis Intrusion Connector................................................ 2-19

Wake-On-LAN .......................................................................... 2-20

Fan Connectors ...................................................................... 2-20

i960 Serial Port ....................................................................... 2-21

i960 Fail LED Indicator .......................................................... 2-21

i960 Initialization Modes ........................................................ 2-22

i960 Jumper Settings............................................................. 2-22

I2C Connector .......................................................................... 2-23

SLED (SCSI LED) Indicator ................................................... 2-23

I2O Debug LED (Optional) ...................................................... 2-24

AT/ATX Power Mode Jumper Settings ................................. 2-24

SCSI Termination Jumper Settings ..................................... 2-25

vi

SUPER P6DGH User’s Manual

Table of Contents

vii

SBLINK Connector .................................................................. 2-26

2- 6 Installing/Removing SIMM/DIMM Modules ................................. 2-27

SIMM/DIMM Module Installation............................................. 2-29

Removing DIMM Modules ...................................................... 2-29

Removing SIMM Modules ....................................................... 2-29

2-7 Connecting Parallel, FDD and HDD .......................................... 2-30

Parallel Port Connector.......................................................... 2-31

Floppy Connector .................................................................... 2-32

IDE Interfaces .......................................................................... 2-33

AGP Port Interface................................................................... 2-34

ULTRA II LVD SCSI Interfaces.............................................. 2-35

Wide SCSI Interface ............................................................... 2-36

Chapter 3: Troubleshooting

3-1 Troubleshooting Procedures ........................................................ 3-1

Before Power On ....................................................................... 3-1

Troubleshooting Flowchart...................................................... 3 -1

No Power .................................................................................... 3-2

No Video .................................................................................... 3 -2

Memory Errors ........................................................................... 3 -2

Losing the System's Setup Configuration ............................ 3- 7

3-2 Technical Support Procedures ..................................................... 3-3

3-3 Frequently Asked Questions ......................................................... 3-4

3-4 Returning Merchandise for Service.............................................. 3- 7

Chapter 4: AMIBIOS

4-1 Introduction ...................................................................................... 4-1

4-2 BIOS Features ................................................................................. 4 -2

BIOS Configuration Summary Screen ................................... 4-3

AMIBIOS Setup........................................................................... 4 -3

SUPER P6DGH User's Manual

viii

Chapter 5: Running Setup

5-1 Setup ................................................................................................. 5 -1

Standard Setup ......................................................................... 5-1

Advanced Setup ........................................................................ 5 -3

Chipset Setup............................................................................ 5-7

Power Management................................................................ 5-13

PCI/PnP Setup......................................................................... 5-15

Peripheral Setup ..................................................................... 5-18

5-2 Security Setup ............................................................................... 5-21

5-3 Utility Setup .................................................................................... 5-22

Anti-Virus .................................................................................. 5-22

Language ................................................................................. 5-22

5-4 Default Settings ............................................................................. 5-22

Optimal Default ....................................................................... 5-22

Fail-Safe Default ..................................................................... 5-22

Appendices:

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

Appendix B: AMIBIOS Post Diagnostic Error Messages ................... B -1

ix

Quick Reference Guide

Quick Reference Guide

Jumper Function Page

BZ_ON Buzzer Enable/Disable 2-18
JA5, J A6 , J A7 SCSI Terminations 2-24
JB1, JB2, JB3, JB4 CPU Speed Selection 2- 8
JBT1 CMOS Clear 2-17
JP11 External Bus Speed 2-8
JP20 ATX Power On/Off State 2-17
JP911 i960 Jumper 2-21
JP915 i960 Initialization Mode 2-21
JP917 i960 Jumper 2-21
JP918 i960 Reset Mode 2-21
JP919 i960 Retry Mode 2-21
JP920 i960 Disable Mode 2-21
JP921 i960 BIST Mode 2-21
JP924 i960 Jumper 2-21

Connector Function Page

AGP AGP Port 2-33
ID4 i960 Fail LED 2-20
J15, J16 IDE Interfaces 2-32
J17, J18 USB 2-15
J19 Parallel Port 2-30
J22 Floppy Connector 2-31
J36 (PWR_SEC) Secondary ATX Pwr Connector 2-11
J7 4 AT Keyboard 2-15
J940 I

2

C Connector 2-22
J943 i960 Serial Port 2-20
JF1 Hard Drive LED 2-14
JF1 Keylock/Power LED 2-13
JF1 Speaker 2-14

x

SUPER P6DGH User's Manual

JF2 IR Connector 2-12
JF2 ATX PW_ON 2-12
JF2 Reset Header 2-13
JL1 Chassis Intrusion 2-18
JOH1 Overheat LED 2-18
JP20, JP21 COM 1, COM 2 2-16
JP25 PS/2 Mouse Header 2-16
JT1, JT2 CPU1, CPU2 Fans 2-19
JT3 Thermal/Overheat Fan 2-19
PW1 Main AT Power Connector 2-10
PW2 Main ATX Power Connector 2-11
PW5 Secondary AT Pwr Connector 2-10
WOL Wake-On-LAN 2-19

Connector Function Page

1-1

Chapter 1: Introduction

Chapter 1

Introduction

1-1 Overview

The SUPER P6DGH supports dual Pentium II 233-450 MHz proces­sors. This motherboard is based on Intel’s 440GX chipset, which
enables a 100 MHz system bus speed, an Accelerated Graphics
Port (AGP), Wake-on-LAN, SDRAM, concurrent PCI and an Ultra
DMA 33 MB/s burst data transfer rate. In addition, the SUPER
P6DGH is I

2

O−ready with a built-in 66MHz Intel i960 RD I/O pro-

cessor.

The motherboard is Full AT size (13.2" x 12.2"). The SUPER P6DGH
provides 9 PCI slots, 2 ISA slots and an Accelerated Graphics Port.
It can accommodate a total of 2 GB registered DIMM or EDO sup­ported (66Mhz), or 1 GB SDRAM memory with 4 168-pin DIMM sock­ets.

AGP reduces contention between the CPU and I/O devices by broad­ening the bandwidth of graphics to memory. It delivers a maximum
of 532 MB/s 2x transfer mode, which is quadruple the PCI speed!

The I

2

O architecture of the SUPER P6DGH consists of a 66 MHz
i960 RD I/O processor, an 8 Mb Flash I/O BIOS and local IOP
memory (optional) of up to 64 MB in 2 72-pin SIMMS. The I

2

O archi­tecture provides a standard way to off-load the I/O functions from
the CPU, creating a direct I/O pipeline that no longer passes
through the host processor. Besides delivering increased system
performance, the I

2

O specification eliminates the need for different
drivers for each combination of operating system and SCSI or Net­work Interface Card. Because the drivers may be standardized and
not rewritten for new operating system releases, they can become
more highly optimized and robust to improve performance and reli­ability in mission-critical enterprise computing.

1-2

SUPER P6DGH User’s Manual

To attain portability across multiple operating systems and host
platforms, I

2

O drivers are divided into the OS Services Module (OSM)
and the Hardware Device Module (HDM). The first module inter­faces with the host operating system. The second interfaces with
the particular device, media or server managed by the driver. The
two modules interface with each other through a two-layered com­munications system. A Message Layer sets up a communications
session and a Transport Layer defines how information will be
shared. The Message Layer resides on the Transport Layer.

The i960 RD I/O processor (IU20) is a highly integrated, intelligent
I/O subsystem on a chip. Mode 3 is the default setting for normal
I

2

O operation. The i960 RD has two main functions. As a local
processor, it off-loads interrupt-intensive I/O tasks from the host
CPU. Its architecture is composed of a RISC core surrounded by
peripherals essential to the I/O function. The onboard PCI-to-PCI
bridge enables designers to connect I/O components directly to the
PCI bus and to also add additional PCI slots. The bridge improves
overall system performance by reducing bus traffic.

Wake-on-LAN allows for remote network management and configu­ration of the PC, even in off-hours when the PC is turned off. This
reduces the complexity of managing the network.

Other features that maximize simplicity in managing the computer
are PC 98-ready and support for an Advanced Configuration and
Power Interface (ACPI). With PC Health Monitoring, you can protect
your system from problems before they even occur.

Included in the I/O are 2 EIDE ports, a floppy port, an ECP/EPP
parallel port, a PS/2 mouse port, 2 serial ports (including an infra­red port) and 2 USB ports. The SUPER P6DGH has an onboard
Adaptec 7896 dual-channel Ultra II LVD (Low Voltage Device) SCSI
controller with a data transfer rate of up to 80 MB/s. This supports
the Adaptec ARO-1130CA2 RAIDport III card for increased I/O per­formance and fault tolerance. The boards come with a CD that
includes such software utilities as the SUPERMICRO PIIX4 Upgrade

1-3

Chapter 1: Introduction

Utility for Windows 95, a BIOS Flash Upgrade Utility, a DMI
Browser for Windows 95/98, a DMI Wizard, the SUPERMICRO SU­PER Doctor Utility ver 1.31a and Intel's LANDesk Client Manager
for Windows NT and Windows 95/98 (optional).

1-4

SUPER P6DGH User’s Manual

SUPER P6DGH

Figure 1-1. SUPER P6DGH Motherboard Image

1-5

Chapter 1: Introduction

Figure 1-2. P6DGH Motherboard Layout

J14 J13

CPU 1

JP21

J1

J940

1

J19

1

1

PW1

1

i960 MEM

J917

J4

J6

J7

J5

J918

JF1

JF2

AT POWER

A

T

X

P

O

W

E

R

PARALLEL

C

OM

2

COM1

ID4 ID3

RAID PORT III

PCI 2

J10

J11

PCI 3

J12

PCI 4

PCI 5

PIIX4E

J35

* J9 is PCI slave only

U14

UA1

7896
SCSI

WOL

PW2

PW5

POWER

+5V EXTRA

CPU 2

PWR_SEC

IDE 1

J15

1

ID

E

2

J16

1

J22

FLOPPY

JA

6

JA7

JA2

1

ULTRA II LVD/SE

ULTRA II LVD/SE

(CHANNEL A)

(CHANNEL B)

BZ_ON

JA3

JA1

U38

BIOS

443GX

AGP PORT

ULTRA SCSI

JATPWR

JP100

JP911

IU48

IJ6

IJ7

J943

IJ8 IJ22

JP924

JPWAKE

1

1

1

BT2

JBT1 JP20

J9

i960 RD

IU20

i960 BIOS

1

JP20

JP25

PS/2

MOUSE

11

1

USB

J17

J18

SBLINK

PW_ON

JP11

JA5

J2

JP917

JP921

JP920

JP919

JP918

JP915

JA4

JB2

JB3

JB4

1

PCI 1

CMOS

Clear

J74 AT KB

J36

®

B

a

n

k0

Bank1

B

ank2

Bank3

JB1

SPEAKER

KEY
LOCK

IDE
LED

IR
CON

RESET

U2

——–—— Primary Jumper Settings ————
BZ_ON: ON (default)
JA5: ON
JA6: ON
JA7: ON
JBT1: 1-2 (default)

2-3 CMOS Clear
JL1: OFF (default)
JP1 1 : 1-2 Auto (default)

2-3 66 Mhz

OFF 100 Mhz
JP2 0 : 1-2 PIIX4 CTL

2-3 Save PD State (default)
JP911: OFF
JP917: ON
JP924: 1-2
——–———————–———–——–——–—

JL1

JO

H

1

JT3

JT2

JT1

i960 Initialization Jumper Defaults (See page 2-21.)

JP915 OFF
JP918 ON (Mode 0)
JP919 ON (Mode 0)
JP920 OFF (Enable 960)
JP921 ON (Disable BIST)

——————–—–——————————————

CPU Core/

Bus Ratio

3.0

3.5

4.0

4.5

5.0

5.5

6.0

JB1
ON

OFF

ON

OFF

ON

OFF

ON

JB2
OFF
OFF

ON

ON
OFF
OFF

ON

JB3

ON

ON
OFF
OFF
OFF
OFF

ON

JB4

ON
ON
ON
ON
ON
ON

OFF

+

-

SLED

BATTERY

1

1

1-6

SUPER P6DGH User’s Manual

SUPER P6DGH Features

The following list covers the general features of the SUPER P6DGH.

CPU

• Dual Pentium II 233-450 MHz processors

I2O-Ready

• 66 MHz i960 RD I/O processor

• Up to 64 MB Local IOP memory

• 8 MB Flash I/O BIOS

Memory

• 2 GB Registered DIMM or EDO, or 1 GB SDRAM

• Error Checking and Correction and Parity Checking support

Chipset

• Intel 440GX

Expansion Slots

• 9 PCI slots

• 2 ISA slots

• 1 AGP slot

BIOS

• 2 MB AMI® Flash BIOS

• DMI 2.0, Plug and Play (PnP)

PC Health Monitoring (781D)

• Seven onboard voltage monitors for CPU cores, +3.3V, ±5V and
±12V

• Three fan-status monitors with firmware/software on/off control

• Chassis temperature monitor and control

• CPU fan auto-off in sleep mode

• System overheat control and alarm

• Chassis intrusion detection

• System resource alert

• Hardware BIOS virus protection

• Switching voltage regulators for the CPU core

• SUPERMICRO SUPER Doctor and Intel LANDesk Client

1-7

Chapter 1: Introduction

Manager (LDCM) support

ACPI/PC 98 Features

• Microsoft OnNow

• Slow blinking LED for sleep-state indicator (ATX power only)

• BIOS support for USB keyboard

• Real-time clock wake-up alarm (ATX power only)

• Main switch override mechanism (ATX power only)

• External modem ring-on (wake-on-ring) (ATX power only)

Onboard I/O

• Two 68-pin 16-bit Ultra II LVD/SE SCSI connectors and one 50­pin 8-bit Ultra SCSI connector

• RAIDport for Adaptec ARO-1130CA2 RAIDport III card

• Two EIDE Bus Master interfaces that support Ultra DMA/33 and
Mode 4

• One floppy interface

• Two UART 16550A serial ports

• One parallel port that supports both EPP (Enhanced Parallel
Port) and ECP (Extended Capabilities Port)

• PS/2 mouse port

• Infrared port

• Two USB ports

CD Utilities

• Intel LANDesk Client Manager for Windows NT® and Windows

®

95 (optional)

• PIIX4 Upgrade Utility for Windows 95

• BIOS Flash Upgrade Utility

• SUPER Doctor Utility

• SCSI Utility, manual and driver

Dimensions

• Full AT size (13.2" x 12.2")

1-8

SUPER P6DGH User’s Manual

1-2 PC Health Monitoring

This section describes the PC health monitoring features of the
SUPER P6DGH. It has an onboard Winbond 781D System Hard­ware Monitor chip that supports PC health monitoring.

Seven Onboard Voltage Monitors for the CPU Cores,
+3.3V,

±±

±±

±5V,

and

±±

±±

±12V

The onboard voltage monitors scan seven voltages every second.
When running SUPER Doctor or Intel LDCM, once a voltage be­comes unstable, a warning or an error message will be reported
on-screen. Users can adjust the threshold of the monitored voltage
to determine the sensitivity of the voltage monitor.

Three Fan-Status Monitors with Firmware/Software On/
Off Control

The PC health monitor can check the RPM status of the cooling
fans. The onboard 3-pin CPU fans are controlled by the ACPI BIOS
and the ACPI-enabled operating system. The thermal fan is con­trolled by the overheat detection logic.

Chassis Temperature Control

The thermal control sensor monitors the real-time chassis tem­perature. It will turn on the backup fan whenever the chassis tem­perature exceeds a user-defined threshold. The overheat circuitry
runs independently from the CPU. It can still monitor for overheat
conditions even if the CPU is in sleep mode. Once it detects that
the chassis temperature is too high, it will automatically turn on the
backup fan and trigger the overheat LED (JOH1) and the overheat
buzzer (BZ_ON). The onboard chassis thermal circuitry can monitor
the overall system temperature and alert users when the chassis
temperature gets too high.

1-9

Chapter 1: Introduction

CPU Fan Auto-Off in Sleep Mode

The CPU fan(s) runs when the power is on, but can be turned off
when the CPU is in sleep mode. When in sleep mode, the CPU
does not run at full power and therefore generates less heat. For
power saving purposes, the user has the option of shutting down
the CPU fan(s) at such times.

System Overheat Alarm and LED

This feature is available when used with SUPERMICRO's SUPER
Doctor Utility. The program will generate a beep sound via the
speaker when it detects a system overheat condition. The overheat
condition can be defined by the user. The program can also give an
on-screen indication when the system overheats.

Chassis Intrusion Detection

The chassis intrusion circuitry can detect unauthorized intrusion to
the system. The chassis intrusion connector is located on JL1.
Attach a microswitch to JL1. When the microswitch is closed, it
means that the chassis has been opened. The circuitry will then
alert the user with a warning message when the system is turned
on. This circuitry uses the onboard battery for power.

System Resource Alert

This feature is available when used with the Intel LANDesk Client
Manager. It is used to notify the user of certain system events. For
example, if the system is running low on virtual memory, there might
not be enough hard drive space to save the data. LDCM will then
alert the user of the potential problem.

1-10

SUPER P6DGH User’s Manual

Hardware BIOS Virus Protection

The system BIOS is protected by hardware so that no virus can
infect the BIOS area. The user can only change the BIOS content
through the flash utility provided by SUPERMICRO. This feature can
prevent viruses from infecting the BIOS area and destroying valu­able data.

Switching Voltage Regulator for the CPU Core

The switching voltage regulator for the CPU core can support cur­rent up to 20A with the auto-sensing voltage ID ranging from 1.8V to

3.5V. This will allow the regulator to run cooler and thus make the
system more stable.

Intel LANDesk Client Manager (LDCM) Support

As the computer industry grows, PC systems have become more
complex and harder to manage. Historically, only experts have
been able to fully understand and control these complex systems.
Today's users want manageable systems that they can interact with
automatically. Client Manager enables both administrators and cli­ents to:

• Review system inventory

• View DMI-compliant component information

• Back up and restore system configuration files

• Troubleshoot

• Receive notifications of system events

• Transfer files to and from client workstations

• Remotely reboot client workstations

1-11

Chapter 1: Introduction

1-3 ACPI/PC 98 Features

ACPI stands for Advanced Configuration and Power Interface. The
ACPI specification defines a flexible and abstract hardware inter­face that provides a standard way to integrate power management
features throughout a PC system, which includes its hardware, the
operating system and application software. This enables the sys­tem to automatically turn on and off peripherals such as CD-ROMs,
network cards, hard disk drives and printers. This also includes
consumer devices connected to the PC such as VCRs, TVs, tele­phones and stereos.

In addition to enabling operating system-directed power manage­ment, ACPI provides a generic system event mechanism for Plug
and Play and an operating system-independent interface for con­figuration control. ACPI leverages the Plug and Play BIOS data
structures while providing an architecture-independent processor
implementation that is compatible with both Windows 95 and Win­dows NT.

Microsoft OnNow

The OnNow design initiative is a comprehensive, system-wide ap­proach to system and device power control. OnNow is a term for a
PC that is always on but appears to be off and that can respond
immediately to user or other requests.

Slow Blinking LED for Sleep-State Indicator

When the CPU goes into a sleep state, the power LED will start
blinking to indicate that the CPU is in sleep mode. When the user
presses any key, the CPU will wake-up and the LED will automati­cally stop blinking and remain on.

1-12

SUPER P6DGH User’s Manual

BIOS Support for USB Keyboard

If the USB keyboard is the only keyboard in the system. It will work
like a normal keyboard during system boot-up.

Real-Time Clock Wake-up Alarm (ATX power only)

Although the PC is perceived to be off when not in use, it is still
capable of responding to wake-up events according to a scheduled
date and time. The user can set a timer to wake-up or shutdown
the system at some predetermined time.

Main Switch Override Mechanism (ATX power only)

When an ATX power supply is used, the power button can function
as a system suspend button. When the user presses the power
button, the system will enter a SoftOff state. The monitor will be
suspended and the hard drive will spin down. Pressing the power
button again will cause the whole system to wake-up. During the
SoftOff state, the ATX power supply provides power to keep the re­quired system circuitry alive. If the system malfunctions and you
want to turn off the power, just press and hold the power button for
approximately 4 seconds. The power will turn off and enter the
SoftOff state.

External Modem Ring-On (ATX power only)

Wake-up events can be triggered by a device (such as an external
modem ringing) when BIOS enables this function and the system is
in the SoftOff state.

1-4 Chipset Overview

The 440GX chipset developed by Intel is the ultimate processor plat­form targeted for 3D graphics and multimedia applications. Along
with System-to-PCI bridge integrated with optimized DRAM control-

1-13

Chapter 1: Introduction

ler and data path, the chipset supports the Accelerated Graphics
Port (AGP) interface. AGP is a high performance, component level
interconnect targeted at 3D applications and is based on a set of
performance enhancements to PCI. The I/O subsystem portion of
the 440GX platform is based on the PIIX4, a highly integrated ver­sion of Intel's PCI-to-ISA bridge family.

The PCI/AGP and system bus interface controller (82443GX) sup­ports up to two Pentium II processors. It provides an optimized 72­bit DRAM interface (64-bit data plus ECC). This interface supports

3.3V DRAM technologies. The controller provides the interface to a

PCI bus operating at 33 MHz. This interface implementation is com­pliant with the PCI Rev 2.1 Specification. The AGP interface is
based on AGP Specification Rev 1.0. It can support up to 133 MHz
(532 MB/s) data transfer rates.

1-5 Wake-On-LAN (WOL) (ATX power only)

Wake on LAN is defined as the ability of a management application
to remotely power up a computer which is powered off. Remote PC
setup, updates and asset tracking can occur after-hours and on
weekends, so daily LAN traffic is kept to a minimum and users are
not interrupted.

The motherboard has a 3-pin header (WOL) that connects to the 3­pin header on the Network Interface Card (NIC), which has WOL
capability.

1-6 Power Supply

As with all computer products, a stable power source is necessary
for proper and reliable operation. It is even more important for
Pentium II processors that have high CPU clock rates of 300 MHz
and above.

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SUPER P6DGH User’s Manual

The SUPER P6DGH accommodates both AT and ATX power sup­plies. Although most power supplies generally meet the specifica­tions required by the CPU, some are inadequate. To obtain the
highest system reliability, be certain that your AT power supply pro­vides +5 VDC with a voltage range between +4.95 VDC (minimum)
and +5.25 VDC (maximum) and a current rating of 25 A or above.

It is highly recommended that you use a high quality power supply.
Additionally, in areas where noisy power transmission is present,
you may choose to install a line filter to shield the computer from
noise. It is recommended that you also install a power surge pro­tector to help avoid problems caused by power surges. For serious
workstation/server applications, it is highly recommended that us­ers employ the secondary power connector PW5 (for AT power) or
J36 (for ATX power) to ensure balanced power distribution.

1-7 Winbond Super I/O Controller

The disk drive adapter functions of the Super I/O chip include a
floppy disk drive controller that is compatible with industry standard
82077/765, a data separator, write pre-compensation circuitry, de­code logic, data rate selection, a clock generator, drive interface
control logic and interrupt and DMA logic. The wide range of func­tions integrated into the Super I/O chip greatly reduces the number
of components required for interfacing with floppy disk drives. The
Super I/O supports four 360 K, 720 K, 1.2 M, 1.44 M or 2.88 M disk
drives and data transfer rates of 250 Kb/s, 500 Kb/s or 1 Mb/s.

It also provides two high-speed serial communication ports
(UARTs), one of which can support serial infrared communication.
Each UART includes a 16-byte send/receive FIFO, a programmable
baud rate generator, complete modem control capability and a pro­cessor interrupt system. Both UARTs provide legacy speed with
baud rates up to 115.2 Kbps as well as advanced speed with baud
rates of 230 K, 460 K, or 921 Kbps, which support higher speed
modems.

1-15

Chapter 1: Introduction

1-8 AIC-7896 MultiChannel

TM

Single-Chip

UltraSCSI Controller

The Super I/O controller provides support for one PC-compatible
printer port (SPP), Bidirectional Printer Port (BPP), Enhanced Paral­lel Port (EPP) or Extended Capabilities Port (ECP). Also available,
through the printer port interface pins, are Extension FDD and Ex­tension 2FDD Modes, allowing one or two external floppy disk drives
to be connected.

The SUPER P6DGH has an onboard Adaptec SCSI controller, which
is 100% compatible with all major operating and hardware plat­forms. PCI 2.1 and SCAM Level 1 compliance are assured.

Two independent Ultra II LVD SCSI channels provide a per channel
data transfer rate of 80 MB/s. Connectors include two 68-pin 16-bit
Ultra Wide SCSI connectors (JA1 and JA2) and one 50-pin 8-bit
Ultra SCSI connector (JA3). The AIC-7896 Ultra II SCSI chip con­nects to a 32-bit PCI bus. You can connect up to 15 devices (seven
8-bit internal and eight 16-bit internal or external SCSI devices, or
15 Wide internal and external SCSI devices).

The Super I/O provides functions that comply with ACPI (Advanced
Configuration and Power Interface), which includes support for
legacy and ACPI power management through an SMI or SCI func­tion pin. It also features auto power management to reduce power
consumption.

The Super I/O complies with the Microsoft PC97 Hardware Design
Guide. IRQs, DMAs and I/O space resources can flexibly adjust to
meet ISA PnP requirements. Moreover, it meets the specifications
of PC97's requirement regarding power management: ACPI and
DPM (Device Power Management).

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SUPER P6DGH User’s Manual

The AIC-7896 consolidates the functions of two SCSI chips to elimi­nate the need of a PCI bridge. Reducing PCI bus loading enables
system capabilities to be expanded with additional PCI devices.

When Fast SCSI devices are connected, the total length of all
cables (internal and external) must not exceed 3 meters (9.8 ft) to
ensure reliable operation. If no Fast SCSI devices are connected,
the total length of all cables must not exceed 6 meters (19.7 ft).

1-9 Warranty, Technical Support and Service

The manufacturer will repair or exchange any unit or parts that fail
due to manufacturing defects. This warranty covers the cost of parts
for one year (12 months) and the cost of labor for two years (24
months) from the original invoice date of purchase.

Warranty Terms and Conditions

Super Micro Computer, Inc. warrants its products to be free from
defects in material and workmanship. The warranty period is for
two years (24 months) beginning from the original purchase date.
Super Micro shall, at our option and cost, repair or replace the de­fective product if the product is returned within the applicable war­ranty period and if the product is found by Super Micro to be defec­tive within the terms of this warranty. Before presenting any
motherboard for warranty service, the customer must first remove
the CPU(s), memory or other peripherals.

This warranty shall not apply to any failure or defect caused by mis­use, abnormal or unusually heavy use, neglect, abuse, alteration,
improper installation, unauthorized repair or modification, improper
testing, or accidents or causes external to the product such as, but
not limited to, excessive heat or humidity, power failure, power
surges or acts of God/Nature. Super Micro makes no warranty with
respect to (i) expendable components, (ii) any software products

1-17

Chapter 1: Introduction

supplied by us, (iii) any experimental or developmental products
and (iv) products not manufactured by us; all of which components,
software and products are provided "AS-IS."

This warranty is in lieu of any other warranty expressed or implied.
In no event will Super Micro be held liable for incidental or conse­quential damages, such as loss of revenue or loss of business
arising from the purchase of Super Micro products.

Returns

If you must return products for any reason, refer to the section in
Chapter 3 of this manual entitled “Returning Merchandise for Ser­vice.”

2-1

Chapter 2: Installation

Chapter 2

Installation

2-1 Pentium II Processor Installation

1. Check the Intel-boxed processor kit for the following items: the

processor with the fan/heat sink attached, two black plastic pegs,
two black plastic supports and one power cable.

2. Install the retention mechanism attachment mount under the

motherboard. Do this before mounting the motherboard in the
chassis. Do not screw it too tight. Mount the two black plastic pegs
on the motherboard (Figure 2.1). These pegs will be used to attach
the fan/heat sink supports. Notice that one hole and the base of
one peg are larger than the other hole and peg base. Push each
peg into its hole firmly until you hear it "click" into place.

Figure 2-1. Mounting the Pegs

Retention
Mechanism

Large peg and hole

2-2

SUPER P6DGH User’s Manual

3. Slide a black plastic support onto each end of the fan/heat sink
making sure that the hole and clip are on the outside edge of the
support. If the supports are reversed, the holes will not line up with
the pegs on the motherboard. Slide each support toward the center
of the processor until the support is seated in the outside groove in
the fan housing.

Figure 2-2. Support for Fan/Heat Sink

Top of processor

Groove in fan housing

Hole and clip on outside edge

2-3

Chapter 2: Installation

4. Slid the clip (A) onto each support toward the processor, expos-

ing the hole that will fit over the peg on the motherboard. Push the
latches (B) on the processor toward the center of the processor
until they click into place.

5. Hold the processor so that the fan shroud is facing toward the

pegs on the motherboard. Slide the processor (C) into the reten­tion mechanism and slide the supports onto the pegs. Ensure that
the pegs on the motherboard slide into the holes in the heat sink
support and that the alignment notch in the SEC cartridge fits over
the plug in Slot 1. Push the processor down firmly, with even pres­sure on both sides of the top, until it is seated.

Figure 2-3. Retention Mechanism

B

C

A

Do not screw in too tight!