Supero Super 370SBA, Super 370SBM, Super 370SLA, Super 370SLM User's And Bios Manual

®

SUPER 370SBA

SUPER 370SBM

SUPER 370SLA

SUPER 370SLM

USER’S AND BIOS

MANUAL

Revision 1.1

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.

Please Note: For the
most up-to-date version of this manual, please see our web site at
www.supermicro.com.

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 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 THE 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 © 1999 by SUPERMICRO COMPUTER INC.
All rights reserved.

Printed in the United States of America.

Preface

About This Manual

This manual is written for system houses, PC technicians and
knowledgeable PC end users. It provides information for the installation and
use of the SUPER 370SBA/370SBM/370SLA/370SLM motherboard. SUPER
370SBA/370SBM/370SLA/370SLM motherboards support Intel® Celeron™
333/366 MHz or higher PPGA processors.

The addition of the Intel Celeron processor family with the Dual Independent Bus
Architecture is housed in a package called the Plastic Pin Grid Array (PPGA).
This package and its associated "370-pin socket" infrastructure will provide the
headroom for future low-cost, high-performance processors.

Manual Organization

Chapter 1, Introduction, describes the features, specifications and performance
of the SUPER 370SBA/370SBM/370SLA/370SLM system board, provides de­tailed information about the chip set and offers warranty information.

Refer to Chapter 2, Installation, for instructions on how to install the Celeron
PPGA processor and the heat sink support. This chapter provides you with
instructions for handling static-sensitive devices. Read this chapter when you
want to install DIMMs and to mount the system board in the chassis. Also refer
to this chapter to connect the floppy and hard disk drives, IDE interfaces, the
parallel port and the serial ports, as well as the cables for the power supply, the
reset button, the Keylock/Power LED, the speaker and the keyboard.

If you encounter any problems, please see Chapter 3, Troubleshooting, which
describes troubleshooting procedures for the video, memory and the setup con­figuration stored in memory. For quick reference, a general FAQ (Frequently
Asked Questions) section is provided. Instructions are also included for techni­cal support procedures, for returning merchandise for service and for BIOS up­grades using our BBS#.

See Chapter 4 for configuration data and BIOS features.
Chapter 5 has information on running setup and includes default settings for

Standard Setup, Advanced Setup, Chipset function, Power Management, PCI/
PnP Setup, and Peripheral Setup.

iii

Preface

Appendix A offers information on BIOS error beep codes and messages.
Appendix B shows post diagnostic error messages.

iv

Preface

Table of Contents

Table of Contents

v

Preface

About This Manual................................................................................................. ii i

Manual Organization.............................................................................................. ii i

Jumper Quick Reference....................................................................................... viii

Front Control Panel Connector.............................................................................. ix

Chapter 1: Introduction

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

SUPER 370SBA Image .........................................................................1-2

SUPER 370SBA Motherboard Layout .................................................1-3

SUPER 370SBM Image.........................................................................1-4

SUPER 370SBM Motherboard Layout .................................................1-5

SUPER 370SLA Image..........................................................................1-6

SUPER 370SLA Motherboard Layout ..................................................1-7

SUPER 370SLM Image .........................................................................1-8

SUPER 370SLM Motherboard Layout .................................................1-9

System Block Diagram .......................................................................1-10

1-2 Motherboard Features...............................................................................1-11

1-3 Chip Set Overview.....................................................................................1-13

440BX Chip Set.................................................................................... 1-13

440LX Chip Set .................................................................................... 1-13

1- 4 PC Health Monitoring ...............................................................................1-14

Onboard Voltage Monitors ..................................................................1-14

Three-Fan Status Monitors .................................................................1-14

Environmental Temperature Control ...................................................1-14

CPU Fan Auto-Off in Sleep Mode ...................................................... 1-14

CPU Overheat LED and Thermal Fan Control ..................................1-15

Chassis Intrusion Detection................................................................1-15

System Resource Alert .......................................................................1-15

Hardware BIOS Virus Protection ........................................................1-15

Switching Voltage Regulator for the CPU Core ................................1-15

Intel LANDesk® Client Manager (LDCM) Support............................1-16

1-6 ACPI/PC 98 Features ............................................................................... 1-16

Microsoft OnNow..................................................................................1-16

Slow Blinking LED for Suspend State Indicator...............................1-17

BIOS Support for USB Keyboard .......................................................1-17

Real-Time Clock Wake-up Alarm .......................................................1-17

Main Switch Override Mechanism ...................................................... 1-17

SUPER 370SBA/370SBM/370SLA/370SLM User’s Manual

External Modem Ring-on..................................................................... 1-17

Wake-On-LAN (WOL) .........................................................................1-17

1- 7 Power Supply Requirements.................................................................... 1-18

1- 8 Super I/O....................................................................................................1-18

Chapter 2: Installation

2- 1 Static-Sensitive Devices.............................................................................2-1

Precautions.............................................................................................2-1

Unpacking ...............................................................................................2-1

2-2 Celeron PPGA Processor Installation ......................................................2-2

2- 3 Explanation and Diagram of Jumper/Connector.......................................2-3

2-4 Mounting the Motherboard in the Chassis ...............................................2-3

2- 5 Connecting Cables......................................................................................2-3

ATX Power Supply Connector...............................................................2-3

Infrared Connector .................................................................................. 2-4

PW_ON Connector.................................................................................2-4

Reset Connector ....................................................................................2-4

Hard Drive LED Connector ....................................................................2-4

Keylock/Power LED Connector .. . ... . ... . . ... . ... . . ... . ...................................2-5

Speaker Connector ................................................................................2-5

ATX PS/2 Keyboard and PS/2 Mouse Ports ...................................... 2-5

Universal Serial Bus ..............................................................................2-5

ATX Serial Ports.....................................................................................2-6

CMOS Clear ...........................................................................................2-6

Wake-on-LAN..........................................................................................2-6

Fan Connectors......................................................................................2-6

Chassis Intrusion ................................................................................... 2-7

Keyboard Wake-Up ................................................................................2-7

Overheat LED .........................................................................................2-7

Bus Speed ..............................................................................................2-7

2- 6 Installing DIMMs..........................................................................................2-8

2-7 Connecting Parallel, Floppy and Hard Disk Drives .................................2-9

Parallel Port Connector ....................................................................... 2-10

Floppy Connector .................................................................................2-10

IDE Interfaces....................................................................................... 2-10

AGP Port ..............................................................................................2-11

Chapter 3: Troubleshooting

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

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

vi

Table of Contents

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

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

Memory Error..........................................................................................3-2

Losing the System’s Setup Configuration ...........................................3-2

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

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

3- 4 Returning Merchandise for Service ...........................................................3-6

Chapter 4: AMIBIOS

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

System BIOS ..........................................................................................4-1

Configuration Data..................................................................................4-1

How Data Is Configured.........................................................................4-1

POST Memory Test ...............................................................................4-1

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

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

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

Chapter 5: Running Setup

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

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

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

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

Power Management .............................................................................5-12

PCI/PnP Setup .....................................................................................5-14

Peripheral Setup...................................................................................5-17

5-2 Security Setup ..........................................................................................5-20

Supervisor/User ....................................................................................5-20

5-3 Utility Setup...............................................................................................5-21

Anti-Virus ..............................................................................................5-21

Language...............................................................................................5-21

5- 4 Default Setting...........................................................................................5-21

Optimal Default.....................................................................................5-21

Fail-Safe Default...................................................................................5-21

Appendices:

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

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

vii

SUPER 370SBA/370SBM/370SLA/370SLM User’s Manual

viii

Jumpers Quick Reference

370SBA/
370SLA/

370SBM 370SLM

Jumpers Jumpers Function Page
JBT1 JBT1 CMOS Clear 2-6

JPWAKE JPWAKE Keyboard Wake-Up 2-7
JP11 JP11 Bus Speed 2-7

Connectors Connectors Function Page
J8 J8 AGP Port 2-11

J15, J16 J15, J16 IDE Connectors 2-10
J17, J18 J17, J18 USB Ports 2-5
J19 J19 Parallel Port 2-10
J20 J20 COM1 2-6
J21 J21 COM2 2-6
J22 J22 Floppy Connector 2-10
J32 J32 ATX Power Connector 2-3
J34 J34 PS/2 Keyboard and Mouse 2-5
JF1: 1-4 JF1: 1-4 IDE LED 2-4
JF1: 5-7 JF1: 5-7 Power ON LED 2-5
JF1: 8-9 JF1: 8-9 Keylock 2-5
JF1: 10-13 JF1: 10-13 Speaker 2-5
JF2: 1-5 JF2: 1-5 IR (Infrared) Connector 2-4
JF2: 9-10 JF2: 7-8 Power ON Switch 2-4
JF2: 12-13 JF2: 10-11 Reset Switch 2-4
JOH: 1-2 JOH: 1-2 Overheat LED 2-7
JL1 JL 1 Chassis Intrusion Switch 2-7
JT1 JT1 CPU Fan 2-6
JT2 J T2 Chassis Fan 2-6
JT3 J T3 Thermal Control Fan 2-6
WO L W OL Wake-on-LAN 2-6

ix

Quick Reference

Front Control Panel Connector

Please see pages 2-4 through 2-7 for pin definitions.

IDE
LED

Keyboard
Lock

Speaker

IR Con

Power On

X

Reset

JF2 JF1

X

Power
LED

11

IDE
LED

Keyboard
Lock

Speaker

IR Com

Power On

Reset

JF1

X

X

1

JF2

1

Overheat LED

Power
LED

Keylock

JF1

JF2

JOH

x

SUPER 370SBA/370SBM/370SLA/370SLM User’s Manual

Notes

Chapter 1: Introduction

1-1

Chapter 1

Introduction

1-1 Overview

The SUPER 370SBA/370SBM/370SLA/370SLM motherboards support single
Intel® Celeron™ 333/366 MHz or higher Plastic Pin Grid Array (PPGA) proces­sors at a 66 MHz front side bus speed. (The 100 MHz FSB speed is only
available when using 100 MHz FSB Celeron processors. ) The SUPER 370SBA
and 370SBM motherboards are based on Intel’s 440BX chip set, and the SUPER
370SLA and 370SLM motherboards are based on Intel’s 440LX chip set. Both
440BX and 440LX chip sets enable an Accelerated Graphics Port (AGP), Wake­on-LAN™, synchronous DRAM (SDRAM), concurrent PCI and dual IDE channels
that support Ultra DMA 33 MB/s burst data transfer rate.

The SUPER 370SBA and 370SLA are ATX form factor motherboards and have 4
PCI and 3 ISA slots. The SUPER 370SBM and 370SLM are microATX form factor
motherboards and have 3 PCI and 1 ISA slots. All four motherboards have an
AGP port, and can accommodate a total of 384 MB PC100 unbuffered SDRAM
memory with three 168-pin dual inline memory module (DIMM) sockets. The
SUPER 370SBA and 370SBM motherboards can support the 100 MHz front side
bus speed for future Celeron PPGA upgrades, and its 440BX chip set allows you
to install up to 768 MB of PC100 registered SDRAM. The SUPER 370SLA and
370SLM motherboards support the 66 MHz system bus speed only,
and can accept either PC66 EDO or PC100 SDRAM DIMMs.

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

Wake-On-LAN (WOL) 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 customer satisfaction and simplicity in managing
the computer are its support for the PC 98 and the Advanced Configuration and
Power Interface (ACPI) standards. With PC Health Monitoring, you can protect
your system from problems before they even occur.

All motherboards include the following I/O: 2 IDE ports, a floppy port, an ECP/
EPP supported parallel port, PS/2 mouse and PS/2 keyboard ports, 2 serial
ports, an infrared port and 2 USB ports.

Chapter 1: Introduction

SUPER 370SBA/370SBM/370SLA/370SLM User's Manual

1-2

SUPER 370SBA

Figure 1-1. SUPER 370SBA Motherboard Image

Chapter 1: Introduction

1-3

Figure 1-2. SUPER 370SBA Motherboard Layout

12 inches

7 inches

Super

l

370SBA

ISA 1

ISA 2

ISA 3

PCI 1

PCI 2

PCI 3

PCI 4

AGP

Super

I/O

DIMM - BANK 2

DIMM - BANK 1

DIMM - BANK 0

IDE 1

IDE 2 Floppy

Battery

1

1 1

440BX

Chipset

1

PIIX4EB

1

Keybd

---------

Mouse

USB

COM 1COM 2

LPT 1

JP11

JPWAKE (see Note 1)

JT1 - CPU FAN

JOH (OVERHEAT LED)
RESET SW
POWER ON LED

IR CON (INFRARED PORT)

SPEAKER

KEYLOCK

IDE LED

JL1 - CHASSIS

INTRUSION SW

JBT1 - CMOS CLEAR

JT3 - THERMAL CTL FAN

JT2 - CHASSIS FAN

(see Note 2)

BIOS

ATX Power

Celeron

Processor

(PPGA package)

1

Jumper Settings

JPWAKE: 1-2 Disable Keyboard Wake-Up (default)

2-3 Enable Keyboard Wake-Up (see Note 1)

JP11: 1-2 Auto Select Bus Speed

2-3 66MHz Bus Speed
OFF 100MHz Bus Speed

JBT1: 1-2 Normal

2-3 CMOS Clear

Notes

1

To enable Keyboard Wake-Up, set
JPWAKE jumper to 2-3

and

ENABLE
Keyboard Wake-Up function in
system BIOS.

2

Chassis Intrusion Switch (JL1) is
normally open. If connected to
chassis switch, removing chassis
cover causes switch input to close.

3

No CPU jumper settings are required
for the Celeron (333/366 MHz)
processor. The settings are preset
(fixed bus ratio) in the processor.

WOL

1

1

1

1

SUPER 370SBA/370SBM/370SLA/370SLM User's Manual

1-4

SUPER 370SBM

Figure 1-3. SUPER 370SBM Motherboard Image

Chapter 1: Introduction

1-5

Figure 1-4. SUPER 370SBM Motherboard Layout

9.6 inches

7.25 inches

Super

l

370SBM

ISA 1

PCI 1

PCI 2

PCI 3

AGP

Super

I/O

DIMM - BANK 2

DIMM - BANK 1

DIMM - BANK 0

IDE 1

IDE 2 Floppy

Battery

1

1 1

440BX

Chipset

1

PIIX4EB

1

Keybd

---------

Mouse

USB

COM 1COM 2

LPT 1

JP11

JPWAKE (see Note 1)

JT1 - CPU FAN

JL1 - CHASSIS

INTRUSION SW

JBT1 - CMOS CLEAR

JT3 - THERMAL CTL FAN

JT2 - CHASSIS FAN

Jumper Settings

JPWAKE: 1-2 Disable Keyboard Wake-Up (default)

2-3 Enable Keyboard Wake-Up (see Note 1)

JP11: 1-2 Auto Select Bus Speed

2-3 66MHz Bus Speed
OFF 100MHz Bus Speed

JBT1: 1-2 Normal

2-3 CMOS Clear

Notes

1

To enable Keyboard Wake-Up, set
JPWAKE jumper to 2-3

and

ENABLE
Keyboard Wake-Up function in
system BIOS.

2

Chassis Intrusion Switch (JL1) is
normally open. If connected to
chassis switch, removing chassis
cover causes switch input to close.

3

No CPU jumper settings are required
for the Celeron (333/366 MHz)
processor. The settings are preset
(fixed bus ratio) in the processor.

(see Note 2)

BIOS

ATX Power

Celeron

Processor

(PPGA package)

1

1

1

1

1

WOL

JF1

JF2

IDE

LED

Keylock

Speaker

IR Con

Power On

X

Reset

JF2JF1

X

Power

LED

11

JOH - OVERHEAT LED

1

SUPER 370SBA/370SBM/370SLA/370SLM User's Manual

1-6

SUPER 370SLA

Figure 1-5. SUPER 370SLA Motherboard Image

Chapter 1: Introduction

1-7

Figure 1-6. SUPER 370SLA Motherboard Layout

12 inches

7 inches

Super

l

370SLA

ISA 1

ISA 2

ISA 3

PCI 1

PCI 2

PCI 3

PCI 4

AGP

Super

I/O

DIMM - BANK 2

DIMM - BANK 1

DIMM - BANK 0

IDE 1

IDE 2 Floppy

Battery

1

1 1

440LX

Chipset

1

PIIX4EB

1

Keybd

---------

Mouse

USB

COM 1COM 2

LPT 1

JPWAKE (see Note 1)

JT1 - CPU FAN

JOH (OVERHEAT LED)
RESET SW
POWER ON LED

IR CON (INFRARED PORT)

SPEAKER

KEYLOCK

IDE LED

JL1 - CHASSIS

INTRUSION SW

JBT1 - CMOS CLEAR

JT3 - THERMAL CTL FAN

JT2 - CHASSIS FAN

(see Note 2)

BIOS

ATX Power

Celeron

Processor

(PPGA package)

1

Jumper Settings

JPWAKE: 1-2 Disable Keyboard Wake-Up (default)

2-3 Enable Keyboard Wake-Up (see Note 1)

JBT1: 1-2 Normal

2-3 CMOS Clear

Notes

1

To enable Keyboard Wake-Up, set
JPWAKE jumper to 2-3

and

ENABLE
Keyboard Wake-Up function in
system BIOS.

2

Chassis Intrusion Switch (JL1) is
normally open. If connected to
chassis switch, removing chassis
cover causes switch input to close.

3

No CPU jumper settings are required
for the Celeron (333/366 MHz)
processor. The settings are preset
(fixed bus ratio) in the processor.

WOL

1

1

1

SUPER 370SBA/370SBM/370SLA/370SLM User's Manual

1-8

SUPER 370SLM

Figure 1-7. SUPER 370SLM Motherboard Image

Chapter 1: Introduction

1-9

Figure 1-8. SUPER 370SLM Motherboard Layout

9.6 inches

7.25 inches

Super

l

370SLM

ISA 1

PCI 1

PCI 2

PCI 3

AGP

Super

I/O

DIMM - BANK 2

DIMM - BANK 1

DIMM - BANK 0

IDE 1

IDE 2 Floppy

Battery

1

1 1

440LX

Chipset

1

PIIX4EB

1

Keybd

---------

Mouse

USB

COM 1COM 2

LPT 1

JPWAKE (see Note 1)

JT1 - CPU FAN

JOH (OVERHEAT LED)
RESET SW
POWER ON LED

IR CON (INFRARED PORT)

SPEAKER

KEYLOCK

IDE LED

JL1 - CHASSIS

INTRUSION SW

JBT1 - CMOS CLEAR

JT3 - THERMAL CTL FAN

JT2 - CHASSIS FAN

Jumper Settings

JPWAKE: 1-2 Disable Keyboard Wake-Up (default)

2-3 Enable Keyboard Wake-Up (see Note 1)

JBT1: 1-2 Normal

2-3 CMOS Clear

Notes

1

To enable Keyboard Wake-Up, set
JPWAKE jumper to 2-3

and

ENABLE
Keyboard Wake-Up function in
system BIOS.

2

Chassis Intrusion Switch (JL1) is
normally open. If connected to
chassis switch, removing chassis
cover causes switch input to close.

3

No CPU jumper settings are required
for the Celeron (333/366 MHz)
processor. The settings are preset
(fixed bus ratio) in the processor.

(see Note 2)

BIOS

ATX Power

Celeron

Processor

(PPGA package)

1

1

1

WOL

1

SUPER 370SBA/370SBM/370SLA/370SLM User's Manual

1-10

Figure 1-9. 440BX/LX AGP Chip Set:

System Block Diagram

CPU

440BX

or

440LX

AGP

Port

PIIX4E

Power

Management

SDRAM

Host Bus

PCI Slots*

SMBus

USB

Ports

USB

IDE Ports

ISA Slots*

BIOS

SIO

*

= ATX motherboards have 3 ISA and 4 PCI slots.

microATX motherboards have 1 ISA and 3 PCI slots.

Chapter 1: Introduction

1-11

1-2 Features of the 370SBA, 370SBM, 370SLA and

370SLM Motherboards*

*

Bold text indicates variations in features.

The following list covers the general features of the 370SBA, 370SBM, 370SLA
and 370SLM motherboards.

CPU

• Single Celeron 333/366/400 MHz PPGA processors at a 66 MHz front side
bus speed. (The 100 MHz FSB speed is only available when using 100
MHz FSB Celeron processors. For future processor support, check our
web site at http://www.supermicro.com.)

Memory

• 384 MB EDO or 384 MB unbuffered 3.3V SDRAM at 66 MHz (370SLA and

370SLM only)

• 384 MB EDO or 384 MB unbuffered 3.3V SDRAM, or 768 MB registered
SDRAM (370SBA and 370SBM only)

(Note: The maximum cacheable memory size depends on the processor capabilities.)

• Error Checking and Correction and Error Checking support

Chip Set

• Intel 440BX for 370SBA and 370SBM

• Intel 440LX for 370SLA and 370SLM

Expansion Slots

370SBA / 370SLA 370SBM / 370SLM

• 4 PCI slots • 3 PCI slots

• 3 ISA slots • 1 ISA slots
[one shared PCI/ISA slot] [one shared PCI/ISA slot]

• 1 AGP slot • 1 AGP slot

BIOS

• 2 Mb AMI® Flash BIOS

• APM 1.2, DMI 2.1, Plug and Play (PnP)

• ACPI Support

PC Health Monitoring

• Seven onboard voltage monitors for CPU core(s), CPU I/O, +3.3V, ±5V,
and ±12V

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

• Environmental temperature monitor and control

• CPU fan auto-off in sleep mode

• Chassis overheat LED and thermal fan control

SUPER 370SBA/370SBM/370SLA/370SLM User's Manual

1-12

• Chassis intrusion detection

• System resource alert

• Hardware BIOS virus protection

• Switching voltage regulator for the CPU core

• SUPERMICRO SUPER Doctor and Intel® LANDesk® Client Manager
(LDCM) support (optional)

ACPI/PC 98 Features

• Microsoft OnNow

• Slow blinking LED for suspend state indicator

• BIOS support for USB keyboard

• Real-time clock wake-up alarm

• Main switch override mechanism

• External modem ring-on

On-Board I/O

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

• 1 floppy port interface

• 2 Fast UART 16550 serial ports

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

• PS/2 mouse and PS/2 keyboard

• Infrared port

• 2 USB (Universal Serial Bus) 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

Dimensions

• SUPER 370SBA - ATX (12" x 7")

• SUPER 370SBM - microATX (9.6" x 7.25")

• SUPER 370SLA - ATX (12" x 7")

• SUPER 370SLM - microATX (9.6" x 7.25")

Chapter 1: Introduction

1-13

1-3 Chip Set Overview

440BX Chip Set

The 440BX chip set, developed by Intel, is the ultimate processor platform tar­geted for 3D graphics and multimedia applications. Along with a System-to-PCI
bridge integrated with an optimized DRAM controller and data path, this chip set
supports the Accelerated Graphics Port (AGP) interface. AGP is a high perfor­mance, component level interconnect targeted at 3D applications and based on
a set of performance enhancements to PCI. The I/O subsystem portion of the
440BX platform is based on the PIIX4E, a highly integrated version of Intel's PCI­to-ISA bridge family.

The PCI/AGP and system bus interface controller (82443BX) supports one
Celeron processor. It provides an optimized 72-bit DRAM interface (64 bits of
data plus ECC) that supports 3.3V DRAM technology. 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 data transfer rates of up to 133 MHz
(532 MB/s).

440LX Chip Set

The 440LX chip set, developed by Intel, is a high-performance processor
platform targeted for existing 3D graphics and multimedia applications.
Along with a System-to-PCI bridge integrated with an optimized DRAM
controller and data path, this chip set supports the Accelerated Graphics Port
(AGP) interface. AGP is a high performance, component level interconnect
targeted at 3D applications and based on a set of performance enhancements
to PCI. The I/O subsystem portion of the 440LX platform is based on the
PIIX4, a highly integrated version of Intel's PCI-to-ISA bridge family.

The 440LX PCI/AGP Controller (PAC) system bus interface supports one
Celeron processor. It provides an optimized 72-bit DRAM interface (64 bits of
data plus ECC) that supports 3.3V DRAM technology. The PAC 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 data transfer rates of up to 133

MHz (532 MB/s).

SUPER 370SBA/370SBM/370SLA/370SLM User's Manual

1-14

1-4 PC Health Monitoring

This section describes the PC health monitoring features of the SUPER 370SBA,
370SBM, 370SLA and 370SLM. All have an onboard System Hardware Monitor
chip that supports PC health monitoring.

Seven Onboard Voltage Monitors for the CPU Core(s), CPU I/
O, +3.3V,

±±

±±

±5V,

and

±±

±±

±12V

The onboard voltage monitor scans these seven monitored voltages continuously.
Once a voltage becomes unstable, it will give a warning or send an error message
to the screen. Users can adjust the voltage thresholds to define the sensitivity
of the voltage monitor.

Note: -5V is not required when using a microATX (SFX) power supply.

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 fan is controlled by the ACPI BIOS and the ACPI-enabled
operating system. The thermal fans are controlled by the overheat detection
logic.

Environmental Temperature Control

The thermal control sensor monitors the CPU temperature in real-time and will
turn on a back-up fan whenever the CPU temperature exceeds a user-defined
threshold. The overheat circuitry runs independently from the CPU. It can
continue to monitor for overheat conditions even when the CPU is in sleep mode.
Once it detects that the CPU temperature is too high, it will automatically turn
on the back-up fan to prevent any overheat damage to the CPU. The onboard
chassis thermal circuitry can monitor the overall system temperature and alert
users when the chassis temperature is too high.

CPU Fan Auto-Off in Sleep Mode

The CPU fan activates when the power is turned on. It can be turned off when
the CPU is in sleep mode. When in sleep mode, the CPU does not run at full
power, and thereby generates less heat. For power saving purposes, the user
has the option to shut down the CPU fan.

Chapter 1: Introduction

1-15

CPU Overheat LED and Thermal Fan Control

This feature is available when the user enables the CPU overheat warning function
in the BIOS (see page 5-17). The overheat sensor is triggered when the CPU
temperature exceeds the temperature configured by the user. When the overheat
sensor is triggered, both the overheat fan and the warning LED are activated.

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 feature is available when the user is running Intel's LANDesk
Client Manager and SUPERMICRO's Super Doctor.

System Resource Alert

This feature is available when used with Intel's 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 and there is insufficient hard drive space for saving
the data, you can be alerted of the potential problem.

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 up to 20A of current,
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.

SUPER 370SBA/370SBM/370SLA/370SLM User's Manual

1-16

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 boot up client workstations

1-6 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,
including its hardware, 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 a processor architecture-indepen­dent implementation that is compatible with both Windows 98 and Windows NT

5.0.

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 off and responds immediately to user or other requests.

Chapter 1: Introduction

1-17

Slow Blinking LED for Suspend State Indicator

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

BIOS Support for USB Keyboard

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

Real-Time Clock Wake-up Alarm

Although the PC may be perceived to be off when not in use, it is still capable
of responding to preset wake-up events. In the BIOS, the user can set a timer
to wake-up the system at a predetermined time (see page 5-14).

Main Switch Override Mechanism

When an ATX power supply is used, the power button can function as a system
suspend button. When the user depresses the power button, the system will
enter a SoftOff state. The monitor will be suspended, and the hard drive will spin
down. Depressing the power button again will cause the whole system to wake­up. During the SoftOff state, the ATX power supply provides power to keep the
required circuitry in the system alive. In case the system malfunctions and you
want to turn off the power, just depress and hold the power button for 4 seconds.
The power will turn off and no power will be provided to the motherboard.

External Modem Ring-on

Wake-up events can be triggered by a device such as the external modem ringing
when the system is in SoftOff state. Note that external modem ring-on can only
be used with an ATX 2.01 (or above) compliant power supply.

Wake-On-LAN (WOL)

Wake-on-LAN is defined as the ability of a management application to remotely
power up a computer that 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 motherboards have a 3-pin header (WOL) used to connect to the 3-pin header
on a Network Interface Card (NIC) that has WOL capability. Note that Wake-On­Lan can only be used with an ATX 2.01 (or above) compliant power supply.