Supermicro MBD-X7SLM-O User manual

X7SLM

X7SLM+

USER’S MANUAL

Revision 1.0b

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.

Super Micro Computer, Inc. ("Supermicro") reserves the right to make changes to the product

described in this manual at any time and without notice. This product, including software and docu-

mentation, is the property of Supermicro and/or its licensors, and is supplied only under a license.

Any use or reproduction of this product is not allowed, except as expressly permitted by the terms

of said license.

IN NO EVENT WILL SUPER MICRO COMPUTER. INC. BE LIABLE FOR DIRECT, INDIRECT,

SPECIAL, INCIDENTAL, SPECULATIVE 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, SUPER MICRO COMPUTER. INC.

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.

Any disputes arising between manufacturer and customer shall be governed by the laws of Santa

Clara County in the State of California, USA. The State of California, County of Santa Clara shall

be the exclusive venue for the resolution of any such disputes. Supermicro's total liability for

all claims will not exceed the price paid for the hardware product.

FCC Statement: This equipment has been tested and found to comply with the limits for a Class

A digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide

reasonable protection against harmful interference when the equipment is operated in a commercial

environment. This equipment generates, uses, and can radiate radio frequency energy and, if not

installed and used in accordance with the manufacturer’s instruction manual, may cause harmful

interference with radio communications. Operation of this equipment in a residential area is likely

to cause harmful interference, in which case you will be required to correct the interference at your

own expense.

California Best Management Practices Regulations for Perchlorate Materials: This

Perchlorate warning applies only to products containing CR (Manganese Dioxide) Lithium coin

cells. “Perchlorate Material-special handling may apply. See www.dtsc.ca.gov/hazardouswaste/

perchlorate”

WARNING: Handling of lead solder materials

used in this product may expose you to lead, a chemical

known to the State of California to cause birth defects and

other reproductive harm.

Manual Revision 1.0b

Release Date: August 27, 2010

Unless you request and receive written permission from Super Micro Computer, Inc., 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.

Printed in the United States of America

Preface

This m anual is wr itten for system integrators, PC te chnic ians and

knowledgeable PC users. It provides information for the installation and use of the

X7SLM/X7SLM+ motherboard.

About This Motherboard

The X7SLM/X7SLM+ supports a single Intel® Core™ 2 Duo/Pentium dual-core/

Pentium D/Pentium 4/Celeron dual-core/Celeron/Celeron D Processor with a system

bus speed of up to 800 MHz. The Intel® Core™ 2 Duo/Pentium/Celeron Processor

supports the 775-Land Grid Array Package that interfaces with the motherboard via

an LGA775 socket. With support of the Intel® Core Microarchitecture Technology,

Graphics Media Accelerator 950, Advanced Digital Media Boost, and Smart Memory

Access, the X7SLM/X7SLM+ delivers unparalleled system performance and great

energy efciency in a slim package. Please refer to the motherboard specica-

tions pages on our web site (http://www.supermicro.com/Products/) for updates on

supported processors. This product is intended to be installed and serviced by a

professional.

Manual Organization

Chapter 1 describes the features, specications and performance of the mainboard

and provides detailed information about the chipset.

Chapter 2 provides hardware installation instructions. Read this chapter when in-

stalling the processor, memory modules and other hardware components into the

system. If you encounter any problems, see Chapter 3, which describes trouble-

shooting procedures for video, memory and system setup stored in the CMOS.

Chapter 4 includes an introduction to the BIOS and provides detailed information

on running the CMOS Setup utility.

Appendix A provides BIOS Error Beep Codes.

Appendix B lists the Windows OS Installation Instructions.

Appendix C lists Other Software Program Installation Instructions.

Conventions Used in the Manual:

Special attention should be given to the following symbols for proper installation and

to prevent damage done to the components or injury to yourself:

Danger/Caution: Instructions to be strictly followed to prevent catastrophic

system failure or to avoid bodily injury

Preface

iii

X7SLM/X7SLM+ User’s Manual

Warning: Important information given to ensure proper system installation

or to prevent damage to the components

Note: Additional Information given to differentiate various models or pro-

vides information for correct system setup.

iv

Contacting Supermicro

v

Contacting Supermicro

Headquarters

Address: Super Micro Computer, Inc.

980 Rock Ave.

San Jose, CA 95131 U.S.A.

Tel: +1 (408) 503-8000

Fax: +1 (408) 503-8008

Email: [email protected] (General Information)

[email protected] (Technical Support)

Web Site: www.supermicro.com

Europe

Address: Super Micro Computer B.V.

Het Sterrenbeeld 28, 5215 ML

's-Hertogenbosch, The Netherlands

Tel: +31 (0) 73-6400390

Fax: +31 (0) 73-6416525

Email: [email protected] (General Information)

[email protected] (Technical Support)

[email protected] (Customer Support)

Asia-Pacic

Address: Super Micro Computer, Inc.

4F, No. 232-1, Liancheng Rd.

Chung-Ho 235, Taipei County

Taiwan, R.O.C.

Tel: +886-(2) 8226-3990

Fax: +886-(2) 8226-3991

Web Site: www.supermicro.com.tw

Technical Support:

Email: support@supermicro.com.tw

Tel: 886-2-8228-1366, ext.132 or 139

vi

X7SLM/X7SLM+ User’s Manual

Table of Contents

Preface

About This Motherboard ................................................................................................ 3

Manual Organization ..................................................................................................... 3

Conventions Used in the Manual: ................................................................................. 3

Contacting Supermicro .................................................................................................. 5

Chapter 1 Introduction

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

Checklist .......................................................................................................... 1-1

1-2 Chipset Overview ........................................................................................... 1-9

Graphics Memory Controller Hub (GMCH) ..................................................... 1-9

Intel® I/O Controller Hub 7 (ICH7) ................................................................. 1-9

Intel® 82945GC Features ............................................................................... 1-9

1-3 PC Health Monitoring .................................................................................... 1-10

Recovery from AC Power Loss ..................................................................... 1-10

Onboard Voltage Monitoring ........................................................................ 1-10

Fan Status Monitor with Software ................................................................. 1-10

CPU Overheat LED and Control .................................................................. 1-10

1-4 Power Conguration Settings........................................................................ 1-10

Slow Blinking LED for Suspend-State Indicator ............................................1-11

BIOS Support for USB Keyboard...................................................................1-11

Main Switch Override Mechanism .................................................................1-11

1-5 Power Supply .................................................................................................1-11

1-6 Super I/O ....................................................................................................... 1-12

Chapter 2 Installation

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

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

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

2-2 Motherboard Installation .................................................................................. 2-2

Tools Needed .................................................................................................. 2-2

Installation Instructions .................................................................................... 2-2

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

Installing the LGA 775 Processor .................................................................. 2-3

Installing the Heatsink ..................................................................................... 2-5

Removing the Heatsink ................................................................................... 2-5

2-4 Installing DDR2 Memory ................................................................................. 2-6

DIMM Installation ............................................................................................ 2-6

vii

Table of Contents

Memory Support .............................................................................................. 2-6

2-5 Connectors/IO Ports ........................................................................................ 2-7

Back Panel Connectors and IO Ports ............................................................. 2-7

ATX PS/2 Keyboard and PS/2 Mouse Ports .............................................. 2-8

Universal Serial Bus (USB) ........................................................................ 2-9

Serial Ports ............................................................................................... 2-10

Video Connector ........................................................................................2-11

Ethernet Ports .......................................................................................... 2-12

Front Control Panel ....................................................................................... 2-13

Front Control Panel Pin Denitions............................................................... 2-14

NMI Button ............................................................................................... 2-14

HDD LED .................................................................................................. 2-15

NIC1/NIC2 LED Indicators ....................................................................... 2-15

Overheat (OH)/Fan Fail LED.................................................................... 2-16

Power Fail LED ........................................................................................ 2-16

Reset Button ........................................................................................... 2-17

Power Button ........................................................................................... 2-17

2-6 Connecting Cables ........................................................................................ 2-18

8-Pin Auxiliary Power Connector.............................................................. 2-18

External Power Connector ...................................................................... 2-19

Fan Headers ............................................................................................. 2-20

Internal Speaker ....................................................................................... 2-21

Power LED/Speaker ................................................................................. 2-21

Overheat/Fan Fail LED (JOH1) ........................................................ 2-22

Chassis Intrusion ..................................................................................... 2-22

2-7 Jumper Settings ............................................................................................ 2-23

Explanation of Jumpers ................................................................................ 2-23

LAN Port Enable/Disable ......................................................................... 2-23

CMOS Clear ............................................................................................. 2-24

Watch Dog Enable/Disable ...................................................................... 2-24

TPM Support Enable (X7SLM+ Only) ...................................................... 2-25

2-8 Onboard Indicators ........................................................................................ 2-26

LAN Port LEDs ......................................................................................... 2-26

Onboard Power LED ............................................................................... 2-26

2-9 Serial ATA, HDD and Floppy Drive Connections .......................................... 2-27

SATA Connectors ..................................................................................... 2-27

IDE Connector .......................................................................................... 2-28

Floppy Connector ..................................................................................... 2-29

X7SLM/X7SLM+ User’s Manual

viii

Chapter 3 Troubleshooting

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

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

No Power ........................................................................................................ 3-1

No Video ......................................................................................................... 3-1

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

Losing the System’s Setup Conguration ....................................................... 3-2

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

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

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

Chapter 4 BIOS

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

Starting BIOS Setup Utility .............................................................................. 4-1

How To Change the Conguration Data ......................................................... 4-1

Starting the Setup Utility ................................................................................. 4-2

4-2 Main Setup ...................................................................................................... 4-2

4-3 Advanced Setup Congurations...................................................................... 4-4

4-4 Security Settings ........................................................................................... 4-16

4-5 Boot Conguration ........................................................................................ 4-18

4-6 Exit Options ................................................................................................... 4-19

Appendix A POST Error Beep Codes

Recoverable POST Error Beep Codes ......................................................................A-1

Appendix B Installing the Windows OS

Installing the Windows XP/2000/2003 OS for Systems without RAID Functions ......B-1

Appendix C Software Installation Instructions

C-1 Installing Drivers ..............................................................................................C-1

C-2 Conguring Supero Doctor II ..........................................................................C-2

Chapter 1: Introduction

1-1

Chapter 1

Introduction

1-1 Overview

Checklist

Congratulations on purchasing your computer motherboard from an acknowledged

leader in the industry. Supermicro boards are designed with the utmost attention to

detail to provide you with the highest standards in quality and performance.

Please check that the following items have all been included with your motherboard.

If anything listed here is damaged or missing, contact your retailer.

All the following items are included in the retail box.

One (1) Supermicro Mainboard•

Two (2) SATA cables (CBL-0044L)•

One (1) IDE hard drive cable (CBL-0036L-03) •

One (1) oppy drive ribbon cable (CBL-022L)•

One (1) I/O shield (CSE-PT7L) •

One (1) Supermicro CD containing drivers and utilities•

One (1) User's/BIOS Manual•

1-2

X7SLM/X7SLM+ User’s Manual

X7SLM/X7SLM+ Image

Note: All graphics shown in this manual were based upon the latest PCB

Revision available at the time of publishing of the manual. The motherboard

you've received may or may not look exactly the same as the graphics

shown in this manual.

Chapter 1: Introduction

1-3

Motherboard Layout

Important Notes to the User

Jumpers not indicated are for testing only. •

See Chapter 2 for detailed information on jumpers, I/O ports and JF1 front •

panel connections.

" " indicates the location of "Pin 1". •

When LE1 (Onboard Power LED Indicator) is on, system power is on. Unplug •

the power cable before installing or removing any components.

Trusted Platform Module (TPM) support is available on the X7SLM+ only.

•

X7SLM/X7SLM+

KB/Mouse

USB 0/1

COM1

VGA

JPL1

LAN1

LAN2

JPL2

LAN

CTRL

Fan4

LAN

CTRL

COM2 Floppy

Battery

Super I/O

SPI BIOS

TPM CTRL

USB2

J45

J46

USB3/4

Fan3

JL1

JBT1

JPT1

JWD

JD1

IDE

PWR Extension

JP3

I-SATA0

I-SATA1

I-SATA2

I-SATA3

Fan2

LE1

FP CTRL

Speaker

SP1

JOH1

Fan1

8-pin PWR

J41

Fan5

CPU Fan

24-pin PWR

JPW1

Intel 945GC

MCH

CPU

DIMM 1A

DIMM 1B

DDR2 Unbuffered Non-ECC 667/533/400 MHz

Slot6 PCI-E x8

Slot5 PCI 33 MHz

Intel ICH 7

JF1

1-4

X7SLM/X7SLM+ User’s Manual

X7SLM/X7SLM+

KB/Mouse

USB 0/1

COM1

VGA

JPL1

LAN1

LAN2

JPL2

LAN

CTRL

Fan4

LAN

CTRL

COM2 Floppy

Battery

Super I/O

SPI BIOS

TPM CTRL

USB2

J45

J46

USB3/4

Fan3

JL1

JBT1

JPT1

JWD

JD1

IDE

PWR Extension

JP3

I-SATA0

I-SATA1

I-SATA2

I-SATA3

Fan2

LE1

FP CTRL

Speaker

SP1

JOH1

Fan1

8-pin PWR

J41

Fan5

CPU Fan

24-pin PWR

JPW1

Intel 945GC

MCH

CPU

DIMM 1A

DIMM 1B

DDR2 Unbuffered Non-ECC 667/533/400 MHz

Slot6 PCI-E x8

Slot5 PCI 33 MHz

Intel ICH 7

JF1

9

5

4

3

10

11

8

7

6

1

2

12

13

14

16

17 18

20

21

25

26

27

28

29

30

31

32

33

15

3435

X7SLM/X7SLM+ Quick Reference

(not drawn to scale)

19

22

23

24

Chapter 1: Introduction

1-5

X7SLM/X7SLM+ Quick Reference

Jumpers Label Description Default Setting

JBT1 #15 CMOS Clear See Chapter 2

JPL1/JPL2 #5, #8 GLAN 1/2 Enable Pins 1-2 (Enabled)

JPT1 (X7SLM+ only) #24 TPM Support Enable Pins 1-2 (Enabled)

JWD #25 Watch Dog Timer Enable Pins 1-2 (Reset)

Connectors Label Description

Battery #11 Onboard Battery

BIOS #14 SPI BIOS Chip

COM1/COM2 #3, #12 COM Port 1/Serial Port Connector 2

Fans 1~5 #31, #27, #19, #35, #33 System Cooling Fans 1~4 & CPU Fan (Fan5)

Floppy #13 Floppy Disk Connector

IDE #22 IDE Hard Drive Connector

I-SATA 0~3 #20 Intel South Bridge SATA Headers

J41 #32 12V 8-pin Power Connector (Required)

JD1 #23 Power LED/External Speaker Header

JF1 #29 FP Control Panel Header

JL1 #16 Chassis Intrusion Header

JOH1 #30 Overheat LED Header

JP3 #21 Power Extension Connector for Add-on card

JPW1 #34 ATX 24-pin Power Connector (Required)

LAN1/LAN2 #6, #7 Ethernet RJ45 (Gigabit LAN) Connectors 1~2

KB/Mouse #1 PS/2 Keyboard/Mouse

Slot 5 #10 PCI-33 MHz

Slot 6 #9 PCI-Express x8 slot

SP1 #26 Internal Speaker/Buzzer

USB 0/1 #2 Back Panel Universal Serial Bus Ports 0/1

USB 2 #17 Internal USB Port 2

USB 3/4 #18 Front Panel USB Connections 3/4

VGA #4 Video Graphics Port

LED Indicator Label Description

LE1 #28 Onboard Power LED Indicator

1-6

X7SLM/X7SLM+ User’s Manual

Motherboard Features

CPU

Single Intel® Core™ 2 Duo/Pentium dual-core/Pentium D/Pentium 4/Celeron •

dual-core/Celeron/Celeron D Processor with a system bus speed of up to 800

MHz and the CPU voltage of up to 65W.

Notes: For system stability, please do not use a processor with the volt-

age higher than 65W.

Features supported by the Core™ 2 Duo CPU:

Dual-core CPU (support up to 65W)•

FSB Dynamic Bus Inversion (DBI)•

Intel® Smart Memory Access•

Intel® Dynamic Power Coordination •

Memory

Supports unbuffered Non-ECC DDR2 up to 2 GB/s (DDR2 667/533/400) for •

dual-channel mode.

Chipset

Intel® 945GC GMCH (North Bridge), ICH7 (South Bridge) •

Supports Intel Graphics Media Accelerator GMA 950•

Expansion Slots

One (1) PCI-Express x8 slot (Slot 6)•

One (1) 32-bit PCI 33MHz slot (Slot 5) •

BIOS

8 Mb AMI BIOS•

®

, SPI Flash BIOS

DMI 2.3, PCI 2.2, ACPI 1.0/2.0/3.0, Hardware BIOS virus protection, SMBIOS •

2.5, and Plug and Play (PnP)

PC Health Monitoring

Onboard voltage monitors for CPU Cores, Memory Voltage, Chipset Voltage, •

+3.3V, +3.3V standby, +5V, +5V Standby, +12V and VBat

Fan status monitor with rmware 4-pin (Pulse Width Modulation) •

Low noise fan speed control•

CPU 3-Phase-switching voltage regulator•

SuperoDoctor III, Watch Dog, NMI•

Power-up mode control for recovery from AC power loss•

I•

2

C temperature sensing logic

CPU/System overheat LED and control•

Chapter 1: Introduction

1-7

System resource alert via Supero Doctor III•

CPU Thermal Trip support•

Thermal Monitor 2 (TM2) support•

PECI (Platform Environment Conguration Interface) support•

TPM (Trusted Platform Management) support • (X7SLM+ only)

ACPI Features

Slow blinking LED for suspend state indicator

•

Main switch override mechanism•

Onboard I/O

Built in ICH7 SATA Controller, 4 connectors for 4 devices •

1 oppy port interface (up to 2.88 MB) •

1 Fast UART 16550 compatible serial port and 1 header•

Dual Realtek RTL8111C-GR Single-port Gigabit Ethernet Controllers support 2 •

Gigabit LAN ports

PS/2 mouse and PS/2 keyboard ports•

One IDE hard drive supports single/dual channel(s)•

Two USB (Universal Serial Bus) 2.0 ports for a speed of up to 480Mbps on •

the backpanel and three USB connections that can be accessed from the front

panel

Intel GMA 950 and an Onboard VGA Connector built-in •

Winbond Super I/O 83627DHG•

Infineon SLB9635TT_1.2 TPM Controller provides onboard TPM support •

(X7SLM+ only)

Other

Chassis Intrusion Header and Detection

•

Pb Free•

CD Utilities

BIOS ash upgrade utility

•

Drivers and software for Intel® 945GC chipset utilities •

Dimensions

Micro ATX form factor, 9.6" x 9.6" (243.8 x 243.8 mm)•

1-8

X7SLM/X7SLM+ User’s Manual

SLOTS

LGA775_PROCESSOR

ICH-7

USB

PORT_0~4

BIOS Flash

ROM (SPI)

LPC I/O

MS.

KB. FDD. SER.1

SER.2

PRI_IDE

VRM 10.1

ADDR

CTRL CTRL

ADDR

DATADATA

UDMA/100

LPC

PCI_32_BUS

DDR2 667/533/400

VRM V10.1

DMI

1_PCI_x32

DIMM_CHA

S-ATA/300

4 x SATA

CK505 CLK

1 PCIE_x8

Slot

PORTS

PCIE_x16

INTEGRATED

GRAPHICS

RTL8111C

PCIE_x1

W83627DHG

FSB: 800/533MHz

LPCUSB 2.0/1.1

PCIE_x1

945GC

Pb

RTL8111C

GMCH/MCH

X7SLM/X7SLM+ Block Diagram

Note: This is a general block diagram. Please see the Motherboard Features pages

for details on the features of each motherboard.

Chapter 1: Introduction

1-9

1-2 Chipset Overview

The Intel® 82945GC chipset, designed for use with the Intel® LGA 775 processor

with a front side bus speed of up to 800 MHz, contains two components: GMCH

(North Bridge) and ICH7 (South Bridge). The GMCH is used for the host bridge,

and the ICH7, for the I/O subsystems.

Graphics Memory Controller Hub (GMCH)

The GMCH manages the data ow between its four interfaces: the processor

interface (FSB), the system memory interface (DRAM controller), the integrated

graphics interface, the External Graphics interface, and the I/O Controller through

DMI interface. It provides bus arbitration between the four interfaces when each

initiates transactions. The GMCH supports a 32-byte Cache Line, decoding up to 4

GB (2GB for the 945GC) of the CPU's usable memory address space. The GMCH

also supports one or two channels of SDRAM and the PCI Express-based graphics

attached devices.

The Intel® 945GC platform supports the seventh generation I/O Controller Hub (In-

tel® ICH7) to provide a multitude of I/O related features. The Direct Media Interface

(DMI) provides the chip-to-chip connection between the GMCH and the ICH7.

Intel® I/O Controller Hub 7 (ICH7)

The I/O Controller (ICH7) provides the data buffering and interface arbitration re-

quired for the system to operate efciently. It also provides the bandwidth needed

for the system to maintain its peak performance. The ICH7 supports PCI slots, Serial

ATA ports, USB 2.0 ports and dual channel IDE devices.

Intel® 82945GC Features

The Intel 945GC supports the following features:

PCI Express 2.0•

Intel Flex Memory Technology•

Intel High Denition Audio•

Intel Matrix Storage Technology•

Intel Rapid Recover Technology•

Serial Peripheral Interface (SPI)•

1-10

X7SLM/X7SLM+ User’s Manual

1-3 PC Health Monitoring

This section describes the PC health monitoring features of the X7SLM/X7SLM+.

The motherboard has an onboard System Hardware Monitor chip that supports PC

health monitoring.

Recovery from AC Power Loss

BIOS provides a setting for you to determine how the system will respond when

AC power is lost and then restored to the system. You can choose for the system

to remain powered off (in which case you must hit the power switch to turn it back

on) or for it to automatically return to a power on state. See the Power Lost Con-

trol setting in the BIOS chapter of this manual to change this setting. The default

setting is Last State.

Onboard Voltage Monitoring

The onboard voltage monitor will scan the following voltages continuously: CPU

Cores, Chipset Voltage, Memory Voltage, +3.3V, +3.3V standby, +5V, +5V Standby,

Vbat and +12V. 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 dene

the sensitivity of the voltage monitor by using SD III.

Fan Status Monitor with Software

The PC health monitor can check the RPM status of the cooling fans via Supero

Doctor III.

CPU Overheat LED and Control

This feature is available when the user enables the CPU overheat warning function

in the BIOS. This allows the user to dene an overheat temperature. When this

temperature reaches the pre-dened threshold, the CPU thermal trip feature will be

activated and it will send a signal to the Speaker LED and, at the same time, the

CPU speed will be decreased.

1-4 PowerCongurationSettings

This section describes features of your motherboard that deal with power and

power settings.

Chapter 1: Introduction

1-11

Slow Blinking LED for Suspend-State Indicator

When the CPU goes into a suspend state, the chassis 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, it will function like a normal

keyboard during system boot-up.

Main Switch Override Mechanism

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 circuitry

in the system alive. In case the system malfunctions and you want to turn off the

power, just press and hold the power button for 4 seconds. The power will turn off

and no power will be provided to the motherboard.

1-5 Power Supply

As with all computer products, a stable power source is necessary for proper and

reliable operation. It is even more important for processors that have high CPU

clock rates of 1 GHz and faster.

The X7SLM/X7SLM+ accommodates 12V ATX power supplies. Although

most power supplies generally meet the specications required by the CPU, some

are inadequate. A 2-Amp of current supply on a 5V Standby rail is strongly recom-

mended.

It is strongly recommended that you use a high quality power supply that meets

12V ATX power supply specication 1.1 or above. It is also required that the 12V

8-pin power connection (J41) be used for adequate power supply. In areas where

noisy power transmission is present, you may choose to install a line lter 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.

1-12

X7SLM/X7SLM+ User’s Manual

1-6 Super I/O

The disk drive adapter functions of the Super I/O chip include a oppy 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 genera-

tor, drive interface control logic and interrupt and DMA logic. The wide range of

functions integrated onto the Super I/O greatly reduces the number of components

required for interfacing with oppy disk drives. The Super I/O supports two 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, 16550 compatible serial communication ports

(UARTs). Each UART includes a 16-byte send/receive FIFO, a programmable baud

rate generator, complete modem control capability and a processor interrupt sys-

tem. Both UARTs provide legacy speed with baud rate of up to 115.2 Kbps as well

as an advanced speed with baud rates of 250 K, 500 K, or 1 Mb/s, which support

higher speed modems.

The Super I/O provides functions that comply with ACPI (Advanced Conguration

and Power Interface), which includes support of legacy and ACPI power manage-

ment through a SMI or SCI function pin. It also features auto power management

to reduce power consumption.

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Supermicro MBD-X7SLM-O User manual

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