ECS L7SOM User Manual

Preface

Copyright

This publication, including all photographs, illustrations and software, is protected un­der international copyright laws, with all rights reserved. Neither this manual, nor any
of the material contained herein, may be reproduced without written consent of the au­thor.

Version 3.0

Disclaimer

The information in this document is subject to change without notice. The manufac­turer makes no representations or warranties with respect to the contents hereof and
specifically disclaims any implied warranties of merchantability or fitness for any par­ticular purpose. The manufacturer reserves the right to revise this publication and to
make changes from time to time in the content hereof without obligation of the manu-

facturer to notify any person of such revision or changes.

Trademark Recognition

Microsoft, MS-DOS and Windows are registered trademarks of Microsoft Corp.
MMX, Pentium, Pentium-II, Pentium-III, Celeron are registered trademarks of Intel

Corporation.
Other product names used in this manual are the properties of their respective owners

and are acknowledged.

Federal Communications Commission (FCC)

This equipment has been tested and found to comply with the limits for a Class B digi­tal device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses, and can radiate radio frequency energy and, if not in­stalled and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not oc­cur in a particular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the

following measures:

− Reorient or relocate the receiving antenna.

− Increase the separation between the equipment and the receiver.

− Connect the equipment onto an outlet on a circuit different from that to which

the receiver is connected.

− Consult the dealer or an experienced radio/TV technician for help.

Shielded interconnect cables and a shielded AC power cable must be employed with
this equipment to ensure compliance with the pertinent RF emission limits governing
this device. Changes or modifications not expressly approved by the system's manu-

facturer could void the user's authority to operate the equipment.

Declaration of Conformity

This device complies with part 15 of the FCC rules. Operation is subject to the follow­ing conditions:

− This device may not cause harmful interference, and

− This device must accept any interference received, including interference

that may cause undesired operation.

Canadian De partment of Communications

This class B digital apparatus meets all requirements of the Canadian Interference­causing Equipment Regulations.

Cet appareil numérique de la classe B respecte toutes les exigences du Réglement
sur le matériel brouilieur du Canada.

About the Manual

The manual consists of the following:

Chapter 1

Introducing the Mainboard

Chapter 2

Installing the Mainboard

Chapter 3

Using BIOS

Chapter 4

Using the Mainboard Software

Describes features of the mainboard,
and provides a shipping checklist.

Go to ⇒ page 1

Describes installation of mainboard
components.

Go to ⇒ page 7

Provides information on using the BIOS
Setup Utility.

Go to ⇒ page 25

Describes the mainboard software.

Go to ⇒ page 48

ii

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Preface i
Features and Packing List Translations 錯誤! 尚未定義書籤。

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CHAPTER 1 1

Introducing the Mainboard 1

Introduction............................................................................................................1

Checklist.................................................................................................................1

Standard Items ...................................................................................................1

Features..................................................................................................................2

Choosing a Computer Case................................................................................4

Mainboard Components .......................................................................................5

CHAPTER 2 7

Installing the Mainboard 7

Safety Precautions ................................................................................................7

Quick Guide...........................................................................................................7

Installing the Mainboard in a Case .....................................................................8

Checking Jumper Settings ...................................................................................8

Setting Jumpers .................................................................................................8

Checking Jumper Settings.................................................................................9

Jumper Settings.................................................................................................9

Connecting Case Components.........................................................................11

The Panel Connectors......................................................................................12

Installing Hardware.............................................................................................12

Installing the Processor...................................................................................12

Installing Memory Modules............................................................................15

Installing a Hard Disk Drive/CD-ROM ..........................................................16

Installing a Floppy Diskette Drive..................................................................17

Installing Add-on Cards..................................................................................18

Connecting Optional Devices..........................................................................20

Connecting I/O Devices.....................................................................................23

External Connector Color Coding...................................................................24

CHAPTER 3 25

Using BIOS 25

About the Setup Utility........................................................................................25

The Standard Configuration............................................................................25

Entering the Setup Utility................................................................................26

Updating the BIOS..........................................................................................26

Using BIOS..........................................................................................................27

Standard CMOS Features................................................................................28

Advanced BIOS Setup Option........................................................................30

iii

Advanced Chipset Features Option.................................................................33

Integrated Peripherals Option..........................................................................35

Power Management Setup Option...................................................................40

PNP/PCI Configuration Option.......................................................................43

PC Health Status Option..................................................................................44

Frequency/Voltage Control..............................................................................45

Load Fail-Safe Defaults Option......................................................................46

Load Optimized Defaults Option....................................................................46

Set Supervisor and User Passwords Options...................................................46

Save & Exit Setup Option...............................................................................47

Exit Without Saving........................................................................................47

CHAPTER 4 48

Using the Mainboard Software 48

About the Software CD-ROM............................................................................48

Auto-installing under Windows 98....................................................................48

Running Setup.................................................................................................49

Manual Installation..............................................................................................51

Utility Software Reference.................................................................................51

Award Flash Memory Utility...........................................................................51

PC-CILLIN......................................................................................................51

MediaRing Talk – Telephony Software...........................................................52

Super Voice – Fax/Modem Software...............................................................52

WinFlash Utility..............................................................................................52

CD Ghost.........................................................................................................52

Recovery Genius.............................................................................................52

Language Genius.............................................................................................52

PageABC.........................................................................................................52

iv

CChhaapptteerr 11

Introducing the Mainboard

IInnttrroodduuccttiioonn

Congratulations on purchasing the L7SOM mainboard. The L7SOM main­board is an Micro ATX mainboard that uses a 4-layer printed circuit board and
measures 244 mm x 244 mm. The mainboard features a Socket 462 that ac­commodates AMD Athlon processors supporting frontside bus (FSB) speeds
up to 266 MHz.

The L7SOM incorporates the SiS740 Northbridge and SiS961 (or SiS961B
/SIS962) Southbridge chipsets which combine support for the new high­bandwidth Double Data Rate (DDR) 266 SDRAM, and the AC 97 audio codec.

Note: SDRAM provides 800 MBps or 1 GBps data transfer depending on

whether the bus is 100 MHz or 133 MHz. Double Data Rate SDRAM
(DDR SDRAM) doubles the rate to 1.6 GBps or 2.1 GBps by transferring
data on both the rising and falling edges of the clock. DDR SDRAM uses
additional power and ground lines and requires 184-pin DIMM modules
rather than the 168-pin DIMMs used by SDRAM.

CChheecckklliisstt

Compare the mainboard’s package contents with the following checklist:

Standard Items

• One mainboard

• One diskette drive ribbon cable

• One IDE drive ribbon cable

• One auto-install software support CD

• One 1394 bracket (optional)

• This user’s manual

FFeeaattuurreess

Processor The mainboard uses an AMD 462-pin Socket A that has the

Chipset

USB USB 1.1

following features:

• Supports 200/266 MHz frontside bus (FSB)

• Accommodates AMD Athlon Duron, Athlon, and Athlon XP

processors.

The SiS740 Northbridge and SiS961 Southbridge chipsets are
based on an innovative and scalable architecture with proven
reliability and performance. A few of the chipset’s advanced
features are:

• Integrated DRAM controller supports memory bus up to
266 MHz

• A 16-bit bi-directional data bus provides high I/O through put

• Integrated 2D/3D accelerator providing high graphics

performance

• A low 2.5-volt DDR266 SDRAM power consumption
which makes it an excellent solution for notebooks and
desktops with a small footprint

• Built in GDI+ accelerator

• An ATA 100 interface on the chipset, which helps boost

system performance by providing a high-speed connec­tion to ATA 100 Hard Disk Drives, delivering maximum
sustained data transfer rates of 100 MB/sec

Additional key features include support for six USB ports, an
AC 97 link for audio and modem, hardware monitoring, and
ACPI/OnNow power management.

This mainboard may support either one of the three
Southbridge chipset. Refer below for details:

• SiS961 Southbridge – supports ATA100 interface and
six USB ports.

• SiS961B Southbridge – supports ATA133 interface and
six USB ports.

• SiS962 Southbridge – supports ATA133 interface and
six USB ports including onboard USB 2.0 and IEEE
1394A controller.

The SiS961 or SiS961B Southbridge chipset features the USB

1.1 specification which can support for six USB ports.

However, if the mainboard comes with SiS962 Southbridge
chipset, then the mainboard supports the USB 2.0 specifica-

tion.

USB 2.0 (optional)

The USB 2.0 Controller is compliant with Universal Serial Bus
Specification Revision 2.0.

The USB 2.0 supports data transfer rates up to 480MB/sec for
high-speed devices and specifies a microframe that will be
1/8th of a 1msec frame. This allows the USB 2.0 devices to

have small buffers even at high data rates.
The USB 1.1 connectors and other full speed cables can sup-

port the higher speed of USB 2.0 without any changes.

2

The chipset has the following advanced USB features:

• Compliant with Enhanced Host Controller Interface
(EHCI) Specification Revision 0.95 and Universal Host
Controller Interface (UHCI) Specification Revision 1.1

• PCI multi-function device consists of two UHCI Host Control­lers for full/low-speed signaling and one EHCI Host

• Controller core for high-speed signaling

• Supports PCI-Bus Power Management Interface Specifi-

cation release 1.1

• Legacy support for all downstream facing ports

IEEE 1394A Con­troller Interface

(optional)

Memory The mainboard accommodates DDR200/266 DDR SDRAM (Dou-

AC 97 Audio
Codec

Expansion
Options

• Fully supports provisions of IEEE 1394-1995 and P1394A
for high performance serial bus

• Provides two fully compliant cable ports at 100/200/400
Mbits and operates in one, two or three port mode

• Single 24.576 MHZ crystal provide transmit/receive data
at 100/200/400 Mbits/s and LLC clock at 49.152 M

• Separate cable bias (TPBIAS) and driver termination
voltage supply for each port

• Support power-down feature to conserve energy in bat­tery powered applications

ble Data Rate Synchronous DRAM) up to 2 GB using two 2.5V
unbuffered DIMM modules.

The AC 97 Audio codec is compliant with the AC 97 2.2 speci­fication, and supports 18-bit ADC (Analog Digital Converter)
and DAC (Digital Analog Converter) resolution as well as 18-bit
stereo full-duplex codec with independent and variable sam­pling rates. Further features include support for six analog line­level stereo inputs.

The mainboard comes with the following expansion options:

• Three 32-bit PCI slots

• A Communications Network Riser (CNR) slot

• Two IDE connectors which support four IDE channels and

a floppy disk drive interface

The L7SOM supports Ultra DMA bus mastering with transfer
rates of 33/66/100 MB/sec.

Note: If the mainboard incorporates the SiS961B or

SiS962 Southbridge chipset, the Ultra DMA bus
mastering can support up to 133 MB/sec transfer
rate. For SiS961 Southbridge chipset, the transfer
rate can support up to 100MB/sec only.

Integrated I/O The mainboard has a full set of I/O ports and connectors:

Onboard LAN
(optional)

• Two PS/2 ports for mouse and keyboard

• One serial port

• One VGA port

• One parallel port

• One MIDI/game port

• One LAN port

• Two USB ports

• Audio jacks for microphone, line-in and line-out

The Realtek RTL8100 LAN chip is incorporated in the chipset
providing the mainboard with integrated Ethernet PCI LAN

3

capabilities.

VGA The mainboard has a built-in high performance, quality 2D/3D

BIOS
Firm ware

graphics accelerator. The graphics system supports the Ultra­AGP II ™ with 2GB/s bandwidth architecture and uses a
shared memory scheme that allows up to 64MB of system

memory to be used as video memory.
This mainboard uses Award BIOS that enables users to con-

figure many system features including the following:

• Power management

• Wake-up alarms

• CPU parameters

• CPU and memory timing

The firmware can also be used to set parameters for different
processor clock speeds.

CChhoooossiinngg aa CCoommppuutteerr CCaassee

There are many types of computer cases on the market. The mainboard co m­plies with the specifications for the Micro ATX system case. Some features on
the mainboard are implemented by cabling connectors on the mainboard to
indicators and switches on the system case. Ensure that your case supports
all the features required. The mainboard can support one or two floppy disk­ette drives and four enhanced IDE drives. Ensure that your case has sufficient
power and space for all the drives that you intend to install.

Most cases have a choice of I/O templates in the rear panel. Make sure that
the I/O template in the case matches the I/O ports installed on the rear edge
of the mainboard.

This mainboard has a Micro ATX form factor of 244 mm x 244 mm. Choose a
case that accommodates this form factor.

4

MMaaiinnbbooaarrdd CCoommppoonneennttss

5

Table of Mainboard Components

Label Component

ATX1 Power connector
AUDIO1 Front-oriented microphone/line-out port header
BT1 Three volt realtime clock battery
CASEFAN1 Auxiliary case cooling fan
CDIN1 Primary CD-in connector
CDIN2 Secondary CD-in connector
CNR1 Communications Networking Riser slot
CPU1 Socket A for AMD Athlon processor
CPUFAN1 Cooling fan for CPU
DIMM1 ~ DIMM2 Two 184-pin DIMM sockets
FDD1 Floppy disk drive connector
FIDJP1 CPU ratio selector
IDE 1 Primary IDE channel
IDE 2 Secondary IDE channel
J3* Serial IRQ header
J5 IEEE 1394A header
J6 IEEE 1394A header
JP1 Clear CMOS jumper
JP3 BIOS protection jumper
LED11 Memory module LED
PANEL1 Connector for case front panel switches and LED indica-

PCI1 ~ PCI3 Three 32-bit add-in card slots
SIR1 Serial infrared cable header
SJ1 Single-color LED header
SPDIF1* SPDIF out header
SPKR1 Speaker connector
USB2/3 Front panel USB headers
WOL1 Wake On LAN wakeup connector
WOM1 Wake On Modem wakeup connector

* Reserved for OEM use only

This concludes Chapter 1. The next chapter explains how to install the mai n­board.

tors

1

The red indicator LED1 turns on if your system is still powered, at which time

memory modules cannot be installed or uninstalled.

6

CChhaapptteerr 22

Installing the Mainboard

SSaaffeettyy PPrreeccaauuttiioonnss

Follow these safety precautions when installing the mainboard:

• Wear a grounding strap attached to a grounded device to avoid

damage from static electricity.

• Discharge static electricity by touching the metal case of a safely

grounded object before working on the mainboard.

• Leave components in the static-proof bags they came in.

• Hold all circuit boards by the edges. Do not bend circuit boards.

QQuuiicckk GGuuiiddee

This Quick Guide suggests the steps you can take to assemble your system
with the mainboard.

The following table provides a reference for installing specific components:

Locating Mainboard Components Go to page 5
Setting Jumpers Go to page 8
Installing the Mainboard in a Case Go to page 8
Installing Case Components Go to page 11
Installing the CPU Go to page 12
Installing Memory Go to page 15
Installing an HDD and CD-ROM Drive Go to page 16
Installing an FDD Go to page 17
Installing Add-on Cards Go to page 18
Connecting Options Go to page 20
Connecting Peripheral (I/O) Devices Go to page 23

IInnssttaalllliinngg tthhee MMaaiinnbbooaarrdd iinn aa CCaassee

Refer to the following illustration and instructions for installing the mainboard
in a case:

This illustration shows an ex­ample of a mainboard being
installed in a tower-type case:

Note: Do not overtighten

the screws as this
can stress the main­board.

Most system cases have
mounting brackets installed in
the case, which correspond to
the holes in the mainboard.
Place the mainboard over the
mounting brackets and secure
the mainboard onto the mount­ing brackets with screws.

2. Secure the mainboard with
screws where appropriate.

1. Place the mainboard
over the mounting brackets.

Ensure that your case has an I/O template that supports the I/O ports and
expansion slots on y our mainboard.

CChheecckkiinngg JJuummppeerr SSeettttiinnggss

This section explains how to set jumpers for correct configuration of the main­board.

Setting Jumpers

Use the mainboard jumpers to set system configuration options. Jumpers with
more than one pin are numbered. When s etting the jumpers, ensure that the
jumper caps are placed on the correct pins.

The illustrations below show a 2-pin jumper.
When the jumper cap is placed on both pins,
the jumper is SHORT. If you remove the
jumper cap, or place the jumper cap on just
one pin, the jumper is OPEN.

Short Open

This illustration shows a 3-pin
jumper. Pins 1 and 2 are SHORT.

1

2

8

3

Checking Jumper Settings

The following illustration shows the location of the mainboard jumpers. Pin 1 is
labeled.

Jumper Settings

Jumper Type Description Setting (default)

JP1 3-pin Clear CMOS 1-2: No rmal

2-3: Clear

JP3 2-pin BIOS protection Open: Disable

Short: Enable

FID JP1 5-pin CPU ratio selec-

tor

Jumper 1 – enables you to clear the BIOS. Follow these instructions:

1. Turn the system off.

2. Short pins 2 and 3 on JP1.

3. Return the jumper to the normal setting.

4. Turn the system on. The BIOS is returned to the default settings.

Jumper 3 – enables you to prevent the BIOS from being updated (flashed).

Set the jumper to disabled if you are going to update your BIOS. After updat­ing the BIOS, return it to the default setting (enabled). For instructions on
updating the BIOS refer to Chapter 3.

Refer to the table on the next page.

JP1

1

JP3

9

Jumper FIDJP1 – se ts the CPU ratio. Refer to the following table.

1-2 3-4 5-6 7-8 9-10 Ratio

Short — — — — By CPU
Open Open Open Open Open 10.5
Open Open Open Open Short 6.5
Open Open Open Short Open 8.5
Open Open Open Short Short 12.5
Open Open Short Open Open 9.5
Open Open Short Open Short 5.5
Open Open Short Short Open 7.5
Open Open Short Short Short 11.5
Open Short Open Open Open 10.0
Open Short Open Open Short 6.0
Open Short Open Short Open 8.0
Open Short Open Short Short 12.0
Open Short Short Open Open 9.0
Open Short Short Open Short 5.0
Open Short Short Short Open 7.0
Open Short Short Short Short 11.0

10

CCoonnnneeccttiinngg CCaassee CCoommppoonneennttss

After you have installed the mainboard into a case, you can begin connecting
the mainboard components. Refer to the following:

1. Connect the case
power supply con­nector to ATX1.

2. Connect the CPU
cooling fan cable to
CPUFAN1.

3. Connect the case
cooling fan connec­tor to CASEFAN1.

4. Connect the case
speaker cable to
SPKR1.

5. Connect the case
LED cable to SJ1.

SPKR1: Internal speaker pin connections

Pin Signal Name

1

SPKR

2

NC

3

Ground

4

+5V

SJ1: Single color LED header

Pin Signal Name

1

Single color LED -

2

Single color LED -

3

Single color LED+

ACPI LED function:

SJ1

1

S0 S1 S3 S4/S5

Light Blinking Blinking Dark

11

2 1

Reset Switch

The Panel Connectors

The panel connectors provide a standard set of switch and LED connectors
commonly found on ATX or micro-ATX cases. Refer to the table below for
information:

PANEL1

Device Pins

Empty 10

N/C 9

Power ON/OFF 6, 8

Reset Switch 5, 7

Green LED

+2, -4

Power Switch
(Pins 6, 8)

Indicator

HDD LED +1, -3

Green LED

Note: The plus sign (+) indicates a pin which must be connected to a positive

(Pins 2, 4)

voltage.

Empty
(Pin 10)

10 9

N/C
(Pin 9)

(Pins 5, 7)

HDD LED
(Pins 1, 3)

IInnssttaalllliinngg HHaarrddwwaarree

Installing the Processor

Caution: When installing a CPU heatsink and cooling fan make sure that
you DO NOT scratch the mainboard or any of the surface-mount resistors
with the clip of the cooling fan. If the clip of the cooling fan scrapes
across the mainboard, you may cause serious damage to the mainboard
or its components.

On most mainboards, there are small surface-mount resistors near the
processor socket, which may be damaged if the cooling fan is carelessly
installed.

Avoid using cooling fans with sharp edges on the fan casing and the
clips. Also, install the cooling fan in a well-lit work area so that you can
clearly see the mainboard and processor socket.

Before installing the Processor

This mainboard automatically determines the CPU clock frequency and sys­tem bus frequency for the processor. You may be able to change these
automatic settings by making changes to jumpers on the mainboard, or
changing the settings in the system Setup Utility. We strongly recommend that
you do not overclock processors or other components to run faster than their
rated speed.

12

Warning: Overclocking components can adversely affect the reliability of
the system and introduce errors into your system. Overclocking can per­manently damage the mainboard by generating excess heat in
components that are run beyond the rated limits.

This mainboard has a Socket 462 processor socket. When choosing a proc­essor, consider the performance requirements of the system. Performance is
based on the processor design, the clock speed and system bus frequency of
the processor, and the quantity of internal cache memory and external cache
memory.

CPU Installation Procedure

The following illustration shows CPU installation components:

Note: The pin A-1 corner on the CPU and socket is empty.

Follow these instructions to install the CPU:

1. Pull the CPU socket locking lever away from the socket to unhook it and raise
the locking lever to the upright position.

2. Match the corner on the CPU marked with an arrow with pin A-1 on the CPU
socket (the corner with the pinhole noticeably missing). Insert the processor
into the socket. Do not use force.

3. Swing the locking lever down and hook it under the latch on the edge of the
socket.

4. Apply thermal grease to the top of the CPU.

5. Lower the CPU cooling fan/heatsink assembly onto the CPU

13