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Disclaimer:Disclaimer:
Disclaimer:
Disclaimer:Disclaimer:
Specifications and information contained in this guide are furnished for informational
use only and subject to change without notice, and should not be constructed as a
commitment by ASRock. ASRock assumes no responsibility for any errors or
omissions that may appear in this guide.
With respect to the contents of this guide, ASRock does not provide warranty of any
kind, either expressed or implied, including but not limited to the implied warranties or
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In no event shall ASRock, its directors, officers, employees, or agents be liable for
any indirect, special, incidental, or consequential damages (including damages for
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even if ASRock has been advised of the possibility of such damages arising from
any defect or error in the guide or product.
13 Chassis Fan Connector (CHA_FAN1)28 Internal Audio Connector: CD1 (Black)
14 Power LED Connector (PWR_LED1)29 Internal Audio Connector: AUX1 (White)
15 System Panel Connector (P ANEL1)30 FID Jumpers (FID0, FID1, FID2, FID3, FID4)
ASRock K7S41 / K7S41GX Motherboard
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ASRock I/OASRock I/O
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1Parallel Port6Line Out (Lime)
2RJ-45 Port7USB 2.0 Ports
3Game Port8VGA Port
4Microphone (Pink)9PS/2 Keyboard Port (Purple)
5Line In (Light Blue)10PS/2 Mouse Port (Green)
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(K7S41 / K7S41GX)(K7S41 / K7S41GX)
(K7S41 / K7S41GX)
(K7S41 / K7S41GX)(K7S41 / K7S41GX)
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ASRock K7S41 / K7S41GX Motherboard
1. Introduction1. Introduction
1. Introduction
1. Introduction1. Introduction
Thank you for purchasing ASRock K7S41 / K7S41GX motherboard, a reliable
motherboard produced under ASRock’s consistently stringent quality control. It
delivers excellent performance with robust design conforming to ASRock’s commitment to quality and endurance.
This Quick Installation Guide contains introduction of the motherboard and stepby-step installation guide. More detailed information of the motherboard can be
found in the user manual presented in the Support CD.
Because the motherboard specifications and the BIOS software might be
updated, the content of this manual will be subject to change without
notice. In case any modifications of this manual occur, the updated
version will be available on ASRock website without further notice.
You may find the latest memory and CPU support lists on ASRock
website as well.
ASRock website http://www.asrock.com
1.1 Package Contents1.1 Package Contents
1.1 Package Contents
1.1 Package Contents1.1 Package Contents
ASRock K7S41 or K7S41GX Motherboard
(Micro ATX Form Factor: 9.6-in x 7.8-in, 24.4 cm x 19.8 cm)
ASRock K7S41 / K7S41GX Quick Installation Guide
ASRock K7S41 / K7S41GX Support CD
One 80-conductor Ultra ATA 66/100/133 IDE Ribbon Cable
One Ribbon Cable for a 3.5-in Floppy Drive
One ASRock I/OTM Shield
One COM Port Bracket
One ASRock M R Card (Option al)
ASRock K7S41 / K7S41GX Motherboard
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1.2 Specifications1.2 Specifications
1.2 Specifications
1.2 Specifications1.2 Specifications
Platform:Micro ATX Form Factor: 9.6-in x 7.8-in, 24.4 cm x 19.8 cm
CPU:Supports Socket A (462 pins) for
AMD Athlon
Chipsets:North Bridge (K7S41):
North Bridge (K7S41GX):
South Bridge:
Memory:2 DDR DIMM Slots: DDR1 and DDR2
IDE:IDE1: ATA 133 / Ultra DMA Mode 6,
IDE2: AT A 133 / Ultra DMA Mode 6,
Supports up to 4 IDE devices
Floppy Port:Supports up to 2 floppy disk drives
Audio:5.1 channels AC’97 Audio
LAN:Speed: 802.3u (10/100 Ethernet), supports Wake-On-LAN
Hardware Monitor: CPU temperature sensing,
Chassis temperature sensing,
CPU overheat shutdown to protect CPU life
(ASRock U-COP)(see CAUTION 1),
CPU fan tachometer, Chassis fan tachometer,
Voltage monitoring: +12V, +5V, +3V, Vcore
PCI slots:2 slots with PCI Specification 2.2
AGP slot:1 AGP slot, supports 1.5V, 8X/4X AGP card (see CAUTION 2)
AMR slot:1 slot, supports ASRock MR card (Optional)
USB 2.0:6 USB 2.0 ports:
includes 4 default USB 2.0 ports on the rear panel,
plus one connector to support 2 additional USB 2.0 ports
(see CAUTION 3)
TM
XP / DuronTM processor
SiS 741, FSB@400 MHz, AGP 8X/4X
SiS 741GX, FSB@333 MHz, AGP 8X/4X
SiS 963L, supports USB 2.0, ATA 133
K7S41:
PC3200 (DDR400) / PC2700 (DDR333) / PC2100 (DDR266),
Max. 2GB;
* For PC3200 (DDR400), please refer to the latest memory
1 VG A port, 1 parallel port: ECP/EPP support,
1 RJ 45 port, 4 default USB 2.0 ports,
1 Game port,
Audio Jack: Line Out / Line In / Microphone In
BIOS:AMI legal BIOS, “Plug and Play” support,
ACPI 1.1 compliance wake up events,
SMBIOS 2.3.1 support,
CPU frequency stepless control
(only for advanced users’ reference, see CAUTION 4)
OS:Microsoft® Windows® 98 SE / ME / 2000 / XP compliant
CAUTION!
1. While CPU overheat is detected, the system will automatically shutdown.
Please che ck if the CPU fan on the motherboard functions properly before
you resume the system. To improve heat dissipation, remember to spray
thermal grease between the CPU and the heatsink when you install the PC
system.
2. Do NOT use a 3.3V AGP card on the AGP slot of this motherboard!
It may cause permanent damage!
3. Power Management for USB 2.0 works fine under Microsoft® Windows
XP SP1/2000 SP4. It may not work properly under Microsoft® Windows
98/ME. Please refer to Microsoft® official document at
http://www.microsoft.com/whdc/hwdev/bus/USB/USB2support.mspx
4. Although this motherboard offers stepless control, it is not recommended
to perform over clocking. Frequencies other than the recommended CPU
bus frequencies may cause the instability of the system or damage the
CPU. The CPU host frequency of this motherboard is determined by the
jumper-setting. You must set the FSB jumper according to your AMD CPU
before you use the “Manual” option as the FSB setting in BIOS setup to
perform over clocking. Please check page 24 of the User Manual in the
Support CD for details.
Take note of the following precautions before you install motherboard components or change any motherboard settings.
1. Unplug the power cord from the wall socket before touching any
component. Failure to do so may cause severe damage to the
motherboard, peripherals, and/or components.
2. To avoid damaging the motherboard components due to static
electricity, NEVER place your motherboard directly on the carpet
or the like. Also remember to use a grounded wrist strap or touch
a safety grounded object before you handle components.
3. Hold components by the edges and do not touch the ICs.
4. Whenever you uninstall any component, place it on a grounded
antstatic pad or in the bag that comes with the component.
2.1 CPU Installation2.1 CPU Installation
2.1 CPU Installation
2.1 CPU Installation2.1 CPU Installation
Step 1. Unlock the socket by lifting the lever up to a 90° angle.
Step 2. Position the CPU directly above the socket such that its marked corner
matches the base of the socket lever.
Step 3. Carefully insert the CPU into the socket until it fits in place.
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The CPU fits only in one correct orientation. DO NOT force the CPU
into the socket to avoid bending of the pins.
Step 4. When the CPU is in place, press it firmly on the socket while you push
down the socket lever to secure the CPU. The lever clicks on the side tab
to indicate that it is locked.
Step 5. Install CPU fan and heatsink. For proper installation, please kindly refer to
the instruction manuals of your CPU fan and heatsink vendors.
ASRock K7S41 / K7S41GX Motherboard
2.2 Installation of Memory Modules (DIMM)2.2 Installation of Memory Modules (DIMM)
2.2 Installation of Memory Modules (DIMM)
2.2 Installation of Memory Modules (DIMM)2.2 Installation of Memory Modules (DIMM)
K7S41 / K7S41GX motherboard provides two 184-pin DDR (Double Data Rate) DIMM
slots.
Please make sure to disconnect power supply before adding or removing
DIMMs or the system components.
Step 1. Unlock a DIMM slot by pressing the retaining clips outward.
Step 2. Align a DIMM on the slot such that the notch on the DIMM matches the break
on the slot.
The DIMM only fits in one correct orientation. It will cause permanent
damage to the motherboard and the DIMM if you force the DIMM into the
slot at incorrect orientation.
Step 3. Firmly insert the DIMM into the slot until the retaining clips at both ends fully
snap back in place and the DIMM is properly seated.
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2.3 Expansion Slots (PCI, AMR, and AGP Slots)2.3 Expansion Slots (PCI, AMR, and AGP Slots)
2.3 Expansion Slots (PCI, AMR, and AGP Slots)
2.3 Expansion Slots (PCI, AMR, and AGP Slots)2.3 Expansion Slots (PCI, AMR, and AGP Slots)
There are 2 PCI slots, 1 AMR slot, and 1 AGP slot on K7S41 / K7S41GX motherboard.
PCI slots: PCI slots are used to install expansion cards that have the 32-bit PCI
interface.
AMR slot: The AMR slot is used to insert an ASRock MR card (optional) with
v.92 Modem functionality.
AGP slot: The AGP slot is used to install a graphics card. The ASRock AGP slot ha s
a special design of clasp that can securely fasten the inserted graphics
card.
Please do NOT use a 3.3V AGP card on the AGP slot of this motherboard!
It may cause permanent damage! For the voltage information of your
graphics card, please check with the graphics card vendors.
Installing an expansion cardInstalling an expansion card
Installing an expansion card
Installing an expansion cardInstalling an expansion card
Step 1. Before installing the expansion card, please make sure that the power
supply is switched off or the power cord is unplugged. Please read the
documentation of the expansion card and make necessary hardware
settings for the card before you start the installation.
Step 2. Remove the bracket facing the slot that you intend to use. Keep the screw
for later use.
Step 3. Align the card connector with the slot and press firmly until the card is
completely seated on the slot.
Step 4. Fasten the card to the chassis with screws.
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ASRock K7S41 / K7S41GX Motherboard
2.4 Jumpers Setup2.4 Jumpers Setup
2.4 Jumpers Setup
2.4 Jumpers Setup2.4 Jumpers Setup
The illustration shows how jumpers are
setup. When the jumper cap is placed on
pins, the jumper is “SHORT”. If no jumper ca p
is placed on the pins, the jumper is “OPEN”.
The illustration shows a 3-pin jumper whose
pin1 and pin2 are “SHORT” when jumper cap
ShortOpen
is placed on these 2 pins.
JumperSetting
FSB SelectK7S41:
Jumpers
(see p.2/p.3 No. 27)
K7S41GX:
Note: The setting of the CPU front side bus frequency of this motherboard is by means of the
adjustment of jumper-setting. You must set the FSB jumper according to your AMD CPU
before you use the “Manual” option as the FSB setting in BIOS setup to perform over
clocking. Please follow the figures above to set the CPU front side bus frequency.
PS2_USB_PWR1Short pin2, pin3 to enable
(see p.2/p.3 No. 1)+5VSB (standby) for PS/2 or
USB wake up events.
Note: To select +5VSB, it requires 2 Amp and higher standby current provided by power
supply.
(see p.2/p.3 No. 24)
JR1
JL1(see p.2/p.3 No. 23)
Note: If the jumpers JL1 and JR1 are short (see the figure above), both front panel and rear
Note: CLRCMOS1 and CLRCMOS2 allow you to clear the data in CMOS. The data in CMOS
includes system setup information such as system password, date, time, and system
setup parameters. There are 2 ways for you to clear and reset the system parameters to
the default setup. Please turn off the computer and unplug the power cord, then you may
either short the solder points on CLRCMOS1 by using metal material, e.g., a paper clip for
3 seconds; or you may use a jumper cap to short the pin on CLRCMOS2 for 3 seconds.
Please remember to remove the paper clip or the jumper cap after clearing the CMOS. If
you need to clear the CMOS when you just finish updating the BIOS, you must boot up the
system first, and then shut it down before you do the clear-CMOS action.
2-pin jumpersolder points
FID Jumpers
(FID0, FID1, FID2, FID3, FID4)
(see p.2/p.3 No. 30)
Note: The set of FID jumpers are designed to adjust the multiplier of CPU. For detailed
information, please refer to page 15 of user Manual in the Support CD.
2.5 Connectors2.5 Connectors
2.5 Connectors
2.5 Connectors2.5 Connectors
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Connectors are NOT jumpers. DO NOT place jumper caps over these
connectors. Placing jumper caps over the connectors will cause permanent damage of the motherboard!
ConnectorFigureDescription
F DD Connector
(33-pin FLOPPY1)
(see p.2/p.3 No. 17)
the red-striped side to Pin1
Note: Make sure the red-striped side of the cable is plugged into Pin1 side of the
connector.
ASRock K7S41 / K7S41GX Motherboard
Primary IDE Connector (Blue)Secondary IDE Connector (Black)
(39-pin IDE1, see p.2/p.3 No. 8)(39-pin IDE2, see p.2/p.3 No. 7)
connect the blue end
to the motherboard
80-conductor, ATA 66/100/133 cable
connect the black end
to the IDE devices
Note: If you use only one IDE device on this motherboard, please set the IDE
device as “Master”. Please refer to the instruction of your IDE device vendor
for the details. Besides, to optimize compatibility and performance, please
connect your hard disk drive to the primary IDE connector (IDE1, blue) and
CD-ROM to the secondary IDE connector (IDE2, black).
USB 2.0 ConnectorThere are 4 default USB 2.0
(9-pin USB45)ports on the rear panel. If the
(see p.2/p.3 No. 18)rear USB ports are not sufficient,
this USB 2.0 connector is
available to support 2 additional
USB 2.0 ports.
Infrared Module ConnectorThis connector supports an
Internal Audio ConnectorsThese connectors allow you to
(4-pin CD1, 4-pin AUX1)receive stereo audio input from
(CD1: see p.2/p.3 No. 28)sound sources such as a CD-
(AUX1: see p.2/p.3 No. 29)ROM, D VD-ROM, TV tuner card,
AUX1
CD1
or MPEG card.
Front Panel Audio ConnectorThis is an interfa ce for front pa nel
(9-pin AUDIO1)audio cable that allows conve-
(see p.2/p.3 No. 25)nient connection and control of
audio devices.
ASRock K7S41 / K7S41GX Motherboard
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System Panel ConnectorThis connector accommodates
(9-pin PANEL1)several system front panel
(see p.2/p.3 No. 15)functions.
Chassis Speaker ConnectorPlease connect the chassis
(4-pin SPEAKER 1)speaker to this connector.
(see p.2/p.3 No. 16)
Chassis Fan ConnectorPlease connect a chassis fan
(3-pin CHA_FAN1)cable to this connector and
(see p.2/p.3 No. 13)match the black wire to the
ground pin.
CPU Fan ConnectorPlease connect a CPU fan cable
(3-pin CPU_FAN1)to this connector and match the
(see p.2/p.3 No. 2)black wire to the ground pin.
ATX Power ConnectorPlease connect an ATX power
(20-pin ATXPW R1)supply to this connector.
(see p.2/p.3 No. 6)
Serial port connectorThis COM1 connector supports
(9-pin COM1)a serial port module.
(see p.2/p.3 No. 22)
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Power LED ConnectorPlease connect a 3-pin power
(3-pin PWR_LED1)LED cable to this connector.
(see p.2/p.3 No. 14)
ASRock K7S41 / K7S41GX Motherboard
3. BIOS Information3. BIOS Information
3. BIOS Information
3. BIOS Information3. BIOS Information
The Flash Memory on the motherboard stores BIOS Setup Utility. When you start up
the computer, please press <F2> during the Power-On-Self-Test (POST) to enter
BIOS Setup utility; otherwise, POST continues with its test routines. If you wish to
enter BIOS Setup after POST, please restart the system by pressing <Ctl> + <Alt> +
<Delete>, or pressing the reset button on the system chassis.
The BIOS Setup program is designed to be user-friendly. It is a menu-driven program,
which allows you to scroll through its various sub-menus and to select among the
predetermined choices. For the detailed information about BIOS Setup, please refer
to the User Manual (PDF file) contained in the Support CD.
4. Software Suppor4. Software Suppor
4. Software Suppor
4. Software Suppor4. Software Suppor
This motherboard supports various Microsoft® Windows® operating systems: 98 SE/
ME / 2000 / XP. The Support CD that came with the motherboard contains necessary
drivers and useful utilities that will enhance motherboard features.
To begin using the Support CD, insert the CD into your CD-ROM drive. It will display
the Main Menu automatically if “AUTORUN” is enabled in your computer. If the Main
Menu does not appear automatically, locate and double-click on the file ASSETUP.
EXE from the BIN folder in the Support CD to display the menus.
“PC-DIY Live Demo”
ASRock presents you a multimedia PC-DIY live demo, which shows you
how to install your own PC system step by step. To see this demo program,
you can run Microsoft® Media Player® to play the file. You can find the file in
the Support CD through the following path:
..\ MPEGAV \ AVSEQ01.DAT
t CD informationt CD information
t CD information
t CD informationt CD information
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