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Disclaimer:Disclaimer:
Disclaimer:
Disclaimer:Disclaimer:
Specifications and information contained in this manual 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 manual.
With respect to the contents of this manual, ASRock does not provide warranty of
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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
loss of profits, loss of business, loss of data, interruption of business and the like),
even if ASRock has been advised of the possibility of such damages arising from a n y
defect or error in the manual or product.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
Thank you for purchasing ASRock 939A8X-M 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.
In this manual, chapter 1 and 2 contain introduction of the motherboard and step-bystep guide to the hardware installation. Chapter 3 and 4 contain the configuration
guide to BIOS setup and information of 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
1.11.1
Package ContentsPackage Contents
1.1
Package Contents
1.11.1
Package ContentsPackage Contents
1 x ASRock 939A8X-M Motherboard
(Micro ATX Form Factor: 9.6-in x 8.6-in, 24.4 cm x 21.8 cm)
1 x ASRock 939A8X-M Quick Installation Guide
1 x ASRock 939A8X-M Support CD
1 x Ultra ATA 66/100/133 IDE Ribbon Cable (80-conductor)
1 x 3.5-in Floppy Drive Ribbon Cable
1 x Serial ATA (SATA) Data Cable
1 x Serial ATA (SATA) HDD Power Cable (Optional)
1 x ASRock 8CH I/O
http://www.asrock.com
55
5
55
1.21.2
SpecificationsSpecifications
1.2
Specifications
1.21.2
SpecificationsSpecifications
Platform:Micro ATX Form Factor: 9.6-in x 8.6-in, 24.4 cm x 21.8 cm
CPU:939-Pin Socket Supporting AMD AthlonTM 64 / 64FX Processor
Supports AMD’s Cool ‘n’ QuietTM T e chnology (see CAUTION 1)
Chipset:Bridge: ULi (ALi) M1689, FSB @ 1000 MHz
Memory:4 x DDR DIMM Slots:
4 DIMMs support PC3200 (DD R 400) / PC2700 (DDR 333) /
PC2100 (DDR 266), Max. 4GB
IDE:IDE1: ATA 133 / Ultra DMA Mode 6
IDE2: ATA 133 / Ultra DMA Mode 6
Support up to 4 IDE devices
Serial ATA:2 x SATA connectors
Support 1.5Gb/s data transfer rate
Floppy Port:Supports up to 2 floppy disk drives
Audio:7.1 channels AC’97 Audio
LAN:Speed: 802.3u (10/100 Ethernet), supports Wake-On-LAN
Hardware Monitor: CPU temperature sensing
Motherboard temperature sensing
CPU overheat shutdown to protect CPU life
(ASRock U-COP)(see CAUTION 2)
CPU fan tachometer
Chassis fan tachometer
Voltage monitoring: +12V, +5V, +3.3V, Vcore
PCI Slots:3 x PCI slots, PCI specification 2.3
AGP Slot:1 x AGP slot
Supports 1.5V, 8X / 4X AGP card (see CAUTION 3)
USB 2.0:8 x USB 2.0 ports:
4 ready-to-use USB 2.0 ports on the I/O panel,
plus 2 on-board headers supporting 4 extra USB 2.0 ports
(see CAUTION 4)
ASRock 8CH I/O:1 PS/2 Mouse Port, 1 PS/2 Keyboard Port
1 Serial Port: COM1
1 Parallel Port (ECP/EPP Support)
4 Ready-to-Use USB 2.0 Ports
1 RJ-45 Port
Audio Jack: Side Speaker / Rear Speaker / Central/Bass /
Line In / Front Speaker / Microphone
(see CAUTION 5)
66
6
66
BIOS:AMI BIOS
Supports “Plug and Play”
ACPI 1.1 compliance wake up events
SMBIOS 2.3.1 support
CPU frequency stepless control
(only for advanced users’ reference, see CAUTION 6)
OS:Microsoft® Windows® 98SE / ME / 2000 / XP compliant
CAUTION!
1. For power-saving sake, it is strongly recommended to enable AMD’s Cool ‘n’
2. While CPU overheat is detected, the system will automatically shutdown.
3. Do NOT use a 3.3V AGP card on the AGP slot of this motherboard!
4. Power Management for USB 2.0 works fine under Microsoft® Windows® XP
5. For microphone input, this motherboard supports mono modes. For audio
6. Although this motherboard offers stepless control, it is not recommended
TM
Quiet
technology under Windows system. See APPENDIX on page 37 to
enable AMD’s Cool ‘n’ Quiet
Before you resume the system, please check if the CPU fan on the
motherboard functions properly and unplug the power cord, then plug it
back again. To improve heat dissipation, remember to spray thermal
grease between the CPU a nd the heatsink when you in stall the PC system.
It may cause permanent damage!
SP1 / 2000 SP4. It may not work properly under Microsoft
ME.
output, this motherboard supports 2-channel, 4-channel, 6-channel, and 8channel modes. Please check the table on page 9 for proper connection.
to perform over-clocking. Frequencies other than the recommended CPU
FSB frequencies may cause the instability of the system or damage the
CPU.
TM
technology.
®
Windows® 98 /
77
7
77
1.31.3
Motherboard LayoutMotherboard Layout
1.3
Motherboard Layout
1.31.3
Motherboard LayoutMotherboard Layout
1PS2_USB_PWR1 Jumper14 USB 2.0 Header (USB67, Blue)
2 Infrared Module Header (IR1)15 USB 2.0 Header (USB_H45, Blue)
3 Flash Memory16 Primary Serial A T A Connector (SAT A1)
4 Floppy Connector (FLOPPY1)17 Secondary Serial ATA Connector (SA T A 2)
5 CPU Fan Connector (CPU_FAN1)18 Bridge Controller
6 2 x 184-pin DDR DIMM Slots19 Game Port Header (GAME1)
7 2 x 184-pin DDR DIMM Slots21 Front Panel Audio Header (AUDIO1)
(Dual Channel B: DDR3, DDR4; Black)22 PCI Slots (PCI1 - 3)
8 Secondary IDE Connector (IDE2, Black)23 AGP Slot (1.5V_AGP1)
9 Primary IDE Connector (IDE1, Blue)24 Internal Audio Connector: CD1 (Black)
10 Clear CMOS Jumper (CLRTC1)25 ATX Power Connector (ATXPWR1)
11 Chassis Fan Connector (CHA_FAN1)26 CPU Heatsink Retention Module
12 System Pa nel Hea der (PANEL1)27 939-Pin CPU Socket
13 Chassis Speaker Header (SPEAKER 1)2 8 A TX 12V Connector (ATX12V1)
88
8
88
1.41.4
ASRock 8CH I/OASRock 8CH I/O
1.4
ASRock 8CH I/O
1.41.4
ASRock 8CH I/OASRock 8CH I/O
12
3
4
5
13
1Parallel Port 8 Microphone (Pink)
2RJ-45 Port 9 USB 2.0 Ports (USB01)
3Side Speaker (Gray)10 USB 2.0 Ports (USB23)
4Rear Speaker (Black)11 Serial Port: COM1
5Central / Bass (Orange)12 PS/2 Keyboard Port (Purple)
6Line In (Light Blue)13 PS/2 Mouse Port (Green)
*7Front Speaker (Lime)
* If you use 2-channel speaker, please connect the speaker’s plug into “Front Speaker Jack”. See
the table below for connection details in accordance with the type of speaker you use.
Audio Output Channels Front Speaker Rear SpeakerCentral / BassSide Speaker
12
TABLE for Audio Output Connection
2V-----4VV---6VVV-8VVVV
11
(No. 7)(No. 4)(No. 5)(No. 3)
910
6
7
8
99
9
99
2.2.
InstallationInstallation
2.
Installation
2.2.
InstallationInstallation
939A8X-M is a Micro ATX form factor (9.6-in x 8.6-in, 24.4 cm x 21.8 cm) motherboard.
Before you install the motherboard, study the configuration of your chassis to ensure that the motherboard fits into it.
Take note of the following precautions before you install motherboard
components or change any motherboard settings.
Before you install or remove any component, ensure that the
power is switched off or the power cord is detached from the
power supply. Failure to do so may cause severe damage to the
motherboard, peripherals, and/or components.
1.Unplug the power cord from the wall socket before touching any
component.
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 antistatic pad or in the bag that comes with the component.
5.When pla cing screws into the screw holes to secure the motherboard
to the chassis, please do not over-tighten the screws! Doing so may
damage the motherboard.
1010
10
1010
2.12.1
CPU InstallationCPU Installation
2.1
CPU Installation
2.12.1
CPU InstallationCPU 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.
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.
Lever 90° Up
STEP 1:
Lift Up The Socket Lever
2.22.2
Installation of CPU Fan and HeatsinkInstallation of CPU Fan and Heatsink
2.2
Installation of CPU Fan and Heatsink
2.22.2
Installation of CPU Fan and HeatsinkInstallation of CPU Fan and Heatsink
After you install the CPU into this motherboard, it is necessary to install a
larger heatsink and cooling fan to dissipate heat. You also need to spray
thermal grease between the CPU and the heatsink to improve heat
dissipation. Make sure that the CPU and the heatsink are securely fastened and in good contact with each other. Then connect the CPU fan to
the CPU FAN connector (CPU_FAN1, see Page 8, No. 5). For proper
installation, please kindly refer to the instruction manuals of the CPU fan
and the heatsink.
CPU Golden Triangle
Socket Corner
STEP 2 / STEP 3:
Match The CPU Golden Triangle
To The Socket Corner
STEP 4:
Push Down And Lock
The Socket Lever
1111
11
1111
2.3 Installation of Memory Modules (DIMM)2.3 Installation of Memory Modules (DIMM)
2.3 Installation of Memory Modules (DIMM)
2.3 Installation of Memory Modules (DIMM)2.3 Installation of Memory Modules (DIMM)
939A8X-M motherboard provides four 184-pin DDR (Double Data Rate) DIMM slots,
and supports Dual Channel Memory Technology. For dual channel configuration, you
always need to install identical (the same brand, speed, size and chip-type) DDR
DIMM pair in the slots of the same color. In other words, you have to install identical
DDR DIMM pair in Dual Channel A (DDR1 and DDR2; Blue slots; see p.8 No. 6) oridentical DDR DIMM pair in Dual Channel B (DDR3 and DDR4; Black slots; see p.8
No. 7), so that Dual Channel Memory Te chnology can be activated. This motherboard
also allows you to install four DDR DIMMs for dual channel configuration, and please
install identical DDR DIMMs in all four slots. You may refer to the Dual Channel
Memory Configuration Table below.
* For the configuration (3), plea se in stall identical DDR DIMMs in all four slots.
* It is recommended to install DDR3 and DDR4 (bla ck slots) first. Then to install
in DDR1 and DDR2. (That is, to populate DDR DIMM from the far side of CPU
towards to the near side of CPU.)
1. If you want to install two different memory modules, for optimal
compatibility and reliability, it is recommended to install them in the
slots of different color. In other words, install them either in DDR1
and DDR3.
2. If only one memory module or three memory modules are installed
in the DDR DIMM slots on this motherboard, it is unable to activate
the Dual Channel Memory Technology.
3. If a pair of memory modules is NOT installed in the same Dual
Channel, for example, installing a pair of memory modules in DDR1
and DDR3, it is unable to activate the Dual Channel Memory Technology .
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