Copyright  Notice:
Copyright  Notice:
Copyright  Notice:
Copyright  Notice:
Copyright  Notice:
No part of this installation guide may be reproduced, transcribed, transmitted, or
translated in any language, in any form or by any means, except duplication of
documentation by the purchaser for backup purpose, without written consent of
ASRock Inc.
Products and corporate names appearing in this guide may or may not be registered
trademarks or copyrights of their respective companies, and are used only for
identification or explanation and to the owners’ benefit, without intent to infringe.
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
conditions of merchantability or fitness for a particular purpose.
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 any
defect or error in the guide 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
may cause undesired operation.
ASRock Website: http://www.asrock.com
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Published August 2005
Copyright©2005 ASRock INC. All rights reserved.
ASRock  939NF4G-SATA2  Motherboard
11111
Motherboard  L
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Motherboard  L
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PS2_USB_PW1  Jumper
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ATX  12V  Power  Connector  (ATX12V1)
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North  Bridge  Controller
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CPU  Heatsink  Retention  Module
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939-Pin  CPU  Socket
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2 x 184-pin  DDR  DIMM  Slots
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(Dual Channel A: DDR1, DDR2; Blue)
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2 x 184-pin  DDR  DIMM  Slots
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(Dual Channel B: DDR3, DDR4; Black)
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Secondary  IDE  Connector  (IDE2, Black)
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Primary  IDE  Connector  (IDE1, Blue)
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CPU  Fan  Connector  (CPU_FAN1)
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South  Bridge  Controller
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Secondary  Serial  ATAII  Connector  (SATAII_2, red) 29
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Primary  Serial  ATAII  Connector  (SATAII_1, red)
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Chassis  Speaker  Header  (SPEAKER 1)
Chassis  Fan  Connector  (CHA_FAN1)
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System  Panel  Header  (PANEL1)
USB 2.0  Header  (USB67, Blue)
USB 2.0  Header  (USB45, Blue)
Clear  CMOS  Jumper  (CLRCMOS1)
Infrared  Module  Header  (IR1)
Floppy  Connector  (FLOPPY1)
Flash  Memory
Game  Port  Header  (GAME1)
PCI  Express  x 1 Slot  (PCIE2)
AMR  Slot  (AMR1)
Front  Panel  Audio  Header  (AUDIO1)
JR1  JL1 Jumper
2 x PCI  Slots  (PCI1- 2)
PCI  Express  x 16 Slot  (PCIE1)
Internal  Audio  Connector: CD1 (Black)
ATX  Power  Connector  (ATXPWR1)
Serial  Port  Connector  (COM1)
22222
ASRock  939NF4G-SATA2  Motherboard
ASRock  8CH  I/O
ASRock  8CH  I/O
ASRock  8CH  I/O
ASRock  8CH  I/O
ASRock  8CH  I/O
1
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      *7
Parallel  Port
RJ-45  Port
Side  Speaker  (Gray)
Rear  Speaker  (Black)
Central / Bass  (Orange)
Line  In  (Light Blue)
Front  Speaker  (Lime)
 8 Microphone  (Pink)
USB 2.0  Ports  (USB01)
 9
10 USB 2.0  Ports  (USB23)
11
12
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VGA Port
PS/2  Keyboard  Port  (Purple)
PS/2  Mouse  Port  (Green)
* 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.
TABLE for Audio Output  Connection
Audio Output Channels Front Speaker Rear Speaker
Central / Bass
Side Speaker
(No. 7)
(No. 4)
(No. 5)
(No. 3)
2
4
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8
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ASRock  939NF4G-SATA2  Motherboard
33333
Introduction
Introduction
Introduction
Introduction
Introduction
1.1.1.1.1.
Thank you for purchasing ASRock 939NF4G-SATA2 motherboard, a reliable
motherboard produced under ASRock’s consistently stringent quality control. It de-
livers excellent performance with robust design conforming to ASRock’s commit-
ment to quality and endurance.
This Quick Installation Guide contains introduction of the motherboard and step-by-
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
Package  Contents
Package  Contents
Package  Contents
Package  Contents
Package  Contents
1.11.11.11.11.1
1 x ASRock 939NF4G-SATA2 Motherboard
(Micro ATX Form Factor: 9.6-in x 8.8-in, 24.4 cm x 22.4 cm)
1 x ASRock 939NF4G-SATA2 Quick Installation Guide
1 x ASRock 939NF4G-SATA2 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 (Optional)
1 x Serial ATA (SATA) HDD Power Cable (Optional)
1 x ASRock 8CH I/O Shield
1 x COM Port Bracket
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44444
ASRock  939NF4G-SATA2  Motherboard
1.21.21.21.21.2
Specifications
Specifications
Specifications
Specifications
Specifications
 Platform
 CPU
 Chipset
  Memory
 Hybrid Booster
 Expansion Slot
 Graphics
 Audio
 LAN
 Rear Panel I/O
- Micro ATX Form Factor: 9.6-in x 8.8-in, 24.4 cm x 22.4 cm
- 939-Pin Socket Supporting AMD AthlonTM 64 / 64FX / 64X2
  Processor
- Supports AMD’s Cool ‘n’ QuietTM Technology
  (see CAUTION 1)
- FSB 1 GHz (2.0 GT/s)
- Supports Untied Overclocking Technology (see CAUTION 2)
- Supports Hyper-Transport Technology
- Northbridge: nVidia® GeForce 6100
- Southbridge: nVidia® nForce 410 MCP
- Dual Channel DDR Memory Technology
  (see CAUTION 3)
- 4 x DDR DIMM slots
- Support DDR400 / 333 / 266
- Max. capacity: 4GB
- CPU Frequency Stepless Control (see CAUTION 4)
- CPU Voltage
- CPU Multiplier
- ASRock U-COP (see CAUTION 5)
- Boot Failure Guard (B.F.G.)
- 2 x PCI slots
- 1 x PCI Express x 16 slot
- 1 x PCI Express x 1 slot
- 1 x AMR slot
- Integrated NV44 graphics DX9.0 VGA
- Pixel Shader 3.0
- Max. shared memory 128MB
- Realtek ALC850 7.1 channel AC’97 audio codec
- Realtek PHY RTL8201CL
- Speed: 10/100 Ethernet
- Supports Wake-On-LAN
ASRock 8CH I/O
- 1 x PS/2 Mouse Port
- 1 x PS/2 Keyboard Port
- 1 x VGA Port
- 1 x Parallel Port (ECP/EPP Support)
- 4 x Ready-to-Use USB 2.0 Ports
- 1 x RJ-45 Port
- Audio Jack: Side Speaker/Rear Speaker/Central Bass/Line
  in/Front Speaker/Microphone (see CAUTION 6)
ASRock  939NF4G-SATA2  Motherboard
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55555
 Connector
 BIOS Feature
 Support CD
 Hardware
 Monitor
 OS
 Certifications
- 2 x Serial ATAII 3.0Gb/s connectors,
  support RAID 0, 1, JBOD
  (Not Support “Hot Plug” function) (see CAUTION 7)
- 2 x ATA133 IDE connectors (support 4 x IDE devices)
- 1 x Floppy connector
- CPU/Chassis FAN connector
- 20 pin ATX power connector
- 4 pin 12V power connector
- CD in header
- Front panel audio connector
- 2 x USB 2.0 headers (support 4 USB 2.0 ports)
  (see CAUTION 8)
- 4Mb AMI BIOS
- AMI Legal BIOS
- Supports “Plug and Play”
- ACPI 1.1 Compliance Wake Up Events
- SMBIOS 2.3.1 Support
- Drivers, Utilities, AntiVirus Software
- CPU Temperature Sensing
- Motherboard Temperature Sensing
- CPU Overheat Shutdown to Protect CPU Life
- CPU Fan Tachometer
- Chassis Fan Tachometer
- Voltage Monitoring: +12V, +5V, +3.3V, Vcore
- Microsoft® Windows® 2000 / XP / XP 64-bit compliant
- FCC, CE, WHQL
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66666
ASRock  939NF4G-SATA2  Motherboard
CAUTION!
1. For power-saving’s sake, it is strongly recommended to enable AMD’s Cool ‘n’
QuietTM technology under Windows system. See APPENDIX on page 41 of
“User Manual” in the Support CD to enable AMD’s Cool ‘n’ QuietTM technology.
Since not all K8 939-pin CPU can support AMD’s Cool ‘n’ QuietTM technology,
please check AMD’s website for details.
2. This motherboard supports Untied Overclocking Technology. Please read “Un-
tied Overclocking Technology” on page 19 for details.
3. This motherboard supports Dual Channel Memory Technology. Before you
implement Dual Channel Memory Technology, make sure to read the
installation guide of memory modules on page 9 for proper installation.
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.
5. While CPU overheat is detected, the system will automatically shutdown.
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 and the heatsink when you install the PC system.
6. For microphone input, this motherboard supports both stereo and mono modes.
For audio output, this motherboard supports 2-channel, 4-channel, 6-channel,
and 8-channel modes. Please check the table on page 3 for proper connection.
7. Before installing SATAII hard disk to SATAII connector, please read the “SATAII
Hard Disk Setup Guide” on page 16 to adjust your SATAII hard disk drive to
SATAII mode. Besides, you are allowed to downgrade the SATAII hard disk to
SATA hard disk (from SATAII 3Gb/s down to SATA 1.5Gb/s), and connect it to
the SATAII connector. You can also connect SATA hard disk to SATAII connec-
tor directly.
8. Power Management for USB 2.0 works fine under Microsoft® Windows® XP
SP1 / 2000 SP4.
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ASRock  939NF4G-SATA2  Motherboard
77777
2.2.2.2.2.
Installation
Installation
Installation
Installation
Installation
Pre-installation  Precautions
Pre-installation  Precautions
Pre-installation  Precautions
Pre-installation  Precautions
Pre-installation  Precautions
Take note of the following precautions before you install mother-
board components or change any motherboard settings.
1.
2.
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.
To avoid damaging the motherboard components due to static
electricity, NEVER place your motherboard directly on the car-
pet or the like. Also remember to use a grounded wrist strap or
touch a safety grounded object before you handle components.
Hold components by the edges and do not touch the ICs.
3.
4. Whenever you uninstall any component, place it on a
grounded antstatic pad or in the bag that comes with the
component.
5. When placing 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.
CPU  Installation
CPU  Installation
2.12.12.12.12.1 CPU  Installation
CPU  Installation
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 the CPU corner with
the golden triangle matches the socket corner with a small triangle.
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.
Install CPU fan and heatsink. For proper installation, please kindly refer to
the instruction manuals of your CPU fan and heatsink vendors.
Step 5.
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88888
ASRock  939NF4G-SATA2  Motherboard