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ASUS A8N5X ATX S939 NFORCE4 DDR PCI-E16 SATA RAID Sound GBLAN Motherboard - 16654_all.jpg ASUS A8N5X ATX S939 NFORCE4 DDR PCI-E16 SATA RAID Sound GBLAN Motherboard - 16654_io.jpg Customer Photos (0)

Reg. Price: $99.96  CAD
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   Shipping Weight:   5 lbs
   Part #: A8N5X-UAYVZ

Features    [ Edit | History ]

Performance 939 Board for Everybody

- AMD Socket 939 Athlon 64 X2/Athon 64 FX/Athlon 64
- NVIDIA® nForce™ 4
- PCI Express Architecture
- Serial ATA RAID
- Gigabit Ethernet
- Precision Tweaker

The ASUS A8N5X offers the best value for a AMD based performance motherboard. The onboard NVIDIA nForce 4 Chipset supports up to 2000MT/s system, which allows you to take full advantage of powerful 939 CPU. In addition, use ASUS unique AI NOS, Precision Tweaker, and PEG Link to further enhance your thrill for performance!

Supports AMD Socket 939 Athlon 64 X2 / Athlon 64FX/Athlon 64
A8N5X supports AMD 939-pin Athlon 64 X2 / Athlon 64 FX/ Athlon 64 processors which is based on 64-bit architecture. It features 2000/1600 MT/s HyperTransport Bus and dual-channel un-buffered DDR400 memory support.

NVIDIA nForce4
NVIDIA nForce™4 deliver unmatched PC security and unbelievable PC performance. Get it all: PCI Express for AMD platforms and cutting-edge features including SATA and NVIDIA nForce Security – protection from spyware and hackers. NVIDIA nForce4 ensure maximum PC performance while futureproofing your PC for demands of tomorrow.

PCI Express Architecture
PCI Express is the latest I/O interconnect technology that will replace the existing PCI. With a bus bandwidth 4 times higher than that of AGP 8X interface, PCI Express x16 bus performs much better in applications such as 3D gaming. The PCI Express x1 interface creates new usages on desktop PCs e.g., TV tuner, 1394b, and high-speed RAID systems.

Precision Tweaker
Precision Tweaker is designed for serious overclockers. It offers ways to raise system performance inch-by-inch and step-by-step to achieve maximum performance! This is about getting the most out of your machine, and taking pride in your customized computer. Precision Tweaker provides overclocking options for all major parts of the system: CPU, Memory, PCI-Express, and Front Side Bus.

Take control of how much power is going into the memory modules. ASUS gives you 9-step voltage control to the DIMM

Find out "exactly" how much power your CPU needs. Fine-tune it with 0.0125 volts at a time!

PCI-Express Frequency
Explore the frequency options of your PCI-Express graphics card

SFS (Stepless Frequency Selection) allow FSB tuning from 200MHz up to 400MHz at 1MHz increments.

Boost performance when you need it the most!
Applications such as 3D games and video editing demand a huge chunk of system resource.
Inject "nitrous oxide" into your CPU! The patented AI NOS™ (Non-delay Overclocking System) technology intelligently detects system load and automatically boosts performance for the most demanding tasks. Unlike other dynamic overclocking techniques, AI NOS™ reacts much faster to satisfy your unending need for speeds.

PEG Link
PEG (PCI-Express Graphics) Link lets you to raise GPU and VGA memory throughput via the motherboard BIOS the same way system bus and memory bus are tweaked. ASUS engineers carefully fine-tuned the parameters for PCI-Express cards to provide system stability during high-speed graphics operation. Furthermore, with two PCI-Express slots, the A8N-SLI is able to activate PEG Link on both graphics

ASUS AI NET2 remotely detects cable connection the second you turn on the system, and any faulty connections are reported back up to 100 meters at 1 meter accuracy.

NV Firewall
NV Firewall provides professional-grade traffic inspection capabilities, instanton protection, advanced management features and is easy to use and setup via a user friendly wizard.

AI Audio (8-channel Audio)
A8N5X has eight channels of audio output with Coaxial and optical S/PDIF connector designed to maximize your auditory experience. AI Audio also provides "Jack Sensing" and "UAJ" functions. "Jack Sensing" automatically detects and notifies user of any inappropriate connection. "UAJ" function enables both input and output functions each jacks, thus eliminates the confusion of Line-in, Line-out and Mic jacks once and for all!

ASUS Q-Fan technology intelligently adjusts both CPU fan speeds according to system loading to ensure quiet, cool and efficient operation.

Universal PCI-E Slot
The ASUS Universal PCI-E Slot gives the users freedom and flexibility on the utilization of the PCI-E interface. With Universal PCI-E Slot, user is able to plug in an additional PCI-E graphics card to have dual VGA on a single motherboard! This special design supports up to 1GB/s in bandwidth, and it will also take in most of the PCI-E devices out there!

Max. 10 USB 2.0 ports supports
USB 2.0 is the latest connectivity standard for next generation components and peripherals.
Backwards compatible with current USB 1.1 peripherals, USB 2.0 delivers transfer speeds up to 40 times faster at 480Mb/s, for easy connectivity and ultra-fast data transfers.

Multi-language BIOS
The multi-language BIOS allows you to select the language of your choice from the available options. The localized BIOS setup menu helps you configure your system easier and faster.

ASUS CrashFree BIOS2
The CrashFree BIOS2 feature now includes the BIOS auto-recovery function in a support CD.
Users can reboot their system through the support CD when a bootable disk is not available,
and go through the simple BIOS auto-recovery process.
ASUS motherboards now enable users to enjoy this protection feature without the need to pay for an optional ROM.

S/PDIF-out on Back I/O Port
This motherboard provides convenient connectivity to external home theater audio systems via an optical or coaxial S/PDIF-out (SONY-PHILIPS Digital Interface) jack. It allows to transfer digital audio without converting to analog format and keeps the best signal quality.

ASUS A8N5X-UAYVZ Customer Reviews

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding ASUS A8N5X-UAYVZ reviews.
Experience: 1 Months
 Verified Owner
Good price
Good feature set
No firewire
The first thing I noticed about this board is how well put together it is. My case temp dropped 5 degrees when I installed it. There's a lot more space in my case, and it just looks better. There are enough overclocking options for most people. The lack of firewire may be a problem for some people, but pci cards are cheap enough these days.

Experience: 3 Months
 Verified Owner
Great board excellent placement of all ports, devices.
Colour could be more attractive given its running in a clear sided case atm.
An excellent board given its price, solves all needs for the basic user and even a gamer. did not seem to take overclocking well in my briefr experience with it. But then again i only spent 10 minutes with an athlon 3800+

Experience: 2 Months
 Verified Owner
It's ASUS, it's dual channel, and it's cheap, and it's NForce4 chipset
Could have had SATAII to complete the package.
I love this board. It's from a great manufacturer, and it's got all the good options for a board, minus the SATA2, and it runs very solid. I was quite happy when I saw this version of a motherboard, with NForce4 chipset, at such a great price. I was gonna have to spend like $20 more atleast for another comparable motherboard, so this was nice to find. I'd recommend it for someone wanting a good board for their moderate gaming system.

Experience: 90 Days
 Verified Owner
Tons of features, ASUS reliability, 4 SATA ports, X2 support, etc.
When windows doesn't finish booting, and the computer gets restarted, there is no USB support until it reaches windows. Have to plug in a PS/2 keyboard to select which OS I want to boot into. NOT a big problem at all though.
Works flawless with my X2 3800+. Other than the USB thing, this motherboard is flawless. Endless amounts of features. Buy it now :)

Shou Gang_C
Experience: 2 Weeks
cheap, affordable, stable
cheap means not very powerful nor overclockable
This motherboard is highly recommended to people building budget pcs. Its performance and stability are very good. Although there are several MATX boards cheaper than this one with onboard video, this motherboard is still worth it due to full ATX and several memory, pci slots more.

Experience: 2 Months
 Verified Owner
Verry nice MOBO.
I don't regret it. I put it in my nex order to build another computer.
I use it to built a system with socket939 Athlon64 3200+, X600SE PCIe video card and one Samsong PC3200 500Mb DDR400 184pin memory. The system running in RAID1 with 2 HDD 80gb Samsong Sata2, it take a few time to make the setting but at the end the result is verry good. It run at low temperature (CPU), work like a charme. Very easy to install XP pro on it. So if your looking for good economic futurproof system than can do great, go with this ASUS A8N5X MOBO.

Experience: 7 Weeks
 Verified Owner
Good quality to price ratio, nforce 4 chipset. S939
Not SLI compatible.
I purchased this motherboard about 2 months ago. It is a great board for a gamer who is not looking to run SLI video. Great quality to price ratio. I would buy this board again. I give it 4 stars because it is not SLI compatible.

This review was modfied by poster @ 06-02-06 11:48 AM

Experience: 2 Days
 Verified Owner
Très bon rapport qualité/prix.
Vient avec beaucoups d'accessoires pour le prix.
5 connecteurs 3 pin pour ventilateur sur cette carte!
Plusieurs options pour l'overclocking dans le BIOS.
Connecteurs très bien localisés sur la carte.
Pas de port firewire.
J'ai acheté cette carte pour monter un système familliale tout usage. Ce motherboard est parfait pour ce genre de système et il est très économique et relativement complet pour une carte avec chipset NForce 4. Pour le moment il semble très stable et je n'ai aucun points négatifs important à signalé.

Experience: 2 Days
 Verified Owner
cheap pci express motherboard
i strongly recomend this mother board for anyone looking for a cheap solution to there pci express problems i use this for a client and they are very happy with it

 NCIX Forum Messages

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Messages about ASUS A8N5X ATX S939 NFORCE4 DDR PCI-E16 SATA RAID Sound GBLAN Motherboard

Zalman ZN-NBF47 Fit on this mobo? (Kyle_K- Mar 19, 07, 0 Replies) Read this message
Fans (Kyle_K- Mar 15, 07, 0 Replies) Read this message
ATI Videocard? (Kyle_K- Mar 10, 07, 2 Replies) Read this message
Can't get any display (Brian_C- Jan 28, 07, 1 Replies) Read this message
IRQ (Lenard_S- Jan 05, 07, 5 Replies) Read this message
ocz memory (Lenard_S- Jan 04, 07, 2 Replies) Read this message
onboard audio (Lenard_S- Jan 03, 07, 0 Replies) Read this message
dual core (Lenard_S- Dec 30, 06, 1 Replies) Read this message
Overclocking On This Board With SATA Drives (tehgooch- Dec 07, 06, 3 Replies) Read this message
Video card???? (sniper_juan- Nov 15, 06, 4 Replies) Read this message
Overclocking On This Board (tehgooch- Nov 10, 06, 16 Replies) Read this message
Any good at all? (MR.behavingnowsoidon'tgetbannedagain- Sep 14, 06, 2 Replies) Read this message
What is the heatsink clearance..? (nVidialan- Aug 10, 06, 0 Replies) Read this message
Chipset? (Abercrombie2k- Feb 26, 06, 5 Replies) Read this message
A8N5X and 3800 X2 HyperTransport Issues (Derezo- Feb 11, 06, 2 Replies) Read this message

Post a New Message  |    All Messages       Browse NCIX Forums

Forum messages are not reviewed and may not contain accurate information about a product. Message contents are opinions from customers based on their own experience with a product. We do not recommend you make puchasing decisions based on Forum messages.
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Product Warranty
First 30 days limited warranty through The remainder of the 3 year warranty is provided directly by the manufacturer.

Video Cards:
All ASUS VGA cards purchased after January 1st, 2001 will carry 3 year warranty services from purchase date. ASUS product warranty is based on the serial number printed. First 30 days limited warranty is through The remainder of the 3 year warranty is provided directly by ASUS. For more details, please visit

Sound Cards:
All ASUS audio cards carry 3 year warranty services from purchase date. ASUS product warranty is based on the serial number printed. First 30 days limited warranty is through The remainder of the 3 year warranty is provided directly by ASUS. For more details, please visit

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ASUS LCD monitors carry a 7 day DOA warranty from NCIX, and 3 years limited manufacturer warranty from purchase date. For details on DOA (dead on arrival), bright/dark dot warranty, please visit

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ASUS Notebook Service Center in Toronto, Canada.

For ASUS branded notebooks (not including Eee products and Built-on ASUS):

Complete Customer Care Package

One of the industry’s most complete customer care packages offers a level of coverage that adds to the price of competing products:

  • 1 Year Global Warranty (estimated $100 value, FREE)
  • 30-Day Flawless Display Guarantee: If you discover one defective bright dot within 30 days of purchase, ASUS will replace the panel at no cost.
  • Two way free shipping
  • 24/7 tech support: 1-888-678-3688

Accidents Happen

You have extra protection when they happen to your ASUS notebook purchased in the US or Canada. ASUS will fix it or replace it for you at no charge during the first year after purchase in the event of damage from accidental spills, drops, electrical surges, or fire.

  • Warranty covering accidental drops, spills, power surges, and fire damage
  • Target 3 business day turnaround time for repair / replacement; not including receiving and shipping time
  • One-way shipping (from ASUS to the user) at no additional cost
  • 24/7 toll-free phone support
  • One incident covered per notebook


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