Question about ASUS A8N-E Motherboard

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ASUS A8N-E motherboard dosen't boot up

My computer with a AMD Athlon 64 cpu and a motherboard of Asus A8N-E motherboard don't want to booth up. I have check the PSU and found out that it was ok. I can see the LED inside the motherboard is on everytime I turn on the power supply but still it does not booth up. I remove all the connection of the hard disk and CD rom just to test it but still no repsonce. I don't have any clue on what happen pls. help?

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  • edselcabrera Jan 04, 2009

    No fan is spinning and it's like the power will run on a millisecond and then stop. But the LED is still lit. I try the psu to another computer and its works fine. I already test it bare bone with one memory inserted still no response. Could it be the battery of the bios died out? I have this board almost going to 3 years.

  • ehostin Feb 22, 2009

    I have had a similar issue with the A8n-e motherboard. I have had chipset fan problem in past and replaced the fan.



    have had a couple of instances where the computer would not turn on. But, after a "rest period" would come on when power switch pressed.



    Now, the machine will not come on AT ALL. There are no lights, no fans turning, nothing. I checked that the PSU was functional by disconnecting motherboard power cable and jumping the green cable to a black, common wire. (saw this on another forum). The PSU fan comes on and using digital multi-meter, all wires deliver juice (red give +5volts and yellow deliver +12volts).



    Any suggestions? Is MB clearly the issue or are there any other possibilities?

  • Chris Fell
    Chris Fell May 11, 2010

    Do you have a processor cooling fan spinning? does the hard drive spin? do the cd/dvd drives operate ? if yes to all then you most likely have a failed motherboard processor socket. Contact me for further support compdoctor2005@btinternet.com

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Hello. The manual says that all the power connectors must be in place, the main connector and two ATX 12V 4 pin plugs. It states that there will be no attempt to boot without all three power plugs inplace.

Posted on Oct 31, 2012

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Make a deep examination of the board, look for burned/broken microresistors. You might need a magnifying glass and good lighting. Any resistor showing a little blob or browning is burned. Microresistors are those minuscule black,gray,brown or white rectangles lying all over the motherboard's traces. Check first the ones near the power supply connector and near the chips, specially one that says winbond on it, this last ones may get burned from USB overloading, from using non-self powered hubs also called passive hubs.

You may check for blown capacitors, capacitors are those standing cylinders with a plastic cover around them with numbers and letters printed in those covers. On top they are left without a cover and they are aluminum color, they may be flat or have one or more grooves runing across the top. A blown capacitor, looks different from the others because it looks a little bloated on the top, or may have spilled some sort of transparent varnish from its bottom to the motherboard or its top to other components around.

After that, you might want to check that your memory is OK in another computer and seated right in your motherboard, check the graphic card if it isn't of the integrated type. Finally you may suspect of the CPU, athlons get very warm and they can get burned too. Never start your pc without a cpu.

Posted on Jan 03, 2009

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This points towards a blown board, in particular the processor socket is the culprit. Replace motherboard.
compdoctor2005@btinternet.com

Posted on Jan 04, 2009

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Have amd atlon 64 processor 400+ can i upgrade to x2 processor aus kn8 motherbord


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Open the link provided by Asus online; http://www.asus.com/product.aspx?P_ID=zigzffr75jWJ7j2y&content=specifications

Click the, "CPU Supported List". The fastest CPU listed is the,
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Motherboard dont see all installed ram after changing cpu's.


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Type of ram


ASUS A8N-SLI Premium Specifications
CPU: Socket 939 for AMD Athlon 64FX / Athlon 64 /Sempron / Athlon 64 X2
Chipset: NVIDIA nForce4 SLI
Front Side Bus: 2000/1600 MT/s
Memory: 4 x DIMM, max. 4GB, DDR 400/333/266, ECC, non-ECC, un-buffered memory, Dual Channel Architecture.
Expansion Slots:
2 x PCI-E x16
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1 * PCI-E x 1/ 1*PCI-E x 4(x2 mode)
3 x PCI
Storage/RAID: nForce4: 4 x SATA 3Gb/s
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Audio: Realtek ALC850, 8-ch High-Definition Audio CODEC
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or see this site:
http://www.ngohq.com/home.php?page=articles&go=read&arc_id=34


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Cup fan erro


Firt remove the covering of the cabinet then locate a battery take it out rub it for few seconds.Place it back the way it was.Now if you have another cpu fan port on the mother board then plug your cpufans cable to it.Now restart your computer start pressing F2 ie bios settings.Now check the time and date. restart it again. See if it fixes the problem.


Please rate me> Karatela ;-)

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