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Computer Will Not Start


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#1 laffingboy11

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Posted 25 January 2010 - 03:03 PM

Hi Everyone,

I took a class from my local school district on how to build a computer a few years ago and built what has been a great computer. That is until yesterday.

Here are the specs for the computer:

CPU - Intel Core 2 Duo, I think it is an E6600
Motherboard - Asus P5K-E/WiFi AP
RAM - 4x1GB OCZ Reaper DDR2 PC6400
Graphics - BFG GeForce 9800GT
Power Supply - OCZ GameExtreme 700w
Boot Drive - WD Raptor 74GB
Data Drive - SGT 750GB Sata2
Optical Drive # 1 - Lite On OEM DVD
Optical Drive # 2 - Philips DVD

The computer runs on WinXP Pro

I rebooted the computer and after shutting down the computer would not start. It attempts to start but cannot even POST. The power LED comes on and the hard drive LED flickers and the computer makes a whirring sound like all of the drives are spinning up and then it just stops. After about 5 seconds it will do the same thing, LEDs flicker, drives spin up and then stop. It does this about every five seconds and the only way for me to stop the process is to reach behind the machine and turn off the power supply using the rocker switch on the outside of the power supply.

There was no warning of any problem before I rebooted. There were no clicks or pops or smell of burning electrical components. I opened the case and checked all of the connections from the power supply to the motherboard, video card and drives. There were no loose connections. I inspected the motherboard as best I could (the view of some components was obstructed by the CPU fan mount) looking for any blown or leaking capacitors or any obvious signs of damage and did not see anything.

I am kind of inexperienced with these types of things but I am wondering if I have some sort of power issue or BIOS issue. Maybe the power supply has malfunctioned and does not output enough power for the motherboard, or the power regulation components on the motherboard have malfunctioned. Could something like this be caused by the little button battery on the motherboard?

If anyone has any suggestions please reply.

Thanks,

Laffingboy

Edited by laffingboy11, 25 January 2010 - 03:10 PM.


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#2 MrBruce1959

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Posted 25 January 2010 - 05:03 PM

Can you access the BIOS setup utility at all?
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#3 laffingboy11

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Posted 25 January 2010 - 08:37 PM

Thanks for the reply MrBruce1959. No, the computer does not even start to load the BIOS before it goes into its power cycle routine.

I talked the network tech at work to see if he had any ideas. He said that he has seen this same thing happen from time to time and that in most cases it is caused by a faulty power supply. I purchased a new power supply, installed it and the problem is solved. After installing the new power supply the computer booted normally right off the bat. I am surprised that what seemed like a pretty good quality power supply failed. Anyway this problem is solved and the case is closed.

Thanks,

Laffingboy

#4 MrBruce1959

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Posted 26 January 2010 - 11:33 PM

You're welcome!!

:thumbsup: That's what we want to hear :flowers:

Edited by MrBruce1959, 26 January 2010 - 11:35 PM.

Welcome to Bleeping Computer! :welcome:
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My Career Involves 37 Years as an Electronics Repair Technician, to Which I am Currently Retired From.

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