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Quiglag
God is Love
Premium
join:2004-09-19
Ontario, CA

PC powers on but won't post

Yesterday my pc was working just fine, but when I turn it on today it will not post. The mobo powers on and spins up the drives and fans but that is about it. I pulled all the ram and tried running with one stick to see if any of them were bad, but no luck. Even with all the ram pulled, there are no error beeps. I also cleared the cmos ram.

What else could it be? If it helps, the mobo is an ASUS M2N32-SLI Premium
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JeffMD

join:2002-08-16
Edgewater, FL
kudos:1
If the cpu + 1 stick did not work, the mother board is gone.


Quiglag
God is Love
Premium
join:2004-09-19
Ontario, CA
reply to Quiglag
Thanks. I was thinking that it must be the mobo.
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Veloslave
Geek For God
Premium
join:2003-07-11
Martinez, CA
reply to Quiglag
Uh, you still need to make sure it is not the PS.
--
Mom was right.... I NEED fiber!


Quiglag
God is Love
Premium
join:2004-09-19
Ontario, CA
reply to Quiglag
How can I check if it is the psu? I don't have another one swap out.

I know the mobo is getting at least some power because it lights up and spins up the drives and fans.

Thanks
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Veloslave
Geek For God
Premium
join:2003-07-11
Martinez, CA
Reviews:
·Comcast
·PHONE POWER
You can use a voltage/Multimeter to check all of the voltages... you are looking for

3.3 volts
5 volts
12 volts

You should not find much variance... PC's that are still spinning up and "appearing to run" are not unusual findings for a bad power supply. That is it is always nice to have a spare PS around for testing (if you do not have the very affordable testers out these days)
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Mom was right.... I NEED fiber!


Dogg
Premium
join:2003-06-11
Belleville, IL
Reviews:
·Charter
reply to Quiglag
Bare motherboard with cpu and power supply (everything else disconnected) you will get ERROR / BEEP codes for missing RAM. If you are not, one of those three items is faulty. In order, power supply, motherboard, cpu. The only way to know for sure at this point is to swap with a known good spare.

A multimeter can sometimes help, but not always as a faulty unit can provide proper voltages for testing, and then fail when it's under load.
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Veloslave
Geek For God
Premium
join:2003-07-11
Martinez, CA
Reviews:
·Comcast
·PHONE POWER
said by Dogg:

A multimeter can sometimes help, but not always as a faulty unit can provide proper voltages for testing, and then fail when it's under load.

Yeah that too...
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Mom was right.... I NEED fiber!


Quiglag
God is Love
Premium
join:2004-09-19
Ontario, CA
reply to Quiglag
Turns out it was the power supply. Thanks for all the help.
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