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General discussion

New Computer Wont Boot, Display, or Beep!

by calco88 Oct 2, 2006 2:44PM PDT

I have a computer that I just finished building (ASUS P5P800-VM, Pentium D 820) and I've run into some trouble. When I turn it on, meaning when I hit the power button, the HDD spins, and the CPU fan turns on, but I dont get any beeps or display. Nothing. Now I have come up with a few possibilites:

1. The CPU fan is a 3 pin connector and the Asus motherboard has a 4 pin, and I read that if the mobo doesnt detect the cpu fan it wont boot? However the cpu fan is indeed on.

2. Bad BIOS? Perhaps the bios was erased somehow?

3. Bad CPU? I can feel some heat from the CPU so at least something is happening there.

Now, I concidered bad MOBO, and PSU, but i switched to PSU, and its still the same, and also if i take out the ram and turn on the comp, i get a neverending loud beep, so it sees the ram. So guys? What do you think?

Discussion is locked

5 Posts
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What os did you install?
by curlykale Oct 3, 2006 1:58AM PDT

What os did you install?

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Reply to: What os did you install?
by calco88 Oct 3, 2006 6:25AM PDT

I highly doubt this has anything to do with software, but the HD has Server 2003 on it. I dont think its software because it wont even post, or do a mem check or display anything. some uneducated people have told me to ''use a boot disk'' or ''do a clean install'' but how can you boot off of a disk that is on a computer that wont boot!?

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Try HERE
by acoxon1274 Oct 3, 2006 10:03AM PDT
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The so subtle, yet so obvious reason
by calco88 Oct 3, 2006 10:34AM PDT

No, its not the bios, no its not the hdd, no its not any of that. Pin 18 (white) is missing from this 320watt power supply's 20 pin ATX connector, its simply not there. Now i know what your thinking, I already tried another PSU, it should have worked right? Wrong. The other psu i tried was only 180watts, the mobo requires 300, so now im returning this PSU, and getting a new one, in the meantime im searching my house for a 300+watt psu in my house to see if that was it, I mean, when a cable is missing from the computers main source of power, theres gonna be something not working. ill follow up with the results.

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after research
by calco88 Oct 3, 2006 11:35AM PDT

i found that hardly any computers these days use pin 18, and many are included without it, so i doubt that is it now. i ordered a new bios chip in case thats it, im concidering buying a cheap celeron d LGA775 to test the motherboard.

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