Member Avatar for Winters

Alright well i recently bought all the parts i needed to build my own comp.

Mobo=Asus P4s800
CPU= Intel 2.8 Ghz
80gig HD

Well anyways i installed windows this morning and everything was working fine. I shut it down then came back about an hour later but the computer would start but nothing would be displayed on the screen

Plz Help Me :) :)

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  • Latest Post Latest Post by alc6379

Dani AI

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Quick practical path to narrow this down for : start by treating it as a power/POST problem rather than a Windows issue. The fact that USB/keyboard/mouse aren’t getting power and there’s no video usually points at the power supply, motherboard power connections, a short, or a failed board/component. Build on ’s video-card check and ’s “strip it down” idea, but follow a tighter bench-test checklist.

Step-by-step bench test:

  • Unplug and move the board out of the case onto non-conductive surface (cardboard). Remove all drives, PCI/AGP cards, front-panel USB/audio leads and extra devices.
  • Fit only CPU, its cooler, one known-good RAM stick in the recommended slot, and the video card only if there’s no onboard video. Connect the main ATX connector and the separate CPU 4/8-pin power lead.
  • Attach a case speaker to the motherboard speaker header so you can hear POST beeps. Try powering on. One stick/one slot isolates RAM issues; beeps point to the failing subsystem (no beeps -> power/mobo/CPU).
  • If fans don’t spin or USB stays dead, swap in a known-good PSU if available. If fans spin but no beeps or video, reseat the CPU and RAM; check for bent/broken socket pins or improper cooler mounting.

Other quick checks and cautions:

  • Clear CMOS (jumper or remove battery briefly) to reset BIOS settings.
  • Look for misplaced standoffs or mounting screws that could short the PCB.
  • If there’s a burning smell or visible damage, stop and arrange an RMA — don’t keep powering it.
    If these steps still give no POST and peripherals remain unpowered, it’s very likely a motherboard or PSU fault; document what you tried (photos and steps) before returning for replacement.

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Member Avatar for ediehm

The only thing I could suggestive would be to check your video card. If ya got a spare one layin' around, swap it out with the one thats in there now.

Member Avatar for Winters

Shoot i also forgot to mention that nothing else works... What i mean is that the mouse doesnt light up, and same with the keyboard, Anything that has to be plugged into a port at the back/front of the computer doesnt work. But it worked before, this only happenf when i started the computer up for the third time. Could it just be a faulty motherbaord.. If no one has any suggestions then i think im just gonna go and return it for a new one.

Thx in advance

Member Avatar for alc6379

You didn't smell anything, did you? If you just built it, you might not have installed your heatsink correctly.

I hope you don't mind me cutting and pasting my advice from another thread, but it applies here, too:

Strip the system down to motherboard and processor. Disconnect all external peripherals, and disconnect the power and IDE cables from the motherboard. Remove the PCI and AGP cards as well. This way, you can trace back step-by-step what part could be causing the failure.

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