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Help, possible dead CPU?

Hi!

So went to turn on my PC last night and it lit up and the fans started spinning. But nothing else happened. Won't even boot to BIOS.

The hard drive sounds like it tries to spin at the start but then gives up after a couple of seconds.

I've tried starting it removing different components, the video card, the ram, the HDD etc. I've moved the ram around - no good. I used the jumper to reset the CMOS and tried the same with reseating the CMOS battery. Still no good.

And then last night. When I finished testing all this, I had it powered on in the background while I was researching what to do and it suddenly booted up!?

Then I tried turning it back on this morning and I'm back to square one.

From my research online it appears to either be, the CPU, the motherboard or the PSU. If anyone can tick one or two of these options off, I would be very thankful as I could then just replace whatever part is needed.

Thank you,
Luke
5 answers Last reply Best Answer
More about dead cpu
  1. Or your video card..... Do you have another rig you could test the components? That would be nice. Or you can plug in a case speaker and listen to whatever error code it gives you, and refer to the manual for the error.
  2. In order of what's most likely to die: PSU > Motherboard >>>>>>>>> CPU

    Chances are very good it's not your CPU.
  3. Ryan_78 said:
    Or your video card..... Do you have another rig you could test the components? That would be nice. Or you can plug in a case speaker and listen to whatever error code it gives you, and refer to the manual for the error.


    I don't have another rig or a case speaker but I do have another graphics card, I guess I can try that and report back
  4. So I pulled the graphics card out of the pci slot and tried the onboard integrated graphics with a monitor using an i\o cable but still the same.

    I did just remember, however, that I updated to the latest catalyst drivers yesterday and put off the restart. When I turned it on last night, that was the first restart since then! This is very likely to be the source of the problem. There must be someway of resetting the graphics card or doing a system restore without a display?
  5. Best answer
    Whelanl3 said:
    So I pulled the graphics card out of the pci slot and tried the onboard integrated graphics with a monitor using an i\o cable but still the same.

    I did just remember, however, that I updated to the latest catalyst drivers yesterday and put off the restart. When I turned it on last night, that was the first restart since then! This is very likely to be the source of the problem. There must be someway of resetting the graphics card or doing a system restore without a display?


    If you removed the video card and got no display, the drivers for the add-on card should not be an issue at all. Doubly so if you can't even see the BIOS screen.

    Test with a different power supply, different RAM, motherboard.
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