PC unknown problem/not turning on

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27 Aug 2010
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I switched cases today, but when I tried to turn on the PC it just didn't turn on, there's a flicker of blue light from my led fan but then nothing. What could this be?

I've checked the motherboard pin connectors and they're put in properly.
 
Double check all electrical connections are in correctly, did you use the standoffs in the case, as you might have a short.
 
Another thing, it's like it's turning on in the fact that to get the led's to flicker again I have to hold down the power button as if I'm turning it off then click the power button again.
 
Your motherboard may be Ok!

Couple of other options that may be worth a try, go back to basics with only one memory module, gpu and cpu, also try a CMOS reset.

If these fail test the motherboard on the bench to rule out a possible short.
 
I just took the battery thing out for 10 minutes then put it back in, the same thing happens so nothing has changed
 
Do as "RJC" suggested. Disconnect all hard drives, cd roms, pci cards etc. Have only the CPU, RAM and Graphics (onboard if possible). Use only one Ram module in DIMM 1 closest to CPU, try all modules if at first it fails.

Then as also suggested, take it out the case and try firing it up outwith the case to eliminate any shorts.

If it was shorting it should be alright, never really seen any long term damage from shorts. Fingers crossed anyway.
 
Do as "RJC" suggested. Disconnect all hard drives, cd roms, pci cards etc. Have only the CPU, RAM and Graphics (onboard if possible). Use only one Ram module in DIMM 1 closest to CPU, try all modules if at first it fails.

Then as also suggested, take it out the case and try firing it up outwith the case to eliminate any shorts.

If it was shorting it should be alright, never really seen any long term damage from shorts. Fingers crossed anyway.

Just did what you suggested, the CPU fan was spinning fully but it didn't sound like the PC was fully on. I will plug the monitor in to see if anything comes up.
 
Ok, it seems to be working by following what you said, it says there's some sort of CMOS error.

I'm not entirely sure what was wrong then though.
 
Yes it is a CMOS Checksum error, I've not yet connected anything else back up.

I have psychic powers you know :cool:

I joke of course. Well start to connect one thing back up at a time, attempting to boot after each time you re-connect a component/peripheral.

Make the HDD the last thing, so it's not booting into windows all the time.

If you manage to connect everything back up and it still boots, then do a Cmos reset, then report back and let us know how you got on.

If after you connect one device, then it fails to boot, disconnect it, try to boot again, if successful... then you have you're culprit.

Any questions, just ask. I realise that was a bit jumbled.
 
Thanks for the help everbody, thanks Buchanan0204, I've plugged everything in and it loads, I will do a cmos reset shortly :)
 
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