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will the PSU power up if the CPU is dead????

N

nortexoid

Diamond Member
just built a computer, had it up and running installing winxp, then crashes with a blue screen...

restart it, doesn't start back up...turn it off, then on, same thing...clear CMOS, restart, it shows the video card bios, then stops...anything after that and the PSU won't even spin up.

this is what i've tried:

1) removed the mobo from the case and had it sitting on cardboard (no metal touching it)...only the CPU and memory installed - nothing.
2) tried the PSU on another mainboard, as well as the power switch from the same case on a different mobo, and it successfully booted the other mobo...this rules out the PSU and the case's power switch
3) swapped out the memory for mem that i know works (i'm posting from this from the machine w/ the working mem.)...nothing....this rules out memory
4) the video card and nothing else is even installed, so everything but the CPU and mobo are ruled out.

so what I'm wondering is, say I was to take the cpu out, and keep just the memory in, if the mobo was working, would it power up the PSU and give me some error beeps?
 
Which PSU are you using? I had a new Enermax EG465AX-VE that wouldn't come on with just the memory, cpu and vid card. I ended up swapping everything out with no success. When I connected the hard drive, CD Rom and floppy, it booted right up. It turned out that it had a minimum load requirement which I had never heard of before.
 


<< will the PSU power up if the CPU is dead???? >>



Yes it will power up anyways,and if you get no beep codes that's a sign that the cpu might be dead also.

If anything but the cpu is dead you would get beep codes for mem,video, etc. but with no cpu you get no beep codes.
 
it's not an enermax, it's some generic 300watt P4 power supply that also has this P6 power connector (like half of the connector from the older boards or something)...

hmmm...thanks for the replies...i guess that leaves the mobo, since the PSU is good yet it doesn't power up from the board.

forgot to mention that i tried this PSU on another K7S5A and it worked fine...oh, haha - i also forgot to mention this is on a K7S5A, which is most likely dead or something...
 
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