Computer won't boot

[pepe123]

i havd a computer when i turn it on the hd activy light turns on and dosent turn of even when the hd isnt pluged in when i plug the cpu in it turns on for a like 2 secs and then turns off

[PartyLikeARockstar]

can you a bit more specific:

what did you last do with it
any beeps coming from anywhere

[pepe123]

i had another mobo with the same socket i took the cpu out of this one to see if the other mobo worked it didnt display anything so i put it back in this mobo i tried turning it on but the hd light turns on the comp turns off but when i take cpu out the hd light turns on and the comp stays on

[Dane Bramage]

lots of unknowns there, dude.

do you have a cpu fan on the mobo? it won't boot w/o the cpu fan plugged in.

be sure that your HDD wires are plugged into the mobo correctly. a crossed wire or misplaced plug could cause the light to come on with no HDD even installed.

but really, it's tough to know anything with your description of the situation. we need specifics if we are gonna help.

[DShark542]

No offence, but it sounds like you dont have a CPU fan>?

Or if in doubt, rip everything out, and start again...

[J-Roc]

A computer will start without a cpu fan. See: Watercooling...

Allthough, if you started it with nothing on the processor, then you fried the cpu.

Put the system back the way it was and see if it'll start. If nothing happens then you probly fried the cpu with your other mobo. Which i suspect is bunk.

[nevermind1534]

I know for sure that socket 370 CPUs won't start without anything, such as a heatsink clipped on tight. I have experience with this. In your case, it seems like this is the problem. I got the exact same thing.

[pepe123]

i had a cpu fan but when i was changing it around from motherboards i didnt put it on

[nevermind1534]

Do you have a heatsink attached with the clip?

[Eclecticos]

Sounds like you've shorted it out. Or plugged something up wrong.
I would check the connectors for damage.

[Eclecticos]

You might also want to check the 2-pin leads from your front panel.
The correct way is letter side up i.e. HDD, PW, RESET.
Sometimes its sideways in that case the letters face the cpu.

http://img183.imageshack.us/img183/3379/2pinleadnn6.jpg
You may have one turned around bass-akward or something.

[Snowman]

Possibly your RAM is not seated properly.

[crenn]

Wait, you didn't put on the HSF (HeatSink and Fan) on the CPU when changing between motherboards?!

If this is the case, you may have fried your CPU. If you haven't fried it, then you need to put on the HSF before it will work.... it needs cooling to work.

[pepe123]

ya i think thats wat happend ok thanx ill just sell the mobo i have two with socket a now to find out where to sell um

[nevermind1534]

If it's a socket A, then it very well could be fried.