Computer won't power up! Need some help please!

[zohair]

Ok here is the situation. I was using my computer just fine the other day, and then I shut it down. When I try to start it back up it wont boot at all.

I thought maybe it overheated or something, so I open the case and let it cool down and tried again. What happens now is that it starts to power up and then probably like 3-5 seconds after it starts powering it up, it shuts down, and then keeps recycling like that. The fan on the cpu never quite starts up.

I replaced the powersupply and that wasn't the problem. I also tried a different CPU fan.

I'm presuming its the CPU/motherboard but I have no idea how to test that. Its quite frustrating since the MB is less then a month old and the cpu is 9 months old.

Any suggestions?

Thanks!

 

[zoobaby]

Check your memory. Run memtest. I had the same issue a while back.

 

[digital_exhaust]

Not to sound like an asshole.. but running memtest for 3-5 seconds isn't really going to help....

Do you have a spare video card you could try? If your sure it's not power, my guess would be your board.. you could try tearing it down, out of your case and start with the basics... see if it will post with just your mobo, cpu/hsf, one stick of ram, video card and psu... and go from there...

 

[Shlomo]

Try resetting your bios, always worth a shot.

 

[zoobaby]

Not to sound like an asshole.. but running memtest for 3-5 seconds isn't really going to help....

DOH!

I need to go back to reading comprehension 101. Good catch.

Pull everything out of the system except the CPU, vid card, HDD, and 1 stick of ram. See if it boots. If not, put in other ram stick and pull out the other. See if it boots. Basically try booting with minimal hardware, and swap other hardware (if you have sp[are stuff laying around) until you can get a bootable configuration. Also, re-seat everything.

If you can't boot with bare minimums, try swapping the PSU.

As someone suggested, reset the bios. Maybe pull the battery for a minute or two as well.