Not Starting Problem

Lago

I built my computer a few months ago and it's been working fine since. However, today I was getting ready to go training and my mother turned it on. It was working perfectly. I left, and my mother continued on the computer and she said it was working grand. When she was done, she shut it down and turned off the stand-by button at the back and left it. I returned home an hour later and went to turn on the computer. But when I switched the power button, the light just flashed on for a second and the fans started to spin but then stopped.

The only time I can remember seeing anything like this is when I was building it and I put the wrong screws into the motherboard, making it touch the case and shorting it. However, I literally have no idea what could have happened. When I came home there was a bit of static electricity around the back of the screen and in the surrounding sockets. The sun was shinning on the curtains just behind the computer. I've also noticed that the computer tends to randomly slow down for a while playing EU3 and crashing while playing TLD. I was kind of wondering about overheating, especially since I put a lot of thermal paste on the processor since I was new to building.

I took the fan off and tried to spread the thermal paste around more evenly as well as taking some off but other than that, I don't know what is the cause. Help please!

klub44

Any sounds from mobo speaker? Did you tried to push in all power cables and ram?
It looks like PSU or Mobo failure.
Try to un plug all componets/cables and assembly your pc again, check your PSU with power meter.

yoyo

Could be PSU failure, have another one you can try? also unplug everything and replace pieces one by one, but sounds like a PSU/mobo issue

Nick

Lago

klub44 wrote: »

Any sounds from mobo speaker? Did you tried to push in all power cables and ram?
It looks like PSU or Mobo failure.
Try to un plug all componets/cables and assembly your pc again, check your PSU with power meter.

yoyo wrote: »

Could be PSU failure, have another one you can try? also unplug everything and replace pieces one by one, but sounds like a PSU/mobo issue

Nick

Plugged everything in and went through them one by one. Couldn't really find anything new. What exactly could cause my PSU to fail?

yoyo

Lago wrote: »

Plugged everything in and went through them one by one. Couldn't really find anything new. What exactly could cause my PSU to fail?

I suppose many things could go wrong, I don't really know why or how PSUs fail but I know for a fact that they can . I suppose electricity spikes could kill them? Its worth checking out another PSU in the machine anyways, if you have access to another PC just pull out the PSU and try it, no need to even mount it, just place it on one of the case covers and connect it up, Thats what I do to diagnose PSU problems as I have a spare one

Nick

Fuzzy Clam

Lago wrote: »

When I came home there was a bit of static electricity around the back of the screen and in the surrounding sockets.

Whoa! How do you know that there's static electricity? :eek:

If you've felt some type of shock then you can be sure that the motherboard is fried. Possibly the HD too.

Fuzzy Clam

yoyo wrote: »

I don't really know why or how PSUs fail but I know for a fact that they can . I suppose electricity spikes could kill them?

Nick

Cheap components mainly to blame. We don't suffer from many spikes thankfully. PSU's often run close to or even over their rated supply in some instances and the cheap PSU's that are swamping the market just give up.