PC starts for a few seconds then keeps rebooting

[Clone]

Title says all really. Yesterday my PC was working fine, now today it won't stay on. I press the power button and it turns on for around 10 seconds but then turns off suddenly and then reboots and does the same thing again over and over.

Could this be a PSU issue? The PSU I currently have is pretty cheap and I've had it over 2 years.

Specs:
i7 2600k
AMD HD6950
Gigabyte Z68X-UD3P-B3
8GB Corsair Vengeance 1600mhz RAM
Sumvision PowerX 800W PSU


Any input would be appreciated!

[Devin]

It's likely to be the PSU but the only way to rule that out is to test the system with another PSU if possible.

[Clone]

It's likely to be the PSU but the only way to rule that out is to test the system with another PSU if possible.

Unfortunately i don't have a spare to test it with.

[=AV=Rob]

Sumvision PowerX 800W
Never heard of that brand, looked it up and It's real cheap. That'll probably be your problem.
Even if it Isn't the problem I would change that to a Corsair PSU. More reliable and if it goes bang it wont destroy your system.

[Badboyz]

This is what happened to me exactly and I was expecting the same PSU problem but it wasn't a PSU problem.My motherboard cip was corrupted and luckily I had warranty for my motherboard.If your motherboard is still under warranty,send it for a depth check.Is the CPU fan working when you reboot ? Does it gives a loud sound ?

[Clone]

This is what happened to me exactly and I was expecting the same PSU problem but it wasn't a PSU problem.My motherboard cip was corrupted and luckily I had warranty for my motherboard.If your motherboard is still under warranty,send it for a depth check.Is the CPU fan working when you reboot ? Does it gives a loud sound ?

I don't think there's a warranty on my motherboard anymore.
The CPU fan seems to run as normal before the power cuts off.

[Badboyz]

I don't think there's a warranty on my motherboard anymore.
The CPU fan seems to run as normal before the power cuts off.

This is what happened to me.Probably,something relates with Motherboard issue.I suggest you to send your cpu for a in-depth check.In my opinion,this relates with motherboard issues.