Pc Frezz or shotsdown random

[Visler7000]

Hi there i got a problem with my pc at home. suddenly shutdown werry random in Windows or bios wont madder. sometimes it frezzes completely like caps Lock and num Lock on the keyboard wont turn on off when frossen the pc whil then shutdown after 10 sek always 10 sek. the system has worked with no problems for about 2 years whit no new hardware added. It will crash or frezze when idle or playing totally random.

 

 

what i have tryed my self:

 

clean install Windows whas the first thing i did no change

temp monitor shows nothing high not even when playing the system is not oc

Testing ram and switching ram that dident Work and the ram Works

Testing and switching harddrive no change

switching my motherboard to and older one i have no change

Switching grafic Card no change

 

 

so is it the?

CPU? I7 2700k not oc http://ark.intel.com/products/61275/Intel-Core-i7-2700K-Processor-8M-Cache-up-to-3_90-GHz

or

PSU? Cooler master gx 650 watt bronze http://www.newegg.com/Product/Product.aspx?Item=N82E16817171052

How do i test whitout having to get a new cpu or psu?

 

Or is there something i missed? plzz help

[NotCthulhu]

Bad hard drive possibly?

[Guest]

Try rebooting with all USB devices unplugged.

[Visler7000]

already switched it out still the same

[Briggsy]

might be something wrong with the keyboard

[Visler7000]

ohh yea also tryed that it crashed in bios had noting plugged into it

[Guest]

It looks as if it's an error with either the motherboard, and/or the HDD.

[Visler7000]

used a old keyboard that dident use usb

[Visler7000]

i switched the motherboard and my hdd even took my ssd from my new pc into it still the same

[Visler7000]

also tryed setting bios back to normal settings that did nothing

[Sack]

-snip-

First of all it's written like this:

 

With

Shutdown

 

Second, have you tried checking the RAM? this is the exact same thing that heppend to a computer I had to fix.

[Visler7000]

yes i said that in my post tryed new ram and also testet the ones im using

[Visler7000]

ran a program called mem test for 24 hours

[Visler7000]

the pc shots Down randomly somedays it dont and somedays i get 4 crashes right after another

[Visler7000]

and if i take all the power from the machine then reconnect it the pc will frezze and shutdown when i try to power it on Again

[Visler7000]

ohh and this pc can somehow wake itself from standby mode ?? dont know if that has something to do whit the crash?

[Diederik_Gr]

Faulty motherboard is the first that comes to mind, but you already closed that out. I think the problem is with the PSU, maybe it's not able to power the computer properly, which is surprising considering Cooler Master isn't a bad brand when it comes to PSU's. It could be the processor as well, but they are rarely the issue.

[Visler7000]

well my bios tells me that the psu is putting out the right voltage after what i can se the psu voltage is all good to the numbers it should be

[Visler7000]

i can run Intel burn test on my pc and dossent seem to frezze or crash maby compatibility problems?

[Visler7000]

Im taking the machine to a repair shop ill be back when i get answer from them

[Visler7000]

just got the pc back from the repair shop surprice the PSU did something wrong but only wheen booting after a complete power off then it would go unstable they installed a new one im all runing Again ty all for the help tough.