Randomly Turns Off

[Valandil]

Specs

Intel I7 4770K

ASUS Maximus V1 Formula Z87

Zalman CNPS 11X Extreme Cooler

R9 290X 8GB Version

2 ssds, 2 TB  Hard Drive

3x Full HD Monitors

Windows 7

Corsair 32 GB Memory

Corsair AX1200I

 

My PC Randomly Turns off without a shutdown at random times, some times days, sometimes hours

 

I've replaced the power supply (Previously OCZ 1250W), due to it having problems and needing replacing

all parts except storage, memory and windows are new

 

I bought a new 24 pin cable and that prolonged the gap between turn offs

ran prime 95 and valley bench mark for 15 mins and it didn't turn off.

 

I've checked all hardware and cable connections and they are conected properly

 

I've never had this type of problem before

 

my gut instinct is that its the power supply. but its only 4 months old and I didn't have any issue for the first 3 months of having it.

[nanowatt]

Nothing is random.Try one stick of ram at a time.Come back and tell the results

[Valandil]

running Memtest86 atm

[Valandil]

ran the tests and the windows one and no problems with memory were detected with memory