friends Computer continually crashes help please

[LemonSpice]

My friend built a computer and it freezes after about 3 hours of use. He sent back his motherboard for repair but it was sent back fine. He sent his CPU for repair and that was sent back fine, too. He plugged in a different PSU and it was still freezing. He ran memtest86 and the results were ok. He tried the computer with the individual RAM stick and it still froze. He reinstalled Windows and it was still freezing. He even unplugged everything except for the PSU, motherboard, ram, CPU, and fans and it was still freezing in BIOS.

Parts:

PCPartPicker part list: http://pcpartpicker.com/p/6HZRVn

Price breakdown by merchant: http://pcpartpicker.com/p/6HZRVn/by_merchant/

 

CPU: Intel Core i7-3770K 3.5GHz Quad-Core Processor  ($329.97 @ OutletPC) 

CPU Cooler: Corsair H100 92.0 CFM Liquid CPU Cooler 

Motherboard: Gigabyte GA-Z77X-UD5H ATX LGA1155 Motherboard 

Memory: Corsair Vengeance 16GB (2 x 8GB) DDR3-1600 Memory  ($169.99 @ Amazon) 

Storage: Samsung 840 Series 250GB 2.5" Solid State Drive  ($199.00 @ Amazon) 

Storage: Western Digital Caviar Black 1TB 3.5" 7200RPM Internal Hard Drive  ($88.97 @ OutletPC) 

Video Card: Sapphire Radeon HD 7970 GHz Edition 3GB Video Card 

Case: Antec Twelve Hundred V3 ATX Full Tower Case  ($158.48 @ Mwave) 

Power Supply: Corsair Professional 650W 80+ Gold Certified Semi-Modular ATX Power Supply  ($117.46 @ TigerDirect) 

Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer  ($19.98 @ OutletPC) 

Operating System: Microsoft Windows 8 (OEM) (64-bit)  ($97.48 @ OutletPC) 

Keyboard: Cooler Master Storm Trigger Wired Gaming Keyboard 

Mouse: Logitech G500 Wired Laser Mouse  ($72.78 @ SuperBiiz) 

Other: Precision Gaming Surface - Black ($7.91)

Other: Achieva Shimian QH2700-IPSMS Edge Eco 27" 2560x1440 AH-IPS LED DVI PC Monitor ($339.00)

Total: $1601.02

Prices include shipping, taxes, and discounts when available

Generated by PCPartPicker 2014-09-16 12:20 EDT-0400

all help is appreciated

[LemonSpice]

h

[LemonSpice]

HELP Please

[Deserter15]

My own computer tends to have this problem but I share no parts with your friend.  The only thing we share is Windows 8.

[ohJey]

Check temps

Run memtest and make sure the RAM is ok

try installing windows on the HDD (maybe bad ssd)

run some stress tests

[LemonSpice]

Check temps

Run memtest and make sure the RAM is ok

try installing windows on the HDD (maybe bad ssd)

run some stress tests

temps were fine and memtest went fine

[ohJey]

temps were fine and memtest went fine

what about the hard drive, my son?

edit:  actually crashing in the bios probably rules out the hard drive, maybe motherboard?

maybe try onboard video to see if the GPU is bad

taking out the GPU could also put less stress on the PSU, maybe it's failing under load

[LemonSpice]

what about the hard drive, my son?

edit:  actually crashing in the bios probably rules out the hard drive, maybe motherboard?

maybe try onboard video to see if the GPU is bad

taking out the GPU could also put less stress on the PSU, maybe it's failing under load

the su was my first though i told him to try a new one but he hasn't gotten around to it

[AMG-Tech]

As OhJey said try taking out the GPU.

 

Also OhJey do you even read the main first post, the first things you asked him to do he had already done.....