New build, fresh install, computer freezes up with heavy graphics use

georgeblack

Commendable
Dec 30, 2016
2
0
1,510
Hi, I'm trying to help my very frustrated teenage son with his PC that he's built himself. He's confident that he's bought components which should all be compatible but on running graphically demanding games (and "some" benchmark tests), the computer keeps freezing and requires a hard reset. I'll try to detail the problem as bast I can:

PC Specifications:

Motherboard: MSI Z170 TOMAHAWK
Processor: I5 6600K (3.5 GHz) CLOCKED TO 4.1 GHz
Cooler: SPC FORTIS 3 v2
Graphics Card: XFX RX480 GTR 8GB
PSU: CORSAIR VS650 650w
RAM: KINGSTON 2133 8GB
SSD: TRANSCEND 128GB SSD
HDD: WD GREEN 1TB
Windows 10 Home 64-bit

Benchmark Tests:
- Prime 95 - runs fine
- FurMark - runs
- Heaven Benchmark - crashes PC after 30secs - 1min (freezes, hard reset required)
- Fallout 4 (any presets between Medium - Ultra) - crashes PC after 30secs - 1min (freezes, hard reset required)
- Tested the RAM with memtest86.com. It passed.

Some other points to note:
• The PC always crashes in the same way - the screen goes blank (random colour) and the speakers emit a loud buzz. It is then completely unresponsive and requires a hard reset.
• This was a fresh installation of Windows 10 and all updates have been installed
• All drivers for all the components have been updated from the manufacturer's websites.
• He has tried default settings, overclocking and underclocking the GPU and CPU with no effect.
• He tried increasing the voltage to the GPU a little, with no effect.
• The PC operates fine browsing the net, watching YouTube, working with documents, etc. It only freezes during more graphically demanding situations, but even then it's inconsistent because FurMark is designed to push the GPU to the max, and it runs fine.
• The GPU never reaches more than 79 deg C and the processor never over 65 deg C

I would appreciate any advice. Many thanks.
 
Test the memory. www.memtest86.com => download the ISO and burn it to a disk => boot to the disk and make at least three passes testing the memory. Any errors will be shown and very could lead to the results you are seeing. Replace any bad modules...
 

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