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Custom-Built PC crashes randomly when playing Video Games

UbermenschTF2

Commendable
Oct 31, 2016
1
0
1,510
EDIT: I swapped the old GPU with a GTX 1060 6GB, and it is crash free! Thanks Sir Duck on steam for the fix!

Before anything else, my specs are:

CPU: AMD FX 6300 (@ 3.5 GHz) - Has not been Overclocked.
GPU: AMD Radeon RX 480
PSU: EVGA 500 B1
RAM: Ballistix Sport 8GB DDR3
Mobo: Gigabyte 970A-UD3P
SSD: Sandisk 240GB
HSF: Cooler Master Hyper 212 EVO
Case: Cooler Master HAF 912
HDD: Seagate 1TB

I had someone who had a lot of experience in building computers over at my house on Sunday, and using the parts stated above, we built the PC. I installed Windows 10 on the SSD, and it seemed to be working great after that! After finishing installing my video games, I found that my FPS is very high, and visually smooth. After about 10 minutes, the monitor randomly freezes; a gray-ish color. When this happened, I tried the Windows Key, and Ctrl+Alt+Del. Eventually, I just had to turn off the power supply, turn it back on, and restart the computer. I figured it was just because this was the Computer's first time on. But, no matter what game I play, and how awesome the frame rate is, the problem persists. I looked into it, downloaded a bunch of Radeon Drivers, used the "AMD Radeon Settings" application, configured with some battery settings, but nothing worked, and all of my drivers are up-to-date. I'm wondering if this is happening because the RAM I bought for the Computer is too cheap, or perhaps it's because I installed Windows 10 to the SSD rather than HDD. The person who helped build the computer said he needed to bring one more cable over on Wednesday/Thursday, and it's for the HDD. Could that be it? Thank you to anyone who takes the time to respond!
 
Solution
Check what the temps are in the system with HWMonitor. Maybe the power supply, or something is loose in the system. Reseat the RAM and connections.