[SOLVED] Pc randomly freezes/restarts with black screen

[coolman2109]

Hi there, about 6 months ago my Pc started to randomly restart/ freeze. Sometimes 2 or 3 times a day or sometimes not at all for a couple of days. have tested the cpu, graphics card and ram with no issues. All my drivers are updated along with my bios. Also tried starting afresh with a wiped ssd but still occurs. Can happen at desktop while not doing anything or when gaming.

Specs
Summary
OS: Windows 10 Home 64-bit
CPU: Intel Core i7 4790
RAM:28.0GB Dual-Channel DDR3 @ 798MHz
Motherboard: Hewlett-Packard 2AF3
Graphics Card:4095MB NVIDIA GeForce GTX 970 (MSI)
Storage: 931GB Seagate ST1000DM003-1ER162 (SATA )
931GB Samsung SSD 860 EVO 1TB (SATA (SSD)) 34 °C
PSU: CIT Active 85 500w

 

[Grobe]

According to this forum thread:

CIT 500w PSU

I found this cheap good looking PSU. Shall I buy it or not? http://www.aria.co.uk/Products/Components/Power+Supplies/Non-Modular+650W+or+less/500W+-+ATV500+80%2B+Bronze+Power+Supply+?productId=63088

forums.tomshardware.com

That PSU doesn't have the best reputation, so bet is that the solution is to replace the PSU.

 

[coolman2109]

According to this forum thread:

CIT 500w PSU

I found this cheap good looking PSU. Shall I buy it or not? http://www.aria.co.uk/Products/Components/Power+Supplies/Non-Modular+650W+or+less/500W+-+ATV500+80%2B+Bronze+Power+Supply+?productId=63088

forums.tomshardware.com

That PSU doesn't have the best reputation, so bet is that the solution is to replace the PSU.

Ok thanks ill try that first.

 

[coolman2109]

According to this forum thread:

CIT 500w PSU

I found this cheap good looking PSU. Shall I buy it or not? http://www.aria.co.uk/Products/Components/Power+Supplies/Non-Modular+650W+or+less/500W+-+ATV500+80%2B+Bronze+Power+Supply+?productId=63088

forums.tomshardware.com

That PSU doesn't have the best reputation, so bet is that the solution is to replace the PSU.

Replaced PSU but the issue still occurs. Something I forgot to mention is that sometimes when it restarts the display resolution becomes extremely pixelated. Cant revert it wihout restarting manually.

 

[Grobe]

This last part of information here suggest GPU is bad.