Question PC black screens when playing games

[bblackfox]

My PC crashes when playing games, mostly high(er) resolution games (CSGO, Warframe, etc.) but has crashed on lower resolution games (g-mod, etc.) as well. The screen goes black on me and I can not do anything. The fans keep running on the PC so I know that the power is not cutting out. When it blacks out I can obviously hold the power button to turn the PC off then back on and it's all fine like nothing even happen.

I've tried to keep track of the temperature (using the NZXT CAM overlay program for gaming) when playing games to see how hot my CPU and GPU get before it crashes but I can only really get rough estimates of roughly 40-70 degrees Celsius roughly on my GPU with my CPU consistently staying cooler than that. There are chances that I could be missing a different temperature when the PC actually crashes and black screens on me so it's not perfectly accurate.

I have tried to increase airflow inside the PC unit itself, even taking the side window off to allow more/easier airflow into the tower. I've also tried lowering the graphics settings in the games to decrease the load on the GPU but has still crashed (the auto settings in the game run at HIGH). I've been curious if my power supply is not powerful enough to run the hardware (I bought the PC from Lyte Technology pre-built) but I am not certain with my inexperience with this stuff.

CPU: Intel Core i5 3470
GPU: Radeon (TM) RX 470 Graphics
Motherboard: LENOVO
RAM: SK Hynix HMT351U6CFR8C-PB DDR3 and Kinqston HP698650-154-KEF DDR3
Power Supply: SuperMax ATX P-400

I'm still very new to all the PC stuff and I'm trying to learn. I appreciate any help.

 

[Phillip Corcoran]

Could very well be the PSU, it's cheap & poor-quality:

[SOLVED] - Is Supermax any good?

I am going to build a PC for my friend, and need a 350-400w power supply and was wondering if the brand Supermax is any good? If not, do you think that SeaSonic is good? Thanks!

forums.tomshardware.com

So that's the first thing I would change without any doubt.

 

[Unolocogringo]

Black screens are a known problem.
Most people have had luck with a clean driver install of the latest drivers.
Use DDU in safe mode and check the box on the new driver install for a clean install.

Display Driver Uninstaller (DDU) 18.0.7.4

Official Display Driver Uninstaller (DDU) download website. DDU is a driver removal utility that can help you completely uninstall AMD/NVIDIA/INTEL graphics card drivers and packages from your system, trying to remove all leftovers (including registry keys, folders and files, driver store).

www.wagnardsoft.com

 

[Hellneo1]

I have the same issue, when playing games for a while and then it goes black screen but i can hear whats is happening in game still... it also happens at the moment i run any type of gpu stresser like furmark tried rollbacking the drivers, paste replacement and cable management and still have the same issue. there was a guy in another forum that he solved it by uninstalling a specific game on the pc that installed some type of internal setting in the pc but makes no sense to me since it happens all the time.