ALL Unreal Engine 3 Games Crashing Computer (UE3/UE4 Hybrids do not)

[suddenlybullets]

I've had this issue for a few months now and I'm kind of getting really fed up with it. Basically any game that runs on unreal engine 3 (i.e. Borderlands 2 and Pre Sequel, SOMA, Dishonored, UT3, and so on...) cause my pc to lock up after an indeterminable amount of time. The screen flashes a color and the sound loops until the pc tries to reboot itself. It can't so I hard power down.

My specs:

Intel core i5 4460 3.20 Ghz
8 GB RAM
NVidia GTX 750ti 2GB
230W External PSU <---- (This could be the problem but I'm still not sure because much more demanding games like fallout 4 do not crash)

I've checked my RAM for faults with both the windows memory diagnostic tool and memtestx86 and nothing came of it.

I also did a clean install of Windows 10 off of a bootable drive and played Dishonored immediately after. Still crashed. (Some asshat on the borderlands 2 board insisted i do this)

I'm about to give up. Any suggestions? Help? Possible fixes?

 

[cats_Paw]

Even if its not the PSU (It might be something else) You have a time bomb there.

http://www.guru3d.com/articles_pages/nvidia_geforce_gtx_750_and_750_ti_review,5.html

If the PSU is of poor quality, its almost certain that it is the problem.

 

[suddenlybullets]

Even if its not the PSU (It might be something else) You have a time bomb there.

http://www.guru3d.com/articles_pages/nvidia_geforce_gtx_750_and_750_ti_review,5.html

If the PSU is of poor quality, its almost certain that it is the problem.

I do know that I have the option to get a second 180W power supply. What I can do is hook up the 230W supply to power the graphics card and have the 180W supply power the rest of the system. there's two power inputs on the back of the tower...

I'm just trying to figure out if it's the psu or not still. I'm trying to steer away from it being the issue because of the nature of the crashes, with them happening ONLY with Unreal Engine 3 games. Any other games I run on this computer like Fallout 4 and Rise of the Tomb Raider can be played for hours without any issues.

 

[gamerk316]

Smart moneys on the PSU.

 

[cats_Paw]

Dude, you are about to drive over a cliff and you are worrying that the sprinklers are not working....

Can it be something else? YES. Is there a high probability that it is the PSU? YES.
To test, see what amount of GPU and CPU is used in fallout 4. The game might be poorly optimized (as is common by Bethesda and their console ports) and because of that it might not even stress your system enought to crash it.

By the way, you keep waiting to stop this problem and by the time you do it might be too late. A PSU when it dies not always dies alone, it can take away something with it.

UT3 was also the most heavily modified engine so it seems it scales rather well, meaning it most likely CAN use all the GPU power, and if your 12V rail on the PSU cant handle it, its no surprise it crashes.

If you are unsure, find a way to test it (at a place where they can put anotehr PSU in and see).

DONT ADD another crap PSU. PCs are like cars: they run to the lowest common denominator. It means if the PSU is crap, the entire PC is crap (and what is worse, in danger)

At least tell us the model of the PSU so we can confirm if that is the problem.