Windows 10: PC crashing when gaming randomly, switching power plans also crashing.

My PC specs are:Windows 11 Homei7-10700f32GB DDR4RTX 3070850W 80+ Gold currentlyBIOS is on latest updateIt is an ASUS Prebuilt.I've had this PC for a good few years and it's been a gem. Out of nowhere the PSU died and I had to replace it. I used to constantly switch my Power Plan after the PSU swap from "High Performance" to "Power Saver" to try and decrease power draw to elongate the life of it. Ever since the PSU swap, I've been having issues with my PC randomly shutting off. It used to be every few months, then monthly, and then it went to hourly. It was working entirely fine for a good 6

:)

 

Games crash when pc is in balance prefomance mode In power plans but run when the power plan is set to power saving why?

If games do not crash on the power saving plan and your games are performing as expected, then use that power plan.

 

PC Randomly Crashing

Hi, It may be several reasons behind the computer crashing randomly like a driver issue, operating system issue, excess heat up, hardware miss configuration and insufficient RAM. As you said you have stable power so track
one of these reasons which is a perfect cause behind the random system crashes. You can check manually and will able to fix it. But before I will suggest you take backup of your system. It may be possible for data loss situation. Thanks

 

all games crash!

I suggest you run rthdribl > http://www.daionet.gr.jp/~masa/archives/rthdribl_1_2.zip
Increase the window size step by step and watch your vga temps permanently.
What happens?
If it crashes, run at stock speeds as suggested before and retry.

P.S.: When your system locks, does the display signal turn off after a time?
Stuttering sound or no sound at all when freezing?
What X1800XT model do you own exactly?