Gaming PC instabiliity

[Sydneyblue]

Im trying to find what is causing it. The first system i built was around November 2024
12700kf hyper 212 cooling
Z790 Tuff DDR latest bios
DDR5600 Fury 16gbs and *6400 renagade 32gbs hardlocked with both in running at xmp profiles
*ROGthor 2 platinum 1000w
*Asus TUFF 4070ti super OC
Samsung 1tb NVME gen 4

I was getting the buzzing and restarting in cyberpunk and BF2042 so i returned the mobo cpu and NVME
I keep the PSU and GPU
so after christmas i grabbed
14700k with Ryujin III 360 latest bios
Z790 E strix DDR5
*6400 renagade ddr5 32gbs
*ROGthor 2 platinum 1000w
*Asus TUFF 4070ti super OC
Samsung evo plus 2 tb

couple weeks i blue screen while optimizing shaders in COD black ops 6
yesterday i keep crashing on the shader screen in hogwarts legacy

I order a exact replacement PSU ROGthor 2 platinum 1000w and hogwarts loading fine but i decided to double check the older thor and hogwarts loaded fine so im like wtf. Also been getting usb issues where i would get the error where the usb didnt reset.

Im completly stumped on this . I looked into the case and didnt notice anything weird like a cap bulging.
Any help appreciated

 

[Sydneyblue]

I just wanted to give a update so i returned the PSU and my Game froozed playing the new assassins creed with buzzing when i tested frame generation. I went into the bios and dialed back the ram to the 6000 profile with xmp 2 from 6400 xmp 2 like people have suggested. Watch it be the PSU xD lol

 

[Sydneyblue]

Ok so after setting the ram to 6000 xmp2 right when i confirmd frame gen boom crash with buzzing lol. I think i should of keep that psu but oh well live and you learn. I did read that peopel were having issues with this game and frame gen. They were pointing to Nvidia drivers. I dont know

 

[texh]

That buzzing can be PSU but that doesn't mean its bad or defective. Almost all the PSU give buzzing sound at certain frequencies reached.

Put all the settings on default using one dimm and stress test with prime95. Check your temps.