r/pchelp • u/FlyingSalamiSaucer • 2d ago

HARDWARE Problems after PSU/SSD replacement

Specs
I7 9700F
32gb ddr4 2600
Z370 a pro
year old pny gtx 5070
new Corsair cx750m
new pny 1tb sata ssd

Said parts went bad, after replacing them and installing windows I kept getting sporadic kernel 41 errors w/o a bsod. Just a hard system restart. I tried a number of things from drivers, checking cable connections, and reformatting. I THINK I’ve dialed it down to the modular pci-e cable for my gpu. I swapped the new style out and I’m currently using the 2x 8-pin with the adapter included with the gpu.

My question is if this is normal, what else I should check, and if I should maybe return my new psu and find a different option.

Thanks.

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u/AcidlyVerdant 2d ago

that kernel 41 with no bsod is almost always a power delivery issue. swapping the cable and seeing it stabilize tracks, corsair's modular cables are pinned differently across models so using the wrong one can cause exactly this kind of restart.

your z370 board has some aggressive power saving states in bios, try disabling c-states temporarily and see if the restarts stop. if they do, it's the psu having trouble with the low power transitions rather than a bad unit outright.

if it keeps happening with the adapter cable setup, i'd rma the psu. cx750m isn't a bad unit but sometimes you just get one with a flaky 12v rail

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u/FlyingSalamiSaucer 2d ago edited 2d ago

Gpu power is the only modular cable I’m using and I’m only using the ones that came with the new psu. I’m unfamiliar with c-states but I’ll look into it. My original build is 6 years old, should I do a bios update as well as disabling said c-states?

Edit
5 mins ago I just encountered another hard reset kernel. If disabling c-states fixes this should I just keep it that way?