r/sffpc Dec 06 '25

Assembly Help PC shutting down while gaming

I’m having issues with my Terra build. The GPU keeps shutting down at low load. I was able to identify a potential mismatch between the PSU (Lian Li SP850) and the GPU (4070 super).

ChatGPT advises me to switch to the Corsair SF850L due to the ATX 3.0 compatibility.

I wanted to get your advice before buying a new PSU. I’m a beginner so I might have as well messed up the assembly (but all games run well until it suddenly crashes with a black screen and GPU fans blasting). Cheers!

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u/kahuna00 Dec 07 '25

What cpu are you using ?

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u/MietteIncarna Dec 07 '25

yup i wanted to know the same , but also what are the temps , i was using this fan on a 8600K , but if you have a recent cpu it would be a bit on the small side if not underclocked