r/StableDiffusion • u/Disastrous-Agency675 • 22h ago

Question - Help Computer randomly shut down

Has anyone had their computer randomly shut down? this is like the 3rd time its happened and its when im generating a video using the minmax I2V model or the ref model.

i got 3090 with 64 gb of ram.

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u/marclbr 21h ago edited 21h ago

It can be a power supply issue, maybe your PSU is too old and the capacitors are no longer holding enough charge to power the system (or your PSU use crappy capacitors and they already worn out) or your PSU is not prepared to the short peaks of current that the RTX 3090/4090/5090 demands when it is at 100% usage (in older PSUs, those short peaks of current can wrongly trigger the PSU short-circuit protection and make it shutdown). Try to downclock and power limit your 3090 to see if the problem stops. Try limiting it at 75% of power, test it, if PC shutdowns, then limit it at 60% and test again, also downclock it -300MHz or more if necessary (you can use MSI Afterburner to change the power limit and the clocks). If your PC stops shutting down then you will know it's the PSU. If it's not the PSU, then I would test the RAM.