PC occasionally resets randomly, but only when idle...
PC occasionally resets randomly, but only when idle...
Hey there! This is my debut here, so I’m really glad you’re checking in. I’m not sure what the usual rules are, but I’ll start with the basics. The problem is that my PC suddenly restarts without any error screen, and it happens quickly once it’s idle. It only occurs when I’m not using anything heavy, like during a game or while gaming. I’ve never experienced this while playing, and I even left a game open all night to see if it would trigger the issue—no restart happened.
From what I know so far, my system runs an ASUS AMD Ref. Board Ryzen 9 5950x with Corsair H150i RBG ICUe AIO, 64GB DDR4 memory, and an Asus NVMe 1TB SSD. I’m using an ASUS RTX 4090 TUF 850W power supply. I don’t have the exact model numbers, but I’m aware that running a 4090 with AM4/DDR4 isn’t ideal, so I’ve upgraded to an Asus ROG Strix B650E-F, a Ryzen 9 7950x3d, and 64GB Corsair Dominator DDR5 RAM.
I’ve tried updating the BIOS, refreshing drivers, changing the power supply, swapping the RAM, even flipping the CPU. Still nothing. It seems to happen mostly when the system gets too cool—like when I run a game in the background. As long as it doesn’t interrupt me, I’m okay with it. But I’m still curious about what’s going on and whether these new parts will help. Thanks for any tips you can share—I really appreciate it!
Check if PBO/curve optimizer is being used and confirm whether cstates is turned off.
Sure! Those terms are just special words people use in certain languages or fields. I’ll break them down in simple language so it’s easier to understand.
They're really checking if you've altered any settings in the BIOS, such as overclocking.
C-States enable the CPU to shut down when not under heavy use. Disabling them in the BIOS can resolve idle crashes, though it may raise temperatures and power use. Some Asus boards include a BIOS option called "PSU idle control" which might help with older PSUs. PBO/Curve optimiser lets you run the CPU at a lower voltage (with a negative shift), but this risks insufficient power at idle, causing instability. A positive shift might stabilize it, and this approach seems more effective on older B450 boards than newer ones. Which configuration do you have?
Thanks for your reply—it's really useful! To clarify, the 64GB configuration is two 32GB drives. I'll check if the updated components fix the problem, and if not, I'll explore alternative fixes.