PC fails to power off promptly upon booting up
PC fails to power off promptly upon booting up
Hello everyone ^^ The problem with my old system, which also served as a family PC and Plex server, is it fails to stay on. It shuts down completely after just a few minutes, sometimes before any windows appear. The motherboard lights completely turn off until I power it off or on again. So far, I’ve managed to enter the BIOS and everything looks normal – CPU temps around 40°C, motherboard at 30°C. I also got into Windows Safe Mode, which stays stable for hours without issues. PC specs: https://pcpartpicker.com/list/FjV3bh PSU: Thermaltake TR2-800AH2NFB 800W My intuition points to the power supply. Thanks in advance (^.)
It seems like a power supply unit problem might be the concern. I've heard many negative experiences with TR2 PSUs, and I even encountered one failure in my own system. There was a spark somewhere on my motherboard, yet the board still functions today. I suggest swapping that PSU even if it seemed fine, just to rule out any issues.
I believe it might be the power supply unit, but I just want to double-check. I don’t want to waste $100 to $80 if the problem persists.
Inspect the motherboard closely for electrolytic capacitors, checking for any bulges on their tops. Remember that the one I had a year ago was replaced and the system still functions. The other unit has components in its PSU, including capacitors. You likely don’t have the tools or expertise to swap these parts, but they can help identify potential issues.
It would need a multimeter that I don’t own. If it’s the PSU, I’ll use a Seasonic model. For wattage, PCPartPick suggests around 460 watts, but a safety margin would be at least 500 watts.
That’s a reasonable price for a Seasonic B12 BC 750w, around $100 should be fair depending on the retailer.