Issue with PC shutting down after 2/3 seconds during startup
Issue with PC shutting down after 2/3 seconds during startup
This problem is quite erratic but I'm trying to confirm it isn't a bigger issue.
It started roughly a month and a half ago; the system turned on, lights and fans worked for about two seconds before shutting down, then repeated this pattern. I suspected the extension cable might be the cause, so I replaced it and everything functioned properly. It occurred again a few weeks later, and changing the power cord resolved it once more. Now it's happening for the third time, and gently moving the power cord seems to help.
Is this related to the power supply unit? I don't want to overlook it if it signals a problem.
By the way, I forgot to note that the PC entered safe mode the first time after an issue.
Welcome to the forums, newcomer! Here are the specifications for your build in the requested format:
CPU: [CPU details]
CPU cooler: [Cooler information]
Motherboard: [Board details]
Ram: [Memory type and amount]
SSD/HDD: [Storage type and capacity]
GPU: [Graphics card model]
PSU: [Power supply information]
Chassis: [Case model]
OS: [Operating system]
Monitor: [Display details]
Please include the age of the PSU along with its make and model. BIOS version for your motherboard at this time.
CPU: Ryzen 7 5700x
CPU Cooler: Arctic Freezer 36
Motherboard: Asus Prime X570-P (BIOS: 5031)
Ram: Corsair Vengeance RGB Pro (2x16gb)
SSD: Crucial MX500
GPU: RX 9070XT
PSU: Corsair RM750 (5 and a half years old)
Chassis: Corsair 275R Airflow
OS: Windows 11
Monitor: KTC H27T22C-3
I swapped my GPU and CPU at the beginning of December, so this issue might not be related to my actions.
Usually I'd mention that restarting the chain after a short time could indicate heat issues, but if switching power cords or shaking the cord resolves the problem for weeks, that seems less probable. A five-year-old upper mid-grade PSU isn't old much, but based on these signs, it probably points to something related to heat. If simply moving the cable works, unless you have multiple cables with poor connections, it might suggest a thermal expansion issue causing a disconnection somewhere in the PSU.
It looks like a power-related issue. My initial thought is a power surge or a protection circuit in the PSU triggering. Changing the power cable could restore it. A UPS with line conditioning might assist, but a new PSU could also fix it. It's hard to say without testing or knowing other symptoms.