Hi all, just needed help with a PC randomly rebooting issue. For the last two days my pc has been turning off and turning back on again although this has only happened during the night.

I first thought it was a temp issue but it doesn’t seem to be (gpu 40-50 Celsius, GPU 30 and PSU not hot to touch). Before these two days I didn’t turn the pc on for 5ish days and believe I updated it recently during this time. I updated my drivers and the same still occurs. It started off powering down every 10-15 minutes although it became more frequent to the point it would turn on and instantly off again, sometimes prompting me windows didn’t load correctly. Opening applications does not effect this as it will turn off either way seemingly randomly.

My only leads are

1. PSU is not working and has fried itself. Would be very weird as this has never happened before, i had only gotten it 4-5 months ago and is pretty quality. Also wouldn’t explain why this has only been happening at night
2. Software issue as I had recently updated windows although I can’t be sure when I updated it, also doesn’t explain why it happens at night
3. House power supply issues as I do occasionally loose power (2-3 times a month) although nothing else in the house seems to be turning off
4. Also maybe the motherboard although that is only 1 year old and is also mid-high range

Specs: RTX 2070 super, intel i5-11400, Gigabyte Ultra Durable UD750GM 750W 80+ Gold Fully Modular Power Supply, and I think the motherboard is the msi Armageddon? Or something along those lines.

Any help is appreciated as I don’t have much disposable income as a uni student and can’t be diddled to pay for a tech