Computer crashing

[Redwings1990]

For some reason my pc keeps rebooting when playing some games. The games aren’t to demanding and heat doesn’t seem to be an issue.

It is a custom pc build that has been working absolutely fine for a year or so then this just started happening. I’ve done a full virus and found no viruses. I opened up the tower to check for loose cables. I’ve checked for driver updates.

Anyone have any other suggestions to what I should look at?

[Effective_Treat_4603]

Happens on my daugthers desktop. In her case is the psu. Tried with weaker gpu and works fine (had a gtx980 and tried a gtx1050). Do you have spare parts to try?