I made a PC for a friend as a birthday present yesterday but it went crashing today all the time. Monitor showing weird colours and pc restarting the whole time. Also windows going to their own troubleshoot options (the one blue screen with options and low resolution). We used his old GPU, hard drives and some sata cables from his old pc because i couldnt buy a new GPU right now but he would have the option to buy a better one later.
Specs:
Aorus elite b550
Ryzen 5 3500
nvme ssd 500gb kingstone A2000(new), 125 gb ssd (old), 500 gb and 1tb hdd.
Ram: Corsair DDR4 Vengeance RGB Pro 2x8GB 3200
PSU: Gigabyte GP-P750GM 750W
GPU: GTX 760
I made some pc's (for friends mostly) before his one so I have a little bit experience with that. Never have I seen this before. Every little help would be appreciated.