psu 750w

From the last few days, whenever I turn on my PC, everything is fine. I usually play games like Valorant, League, PUBG, Warzone and several AAA story based games. The issue does not occur when playing less demanding games like Valorant or League, but when I play more resource intensive games...

Got an issue when i am playing a gpu heavy game the games crash after 5-10 min i found a fix. The fix is to set my power limit to 60-65% useing msiafterburner. I got a 750w and a rtx 3060 ti (lhr) . Is this an issue with my psu or gpu?

I'm planning to build my new rig tomorrow, but I'm starting to second guess my PSU choice. So I figured I'd bring it up here, just to get more ease at mind. Build: 3070 Gigabyte Gaming OC Samsung 970 EVO 1TB NVME M.2 Kingston A2000 1TB NVME M.2 Kingston KC600 512GB SSD Corsair Vengeance...