After i installed my new Asus RTX 2080 yesterday my pc shuts down all the time, while playing games, i got more than enought cooling for my cpu, my card is at 50 ish, and ive tried cleaning my psu, ive tested everything i can test, my mobo is ASUS ROG STRIX Z390-F with i9 9900k. ive tried removing ram ive reinstalled, b4 the upgrade i had dual 970's so going down to only 1 card should draw more power, but i am starting to wonder if it must be the psu, if it aint the actual rtx 2080, any ideas?