Hey all.
Scored a 3090FE yesterday so looking to make sure everything is nice and stable before I slap it in my build. Seems I have a bit of a problem though.
I've got an old gold label Corsair RM850. Turns out that it isn't providing clean enough power for my system. Currently testing power limits with:
3900x (modest offset undervolt of -0.125mv), HWinfo reports a peak P95 power draw of about 190w.
ASUS ROG Strix 2080ti OC. This is where I'm getting the feeling that I won't be able to run a 3090 off of this PSU. I can game and run stress tests and benchmarks stable at 90% and 100% power limits, but once I bump that up to 110 or 125 I get app crashes, Blue screens, and hard system crashes. This is concerning since, according to the information available so far, a 125% 2080ti strix pulls as much or less power than the 3090 FE at stock.
To remedy this I've been looking at a replacement psu. Right now I'm trying to choose between 3 based on the tier list.
1) 850w Thermaltake Toughpower GF1 80+Gold
2) 850w be quiet! Dark Power Pro 11 80+Platinum Multi rail
3) 1000w FSP Hydro G Pro 80+Gold
Right now I'm leaning toward the be quiet unit just to make sure I get the most efficiency as I can, but it is $70 more expensive than the Thermaltake. The FSP is only up for consideration due to overkill complex,but I'm not even sure if a1000w 80+gold is even going to supply much more peak power than an 80+platinum 850w anyway.
And that's why I'm here. Any input would be appreciated.