Is my 750W-Seasonic Tx enough for Rtx 3090?

I read rumours that Seasonic Tx had problems with that cards. Its ridiciolous. The most expensive model of Seasonic and issues. Read:

https://www.reddit.com/r/nvidia/comments/j0t2ob/psu_concerns_with_rtx_3090/

"Linus tech tips specifically had a problem with a Seasonic TX-850W tripping its OCP at 50% power draw on the 3090, causing hard resets."


So change that psu for a i dont know COrsaiR?!

 

I already demonstrated that you would be low on headroom.
Add that to the reported spikes some 3xxx series users are reporting and I would be concerned.
Buy a 1500W or 1600W and be done with it.
I personally have a 1500W, it was expensive and overkill, but with a 10yr guarantee I knew I would get my moneys worth in the long run.

 

Ok enough. Tommorow i will let you know. Thx

 

You have to consider my post with respect to the forum member I was replying to.
He worries, a lot, I merely suggested a completely worry free solution.

 

850 platinum or 80 gold plus and you're fine. 750 w is the minimum for these power suckers.

 

Its fine all plugged D

 

Hi, I have Seasonic Prime Titanium 850w, I7 4960X and a ROG Strix RTX 3090.
when benchmarking games like ACO, ACOD, System shuts down due to OCP
I measured the wattage of my entire PC, results that it cant handle more than 550w ~ 560w is far low than supported by PSU. Its a shame, a waste of PSU that worked well since Jan 2019.
What i had to do? lower my GPU Power Target to 85%
I dont think powering GPU with one splited PCIE + Single Cable would matter, I have been using splitted cable all the time for my 1080TI, never had this issue.

 

Use two seperate PCIe cables, can't be using a single pcie split on a 3090.

 

The only situation I can think off, is if you are encoding a recording/stream whilst playing a gpu demanding game and that encoding is in x264.

Otherwise most likely the not bottlenecked part will be way below max wattage.

 

the 750W titanium unit can apparently deliver 1050 W, opp triggers at 1053.19W (140.4%)
https://www.techpowerup.com/review/seasonic-prime-750/10.html

 

Even a 10 year old Corsair AX750 (based on Seasonic X-750) left running 24/7 for nearly that whole period can power a 3090.
Its running my overclocked 10700K + power hungry version of the 3090 with no issues.