[SOLVED] Power supply for Galax HOF Extreme 3090

Juffbox

Reputable
Apr 4, 2020
40
4
4,545
Hello I have the GPU described in the title on the way, which recommends a 1000w PSU.

The card's TDP as stated by Tom's Hardware is 450W. I'm using an i7-9700k as the cpu. So my question is would I be likely able to get away with using an RM750x (which is what I currently have) provided I don't OC the HOF 3090 and use stock settings?

Thanks
 

Juffbox

Reputable
Apr 4, 2020
40
4
4,545
Possibly no. 3090 are known to produce very high power spikes that can trip the OCP on PSUs, up to and including the RM850x.

https://forum.corsair.com/v3/showthread.php?t=201374

Thats an interesting post that you've brought attention too. The problematic case involves a 3090 FE and an RM850x which makes me suspect theres some defect on either the card or the psu, as many 3090 models recommend 750 or 850w psus. Nonetheless I think your point is very valid and thanks for that. I think it's probably the safest to go for a good 1000w psu.