R9 390X on a 600w psu?

tooncake

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Nov 22, 2014
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Hi guys,

I would like to ask if my Seasonic M12II-620 EVO 620W 80Plus Bronze PSU would work with the range of R9 390x gpu as I'm planning to upgrade my GPU soon. I also have no plans in overclocking my gpu.

Note: I can't choose NVIDIA series 'cause they are more expensive here in our country compared to RADEON's.
 


how 'bout R9 390? If I'm right the recommended PSU for that is 650W, but I keep seeing these threads in here and from other forums as well that it could be run with a 500w psu - so as long as the brand is highly recommended.
 


@Chump Thanks for that info!

Btw, my build is:

- i5 4690 (non k) cpu
- ASUS Z97-A mobo
- Kingston hyper x fury 8gb

Is my build good with my gpu plan?
 


Thanks for the info, well my CPU is i5 4690(non-k), I guessed I shouldn't worry about it then?
 


That 620w Seasonic should work good for those specs.
 


Thanks a lot @Chump! Guessed I'll start scouting for that GPU now. :)
 


Thanks for these info @ko888

Though the way I understand it (correct me if I got this wrong) is that these are stress and torture test for each gpu series? And it seems that I'm looking at R9 390X with an average consumption of 350+w under these tests ..

Does that mean I'm still good for it with my 620w Seasonic psu with these info as my basis?
 


Gaming power consumption was also shown, in that review, on the previous page.

The power supply should always be sized to handle the worse case power draw scenario. You don't ever want the system to be shutting down due to overload because of insufficient power supply capacity.

Also don't base your power draw calculations on an AMD Reference Design Radeon R9 390X card's power draw if you're not using a reference design card. Some of the non-reference design factory overclocked cards draw more power and the card manufacturer has used two 150-Watt 8-pin PCI Express supplementary power connectors instead of the one 75-Watt 6-pin and one 150-Watt 8-pin PCI Express supplementary power connectors used on the reference design cards.

Some of the AMD R9 39?? GPU cards have been shown to violate PCI Express supplementary power connector maximum allowed power draw specs.

Based on your given system specs you should have sufficient capacity on the most critical +12V rail.
 


@ko888

This is a thorough explanation about the link that you have given me. I'll definitely take note of this esp for future reference. Thanks man! This one's really helpful not only for me but for the others as well. :)