Power supply for GTX 980 SLI system
- Thread starter JoeR123
- Start date
Victorion
Reputable
- Nov 9, 2015
- 1,042
- 0
- 5,660
You can get a great deal right now on a premium PSU ($40 discount offer right now)
PCPartPicker part list / Price breakdown by merchant
Power Supply: SeaSonic 660W 80+ Platinum Certified Fully-Modular ATX Power Supply ($79.99 @ Newegg)
Total: $79.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-01-12 13:03 EST-0500
If the PSU you have is EVGA NEX650
Then 12V rail and 3.3V rail stability isn´t great and ripple suppression is little below what you want.
With 2 expensive 980 TI cards and overclocking, a premium PSU is a must.
Either get the Seasonic above, or consider Corsair AX760 (I have 2 of them, and they are excellent)
PCPartPicker part list / Price breakdown by merchant
Power Supply: SeaSonic 660W 80+ Platinum Certified Fully-Modular ATX Power Supply ($79.99 @ Newegg)
Total: $79.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-01-12 13:03 EST-0500
If the PSU you have is EVGA NEX650
Then 12V rail and 3.3V rail stability isn´t great and ripple suppression is little below what you want.
With 2 expensive 980 TI cards and overclocking, a premium PSU is a must.
Either get the Seasonic above, or consider Corsair AX760 (I have 2 of them, and they are excellent)
This review is recommending 700-800w which is inline with others http://www.guru3d.com/articles-pages/geforce-gtx-980-sli-review,4.html
While there is no need for overkill I would avoid getting a PSU that's going to be working hard under full load, there is no need or point, it's asking for trouble. With the amount of money tied up in your system a good quality 750w or more seems like a good investment to me
While there is no need for overkill I would avoid getting a PSU that's going to be working hard under full load, there is no need or point, it's asking for trouble. With the amount of money tied up in your system a good quality 750w or more seems like a good investment to me
bootcher
Splendid
- Feb 22, 2013
- 2,630
- 1
- 22,965
It depends on which EVGA model exactly you have, since there are several. For 2 GTX 980's in SLI you will be needing about 55 amps on the 12 volt line, so a 650 watts might not be able to provide it. Usually a good 750 watts or more would be fit for the job.
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