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SLI'ing 980ti

NeoReloaded

NeoReloaded

NeoReloaded

Soldato
Joined
16 Oct 2005
Posts
3,681
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Poole
Hi guys I'm planning on SLI'ing my 980ti within the next week and wandered if my PSU will handle it ok? Full specs;

Case : Volcano Envy Green ATX Pro Gaming Case + Green LED Strip Lighting
Power Supply : EVGA SuperNOVA 750 G2 Power Supply 80+ Gold
Motherboard : Gigabyte GA-X99-SLI
CPU : Intel 5930K Extreme I7 Six Core 3.5Ghz CPU @ 4.3 GHZ
Cooler : Corsair H80I GT Water Cooler
Hard Drive : 120GB Solid State Drive as Primary Drive + 2TB Seagate SATA3 as Storage Drive
Memory : 16GB DDR4 2666mhz Corsair Vengeance LPX Memory
Graphics Card : Geforce GTX 980 TI 6GB
Software : Windows 10 Home 64 Bit Edition

Thanks :)
 
I would want at least a 850w psu for Sli 980ti, maybe more as you are on X99. As you need a new one anyway and if you wanted to stick with EVGA it's only £20 extra for the 1000w EVGA Supernova G2 compared to the 850w version. Either of these will see you good:-

My basket at Overclockers UK:

Total: £286.08
(includes shipping: £11.10)
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The XFX is a Seasonic built unit.
 
NeoReloaded said:
Opened up my case and it turns out my PSU is actually an XFX Pro 850w Black Edition.
Still cutting it too close for two 980ti's?
Click to expand...

I personally think you would require a little bit more power for reliability and piece of mind. GFX cards are obviously becoming a lot more power consumption friendly. For piece of mind and possibly future proofing Id upgrade.

EVGA are currently offering a 10 year guarantee on some of their units.

A little over kill I know but I decided on this one https://www.overclockers.co.uk/evga...ar-power-supply-220-p2-1600-x3-ca-020-ea.html.
 
Last edited:
tyler_jrb said:
1000w at the very least there. Mine run 800w+, often up to 870w when gaming.
Click to expand...

If that is being read from the socket, you can knock a good 10% off for conversion losses

@OP, if you have an 850 I would give it a go, that xfx is a pretty decent power supply

I have a watt meter on mine and I've never seen them go over 800W
 
In a moment I will look at what my SLI 980s draw from the wall... Just need to drag my ass out of bed and find my plug. I think XFX are Silverstone OEM so you might get away with it!
 
OP you really need to look at this the other way round.

If you had a 1200watt PSU it would be overkill but on the plus side -

You would have no problem with 980 Ti SLI.
The PSU would be running in it's most efficient mode and quite cool.
A lot of the time (depending on brand) the PSU fan would not need to run and so quieter.
You would have plenty of headroom for future upgrades.

As to the original question a 750watt PSU could really struggle as it will be flat out a lot of the time and overclocking the CPU and/or the GPUs could push it over the edge.
 
well, I would love to come to you with a full report to let you know my powerdraw, but as soon as i plugged my plug in (tbh, it has been kicking around my toolbox for a long time) the LED display went so dim I couldn't read it.

As Kaap has said though, a large PSU is better wasted than a small PSU struggling all the time.

Sorry i couldnt give you proper figures though =(
 
mine uses 550-600w
i7 5930K
980 SLI
4x 1TB SSDs
1x NVME drive
superflower plat 1300w

this is with cards maxed in Witcher 3 cpu at 50% odd
 
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