Can i run SLI?

likedxm

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My system will be:

AMD FX-8350
16GB Vengeance 4x4gb ram
Asus sabertooth 990FX MB
120GB Samsung evo ssd
1TB Seagate hdd
Corsair H100i liquid CPU cooling
Corsair CX750W PSU
Asus GTX 770 2GB

Can I run SLI with 2 of these cards?
 
Solution


I'd stake my life on it.

LOL. Seriously, PSU calculators *shouldnt be open to wide degrees of variance. Now, there comes some flex if you dont account for an OC, a power hungry cooling set-up...etc. I ran your test with all the listed specs, and assuming you had...

likedxm

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Someone has mentioned this before, i don't really want to spend another £100+ just for another 2GB on the same card :s
 

jrlawson

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The motherboard supports it yes. The power supply on the other hand may not. I've heard of people running sli 770 with only 750w but I believe that may be pushing the capabilities of the psu. To be safe I would get an 850w psu just so the psu isn't close to max output while gaming.
 

toddybody

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Answer is yes:) And dont worry about the VRAM issue above...I had 2GB 670's in SLI on my 1440p display and never had an issue with needing more video memory. In my experience...that only arises with some high AA levels combined with texture mods. GL with SLI friend, its the best!
 

likedxm

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I'll have to have a look into a bigger PSU then.
 

toddybody

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Just ran a PSU calculator with those specs at 100% load...643watts. 750w should be fine for now.
 

jrlawson

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Corsair RM850 is a good one. Other good brands include XFX, and Seasonic.
 

likedxm

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Glad to hear this off someone that has experienced this before, thanks a lot :)
 

likedxm

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How accurate is this PSU calc? I know that Asus have one and it seems way off!
 

toddybody

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Anytime friend, congrats on the 2nd card...Dual 770's are beast!
 

toddybody

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I'd stake my life on it.

LOL. Seriously, PSU calculators *shouldnt be open to wide degrees of variance. Now, there comes some flex if you dont account for an OC, a power hungry cooling set-up...etc. I ran your test with all the listed specs, and assuming you had 4 120mm fans. Shows you still have ~100 watts to spare. IMO, thats a healthy margin of safety...but if youre unconvinced, run your specs on several calculators and compare. Never hurts.

PS: If you really want the peace of mind, grab an 800w+ PSU. Anything by Seasonic, Corsair (AX is best), Rosewill, etc...is a good option. Im a Corsair Fanboy in full disclosure ;)
 
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likedxm

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Haha i'll definitely be running SLI in the future, thanks for all your help!