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-   -   Powering GTX480 SLI + overclocked I7 (https://www.hardwarecanucks.com/forum/power-supplies/37877-powering-gtx480-sli-overclocked-i7.html)

matsta31 November 11, 2010 12:55 PM

Powering GTX480 SLI + overclocked I7
 
I will be building a SLI GTX 480 + i7 Overclocked and I am currently uising a silvestone strider 850 W. Will it cut it ? I suppose it is getting close....

Ncix has the antec Quatro 1000 W in special this week, I suppose it would work, but would it be better ?

NCIX.com - Buy Antec Truepower Quattro 1000W Power Supply ATX V2.2 EPS12V 20/24PIN Active PFC 80PLUS 2X8PIN PCI-E - TPQ-1000 In Canada.

lowfat November 11, 2010 01:08 PM

Your 850W will be plenty fine.

_dangtx_ November 11, 2010 01:09 PM

expect around 650 watts for the cards furmarked, or around 525-550 w in normal gaming mode and maybe 200-250 for the cpu, depending on the maddness level of oc :)

so itll be ok in normal gaming mode.

ive seen dual 480's on corsair 850 watt models(non modular)

matsta31 November 11, 2010 01:17 PM

yeah, I tought so for normal usage, fodling would make it close.. altough I could fold on one of the GPU only if it become a real problem....

_dangtx_ November 11, 2010 01:21 PM

well folding should not equate furmark numbers, where did i see that graph now....

rjbarker November 12, 2010 06:15 PM

I know many may disagree....if Z_ro was here he'd blast me...but in all honesty...an OC'd I7....OC'd 480 SLi arrangement...I'd drop a 1 kW PSU in their....

fishingfanatic November 12, 2010 07:49 PM

Power Supplies
 
It seems to me that somewhere I read a 1000w should be used when running 480s in sli. Newer psus are more energy efficient as well.

I had a pair of 5970s in xfire, with multiple fans and HDDs and my corsair 1000w never even got warm. A good psu will handle a lot of power draw, but I think a bit extra leeway is better for your system and the psu.

Remember that this is one component that should never be skimped on, and a bigger psu will handle future upgrades easily. Just mho.
:biggrin::thumb:

rjbarker November 14, 2010 02:23 AM

Quote:

Remember that this is one component that should never be skimped on,
Especially when your OC'ing some high end HW !!

Soultribunal November 14, 2010 09:13 PM

Quote:

Originally Posted by rjbarker (Post 449599)
I know many may disagree....if Z_ro was here he'd blast me...but in all honesty...an OC'd I7....OC'd 480 SLi arrangement...I'd drop a 1 kW PSU in their....

True, and still some PSU's hit their Highest Efficency numbers at 50-70% Draw (My Silverstone ones do at least, 88% I think around there).

And it never hurts to go overkill on a PSU. I'll take running something at half its rated capacity over something at 90% anyday.

That being said get a newer platform for a PSU, the NZXT Hale90's are damn good Superflower units that would not disappoint.

ST

souper November 20, 2010 08:49 AM

Any good 750+ watt good quality psu should run those. Get a corsair.


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