enough to SLI GTX 480s

[Your_friendly_gamer]

Hey guys, I have i7 2600k clocked at 4.5ghz at 1.36v. Is a AX850 good enough to SLI GTX 480's?

[boggtrotter59]

Should be plenty of power.

[Bond007]

I say its fine as well.

[yycraven]

Yes you have lots there, should be no issues.

[Razamatraz]

the AX 850 can do a fair bit above it's limit but you are bumping up close to max there especially with the OC 2600K. Are the 480s overclocked? Do you use them to crunch/Fold? What else is in the machine?

If they are stock 480s I'd put your max consumption (full load) with a couple drives at just under 800 watts...not the most efficient but well within the AX 850's limits.

[enaberif]

Originally Posted by Razamatraz

the AX 850 can do a fair bit above it's limit but you are bumping up close to max there especially with the OC 2600K. Are the 480s overclocked? Do you use them to crunch/Fold? What else is in the machine?

If they are stock 480s I'd put your max consumption (full load) with a couple drives at just under 800 watts...not the most efficient but well within the AX 850's limits.

Sandybridge Processors use almost nothing for power compared to older Core 2s. With a 850 you'll have no issues whatsoever on that system even if the processor is overclocked.

[Arinoth]

The 1366 socket uses more power then SB when overclocked, though so does the 480 compared to the 580. From this and my own personal experience I would highly recommend going up to a 1kW power supply if you plan to overclock everything.

At 1.375V vCore + 580s rather heavily overclocked themselves they can pull more then 950W from the wall.

[enaberif]

Originally Posted by Arinoth

The 1366 socket uses more power then SB when overclocked, though so does the 480 compared to the 580. From this and my own personal experience I would highly recommend going up to a 1kW power supply if you plan to overclock everything.

At 1.375V vCore + 580s rather heavily overclocked themselves they can pull more then 950W from the wall.

Uh.. he's running a i7 2600k silly boy.

[G777]

To give you some idea; my 850W Seasonic powers 2x480's, 2600k@4.7 (1.45v), 2 pumps, 10 or so fans, and some lighting.

While running f@h on the gpus and -smp 7 on the cpu (90%)...draw is right around 700W.

[Razamatraz]

Yah, it probably would not cross 850 Watts, I hate running up to the edge of my PSU ratings though. Corsair says 950+ for that configuration.