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600W enough for 460 SLI & i5 2500k? - Page 3

post #21 of 32
Quote:
Originally Posted by pursuinginsanity View Post
2 doodoo 768s @ stock.....
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post #22 of 32
Thread Starter 
Wow, I was away for just 30 mins and there's already been 3 pages or response. Gotta love OCN.

Well, I guess I should clarify by providing more details as well as my opinions:

I mainly game, sometimes bench (3dmark, game benchmarks), nothing really intense.
And hell I would not run prime95 with Furmark at the same time nor any of them for 24hrs a day.
Also, I thought my PSU (silent pro, not the extreme) was a good one (not top notch, but gotta be above average). And the 460s I will be using are the 768MB ones, not 1GB. Is the 768MB supposed to consume less power than 1GB?
Finally, according to those reviews out there, sandy bridge should consume less power than i7 (which is normally used in 460s SLI reviews). Should we consider on that, too?
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post #23 of 32
use it until it blows up
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post #24 of 32
Quote:
Originally Posted by goldbranch View Post
Wow, I was away for just 30 mins and there's already been 3 pages or response. Gotta love OCN.

Well, I guess I should clarify by providing more details as well as my opinions:

I mainly game, sometimes bench (3dmark, game benchmarks), nothing really intense.
And hell I would not run prime95 with Furmark at the same time nor any of them for 24hrs a day.
Also, I thought my PSU (silent pro, not the extreme) was a good one (not top notch, but gotta be above average). And the 460s I will be using are the 768MB ones, not 1GB. Is the 768MB supposed to consume less power than 1GB?
Finally, according to those reviews out there, sandy bridge should consume less power than i7 (which is normally used in 460s SLI reviews). Should we consider on that, too?
The Silent Pro M you have is not a bad unit. The issue is not how good or bad it is, simply its rated power output, which is 480W at 12V (not 600W). The unit is overrated by modern standards, in that the 600W rating relies too much on the +3.3V and +5V rails, which aren't used as heavily today as they used to be a decade ago. While the PSU itself isn't even that old, it's a common strategy used by PSU resellers like Cooler Master to... well, make the deal sound better than it really is.
Like I mentioned earlier, I think you've got nothing to worry about. A normal gaming load for a pair of 768MB GTX 460s is about 200-220W at stock speeds. Probably wouldn't go far beyond 250-260W overclocked, unless you have something crazy going on.
post #25 of 32
Quote:
Originally Posted by taystew View Post
use it until it blows up
Go home.
post #26 of 32
Quote:
Originally Posted by taystew View Post
2 doodoo 768s @ stock.....
Dude, my 470's OC'd to 800mhz AND an overclocked 8800GT doesn't even pull 600w at the wall.

Like everyone said, he's looking at 450w at the wall, worst case scenario.
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post #27 of 32
a good quality (corsair, seasonic, silverstone,) yes, a lower quality one prob not, u would want a 650 or better
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post #28 of 32
No way u need a 700w, something like the corsair hx650 should do absolutely fine with no probs at all.
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post #29 of 32
I'd say ok if you dont OC, but you are planning to OC, so I'd say

MOAR POWAA!
    
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post #30 of 32
Quote:
Originally Posted by cee View Post
I'd say ok if you dont OC, but you are planning to OC, so I'd say

MOAR POWAA!
overclocking doesn't miraculously make GTX 460s suck down an additional 200w of power.

My Q9550 @ 4Ghz running 8 gigs of ram, 4 hdds, and a 10-15% overclocked 470 never pulled down more than like 420w from the wall loading up the GPU AND the CPU w/ Furmark and P95.

420W from the wall on a Seasonic X650 is like 380W on the PSU itself.

Would have ran 470s in SLI on it without even thinking if i didnt feel like selling stuff off and buying hardware that more suits my current needs.

If the 600w PSU in question is at least "decent" a 2500k & 460s (all overclocked) should be no issue at all.
    
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