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What power supply for 2xGTX 580 and SB 2600? - Page 2

post #11 of 16
You can make it work with a quality 750w if you already have that. An 850w is the preferred PSU for that setup, and a 1K psu if you plan on expanding the system like others have said (with watercooling, lots of peripherals, etc).
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post #12 of 16
Quote:
Originally Posted by DeltaUpsilon View Post
You can make it work with a quality 750w if you already have that. An 850w is the preferred PSU for that setup, and a 1K psu if you plan on expanding the system like others have said (with watercooling, lots of peripherals, etc).
I always go big and be prepared, spending an extra $50 now will prevent you from spending an extra $200 later
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post #13 of 16
Quote:
Originally Posted by DeltaUpsilon View Post
You can make it work with a quality 750w if you already have that. An 850w is the preferred PSU for that setup, and a 1K psu if you plan on expanding the system like others have said (with watercooling, lots of peripherals, etc).
Quote:
Originally Posted by thealex132 View Post
Make sure you get the 2600K, the non-K edition CPU's have extremely limited overclocking.

An AX750 will do you nicely, if you plan on using the PSU for a long time and running a whole bunch of peripherals/more than 1 loop (not advised anyway, as testing has proven little to no gains over 1 loop) I would get the AX850.



Between the Corsair AX850 and SeaSonic X850, the AX850 is better ONLY due to 7 year warranty being longer. Internally they are EXACTLY the same, as Corsair rebrands the SeaSonic units for most of their PSUs.



AX750 can handle that, AX850 if you want to use this for more than 5 years and want that extra ~100w buffer.
People don't read =_=
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post #14 of 16
Ok, so I am fairly set on upgrading my 560's to 2x GTX 580 Lightnings. The consensus here is that my Corsair HX750 should be enough? According to Guru3d the Lightnings draw 232W total under load so:

GTX 580 Lightning draw (load) - 232 x 2 = 464W
Total system draw minus gpu (load) - 250W
------
Total - 714W

Does that look right? I know its on the edge but I'm thinking my PSU can handle that (not like its going to be under full load constantly).....
post #15 of 16
Quote:
Originally Posted by Majin SSJ Eric View Post
Ok, so I am fairly set on upgrading my 560's to 2x GTX 580 Lightnings. The consensus here is that my Corsair HX750 should be enough? According to Guru3d the Lightnings draw 232W total under load so:

GTX 580 Lightning draw (load) - 232 x 2 = 464W
Total system draw minus gpu (load) - 250W
------
Total - 714W

Does that look right? I know its on the edge but I'm thinking my PSU can handle that (not like its going to be under full load constantly).....
It will handle it but SLI does not mean x2 power draw.
You should be going close to ~725w on 100% load (Prime95 + Furmark) Everyday gaming will be fine at closer to 650w
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post #16 of 16
I just meant worst-case scenario...
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