PDA

View Full Version : GTX 295 SLI w/ SG850?

tonyluu
02-28-2009, 11:40 PM
Since the PSU has 25A for each video card to hog all by itself on the 12v3 & 12v4 rails do you think this PSU could handle that configuration?

If not can the Enermax Revolution 85+ 850w? Since it has 30A for the graphics cards
davidhammock200
03-01-2009, 12:10 AM
For 1X 295 295SLI, yes the Antec SG850 is fine & so is the Enermax.

For 2X 295 Quad-SLI, NO!
You need something like the Corsair HX1000W +12V@80A@50C or the TT 1200W (W0133) +12V@99A@50C.

Which are you building?
tonyluu
03-01-2009, 12:35 AM
None, this was just one of those hrm.. I wonder questions

Why don't you think it would be able to handle it? (on LGA 775) i7 diff story
SG850 can handle 2X 4870 X2
davidhammock200
03-01-2009, 04:57 AM
None, this was just one of those hrm.. I wonder questions

Why don't you think it would be able to handle it? (on LGA 775) i7 diff story
SG850 can handle 2X 4870 X2For Quads look to the Corsair HX1000W +12V@80A.

The SG850 has only a combined max of +12V@64A, enough for any 2-processor CF or SLI, but not Quads.
Oklahoma Wolf
03-01-2009, 07:09 AM
The SG-850 should be just fine.
davidhammock200
03-01-2009, 12:23 PM
The SG-850 should be just fine.For Quad CF with 2X 4870 2GB X2's? The SG-850 has only a combined max of +12V@64A (768W),
wouldn't you say that is pushing it & the OP probably wants to OC?

You have tested the SG850 & I have never even seen one, but.... considering the AnandTech articles...
Oklahoma Wolf
03-01-2009, 12:37 PM
The Anandtech articles are power consumption at the wall for the whole system. Considering the PC P&C 1200 isn't the most efficient thing out there to begin with and they got 605W with two 295's, total system draw is within the SG-850's capabilities.

What I'd really like to do, since I now have the board for it, is run a couple 4870 X2's on the SG-850 and maybe make an article of my own out of it. But, those things cost money.
davidhammock200
03-02-2009, 01:59 PM
The Anandtech articles are power consumption at the wall for the whole system. Considering the PC P&C 1200 isn't the most efficient thing out there to begin with and they got 605W with two 295's, total system draw is within the SG-850's capabilities.

What I'd really like to do, since I now have the board for it, is run a couple 4870 X2's on the SG-850 and maybe make an article of my own out of it. But, those things cost money.Yea, getting PSU's & RAM is easy, mobos & especially high-end GPU's... :(