- Oct 19, 2010
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- 18,510
Would it be possible to run SLI GTX 260s on an 800 watt power supply? I currently have one GTX 260 (192 stream cores) and want to upgrade. So, I thought rather than spending $300+ for a 470 or 480, I could get about the same performance through a second GTX 260 for $150. I don't know if my PSU can handle it though.
The PSU is SLI certified, can provide 800 watts of continuous power, and is 80 plus certified.
0.8 * 800 = 640.
I'm not sure it will handle everything on my PC. I've read SLI 260s can use up to 450 watts of power alone. My i7 920 can take 130 at even stock clocks, so that's 580 without counting anything else. A recommended wattage calculator revealed that the recommended power supply for my system at 95% load is 837 watts.
I don't know how much power components other than the processor and graphics card use, so I thought I'd just list them all.
Everything in my system currently:
- i7 920 with stock heatsink (stock 2.66ghz atm, but I may overclock to 3.0ghz later)
- Superclocked (factory overclocked) GTX 260 (626mhz core/ 1350 shader/ 1053 memory)
- (2) SATA HDDs (1TB Caviar black and 500GB Seagate Baracuda)
- IDE Dvd Burner
- EVGA X58 Mobo
- Antec 900 case - (3) 120mm fans, (1) 200mm fan + little blue LEDs
- 1333 6GB (3 x 2GB) Corsair DDR3 ram
- 2.1 Speakers
USB - external hard drive, G15 Keyboard (backlit with small screen), G500 mouse, headphones, printer, PS3 controller charging, iPod charging, phone charging, flash drive
Link to my PSU: (maybe that will help)
http://www.newegg.com/Product/Product.aspx?Item=N82E16817702007
The PSU is SLI certified, can provide 800 watts of continuous power, and is 80 plus certified.
0.8 * 800 = 640.
I'm not sure it will handle everything on my PC. I've read SLI 260s can use up to 450 watts of power alone. My i7 920 can take 130 at even stock clocks, so that's 580 without counting anything else. A recommended wattage calculator revealed that the recommended power supply for my system at 95% load is 837 watts.
I don't know how much power components other than the processor and graphics card use, so I thought I'd just list them all.
Everything in my system currently:
- i7 920 with stock heatsink (stock 2.66ghz atm, but I may overclock to 3.0ghz later)
- Superclocked (factory overclocked) GTX 260 (626mhz core/ 1350 shader/ 1053 memory)
- (2) SATA HDDs (1TB Caviar black and 500GB Seagate Baracuda)
- IDE Dvd Burner
- EVGA X58 Mobo
- Antec 900 case - (3) 120mm fans, (1) 200mm fan + little blue LEDs
- 1333 6GB (3 x 2GB) Corsair DDR3 ram
- 2.1 Speakers
USB - external hard drive, G15 Keyboard (backlit with small screen), G500 mouse, headphones, printer, PS3 controller charging, iPod charging, phone charging, flash drive
Link to my PSU: (maybe that will help)
http://www.newegg.com/Product/Product.aspx?Item=N82E16817702007
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