Do I have enough power?

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Homer74

n00b
Joined
Dec 1, 2008
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Components


Corsair HX Series CMPSU-620HX 620W Power Supply
GIGABYTE GA-EP45-UD3R LGA 775 Intel P45 ATX Intel Motherboard - Retail
Intel Core 2 Quad Q6600
G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066
Western Digital Caviar SE16 WD6400AAKS 640Gb
SAMSUNG 22X DVD±R DVD Burner Model SH-S223Q
EVGA GeForce GTX 260 Video Card

The specs on the GTX 260 says 500W. With everything else do I have enough power?
 
Homer74 said:
Components


Corsair HX Series CMPSU-620HX 620W Power Supply
GIGABYTE GA-EP45-UD3R LGA 775 Intel P45 ATX Intel Motherboard - Retail
Intel Core 2 Quad Q6600
G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066
Western Digital Caviar SE16 WD6400AAKS 640Gb
SAMSUNG 22X DVD±R DVD Burner Model SH-S223Q
EVGA GeForce GTX 260 Video Card

The specs on the GTX 260 says 500W. With everything else do I have enough power?
Click to expand...
500 watts does not mean just for the card if thats what you are thinking. it means for the entire system. a gtx260 actually only uses about 150 watts under load. your entire system would pull around 300watts under full load so yes your power supply is more than enough.
 
Plenty of power, you could even add a second GTX 260 without having to worry :)
 
The PCI-E 2.0 slot on the motherboard can deliver 150W to the video card. Each 6-pin PCI-E power connector can deliver 75W to the card. The GTX260 requires two 6-pin PCI-E power connectors. Therefore, the most a GTX260 can possibly pull under any circumstances is 300W.

It actually pulls less than half that; SPCR measured a standard GTX260 as pulling 122W under load (this is the card only, not the entire system):

http://www.silentpcreview.com/article870-page6.html

You could comfortably do GTX260 in SLI with that PSU if your motherboard supported SLI (but it doesn't). You could run four GTX260 cards if that were somehow possible.

For those curious about how many amps the GTX260 pulls, Watts = volts x amps, and volts = 12 since we're on the 12v rail, so amps = watts / 12. Therefore, the GTX260 pulls just 10.2 amps.
 
No, you need at least a 3600W power supply for that system, per HardOCP forum protocol. ;) If you can get your local legislators to pass it, a nuclear power plant in your backyard might be a good way to go, too. :eek:
 
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