PSU question

[BRAVO51]

can a 400w psu run a GTX460? The psu has enough amps on the 12v rail to handle to the 460 but does the wattage really matter?

 

[mad pistol]

What's the PSU in question, and what are the rest of your specs?

 

[Silent_Predator]

Depends on the card itself -- as you can see, the power requirements are varied.

GTX 460: below, 2 cards, same GPU... very different power solutions.

System Requirements Minimum 450W or greater system power supply(with a minimum 12V current rating of 24A)

System Requirements 700 Watt or greater power supply recommended

 

[BRAVO51]

intel q8300 @ 2.5Ghz
8gb ddr2 800
asus p5ql-vm EPU
PNY GTS 250
seagate barracuda 1TB
Delta electronics 400w psu
win7 home premium x64

 

[mad pistol]

intel q8300 @ 2.5Ghz
8gb ddr2 800
asus p5ql-vm EPU
PNY GTS 250
seagate barracuda 1TB
Delta electronics 400w psu
win7 home premium x64

http://www.hwcompare.com/8280/geforce-gts-250-1gb-vs-geforce-gtx-460-1gb/

According to this, your system will be using approximately 15 extra watts on a GTX 460 vs. your current GTS 250. If you're not having any problems right now, it's a pretty safe bet that a GTX 460 will be fine on that system.

I say go for it.

 

[reflex99]

Should be fine.

If we could get model numbers that would be great.

Delta usually makes stuff that works.....

 

[BRAVO51]

Thxs for helping

 

[idk_lobsters]

This will prob help best, I used it to figure what PSU I needed:
http://extreme.outervision.com/psucalculatorlite.jsp

Also Amps are related to Watts in the following physics function:
W = V x A (watts = volts x amps)

aka a 12V rail at 24 amps is 288 watts of power, but the GPU will prob never take that much power to work, even at 100% workload