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GPU- what is (42A on the + 12V rail ) mean ?
42 amp's on the plus 12 volt rail - is it a BIOS change to the pic-e - or PSU in BIOS
650 with 80 earth watts - looking the 480GTX - gigabyte mother broad H55 chip set - PSU antec - 2.0 PCIE
P.S. my first build - want to buy best - there going to 2.1 - live and learn
windows 7 64 bit
1 rail - 1 -6 plug / 6+2 plug / 3 12V plugs
total 405W add up so i say 505W
3 Answers
- Sasha WhitefurLv 71 decade agoFavorite Answer
P=E*I I=42A, E=12v. P=12*42, P=505W, if the video card requires more than 505W, anything less will not work.
- 1 decade ago
that basically means that there is 42amps on the positive 12 volt rail. Depending on the number of rails, that may or may not be enough. The 480 GTX is a beast of a video card. You should add up everything you plan on powering up and see if 650 watts is enough.
I am running the following:
Intel Q6550 quad core
ATI 4870 x2 (two gpus)
2 1T hard drives
1 DVDRW
Watercooler
and I am using a 1kwatt Cosair. I have 3 120mm fans to keep the heat out of the case.
Source(s): I built my own machine - George HLv 71 decade ago
Its saying you need at least 42 Amps on the +12 rail to run the video card. You need a 600W PSU or better with a 6 pin and 8 pin PCIe connector...like...http://www.newegg.com/Product/Product.aspx?Item=N8...
this being the minimum...personally I would go for this...http://www.newegg.com/Product/Product.aspx?Item=N8...
