Enough Current rating?

MtnDewOwns

Junior Member
Jan 4, 2011
2
0
0
So for the past month I have been upgrading my pc for gaming.

I have a Antec Basiq BP500U 500W Continuous Power ATX12V Version 2.01 Active PFC Power Supply and I was wondering if it meets this graphics card current rating.
Minimum 450W or greater system power supply (with a minimum 12V current rating of 38A)
I don't know if you need anymore of my rig's information to figure it out.
 

fffblackmage

Platinum Member
Dec 28, 2007
2,548
0
76
Having your rig's specs would help a lot, especially what graphics card in particular.

I'm guessing it's fine. My HD5870 required that I should have a 500W PSU with a minimum of 40A on the 12V output, but my PSU only outputs 38A @12V max.
 

Ataristic

Junior Member
Jan 5, 2011
18
0
0
Amp ratings on GPU are always going to be over-estimated by at least 5 amps, this is done on purpose so as to not have to deal with people damaging cards due to too little power. A cheap way to find out if your GPU is actually pulling those amps is to do an actual amp probe test. Get a cheap amp meter with a probe , i use one that was less than $10 at harbor freight

http://www.harborfreight.com/digital-clamp-meter-96308.html

Open your case and run a benchmark like furmark or Msi Kombustor, while the test is running, use the multimeter amp clamp on one of the wires going into the GPU and swithc to amps. If the ampearage at full tilt is less than what is specified on the PSU, then you should be fine.
 
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