Is this PSU enough for the BFG 7800GS?

[Myth]

So after 4 years with my trusty 9700pro I finally have found a card deemed worthy of an upgrade for my aging agp system(which i am very happy with by the way). I have absolutely no interest in pci-e and any of that other "hoopla" at the moment but that may change next year...Anyway back to the purpose of me making this thread. I am currently on a 3 year old 350watt power supply and immediately realized this would not be sufficient for the 7800gs (The overclocked BFG one in case you were wondering) so the first thing I did was go on tigerdirect and get a better power supply and I ended up getting this one http://www.aselabs.com/articles.php?id=85 (ThermalTake Silent PurePower 480W PSU ). I was soo excited about upgrading that i rushed to just grab the first psu that i thought was good, but I later found out that its not really about how many watts your psu has but more about how many a's your 12v rail has... Unfortunately I didnt realize this sooner because I had already placed the order without researching this issue/requirement first..Now my problem is that on the BFG site,they recommend A "minimum 400W system power supply (with 12V current rating of 20A or more)" My problem is that I have now found out that my PurePower 480W psu only has a 12v Rating of 18A and thus i am now worried that I just purchased a new psu like a fool and it will probably be useless in powering my 7800gs. Any advice? Can the 7800gs manage on a 18A 12v rail? Also can i get a refund from tigerdirect or at least an exchange or something if It doesnt work with my card? ( I bought both the psu and card from tigerdirect,simultaniously)Any advice,help or tip would be greatly appreciated, As i have always been an ATI guy (yes i know, ive been part of the dark side for way too long...) and im not really too familiar with nvidia

[Oklahoma Wolf]

In addition to the 7800, what all will you be running from it?

[Myth]

In addition to the 7800, what all will you be running from it?


2.4ghz p4 533fsb , 1 dvd drive, 1 dvd burner, 1 80 gig hd,1 gig of ram (one 2700 & one 3200 stick)

[Oklahoma Wolf]

Should be able to power it without overclocking at least... might be worth a try.

[jadakada]

I have almost the exact same specs and am looking at buying that exact same card, you can be my guinny pig because I just bought a

http://www.newegg.com/Product/Product.asp?Item=N82E16817103928

which only has 17 amps on the 12 V rail. But it has 2 of them so I dont know if that does anything or what. Hopefully yours works out so I can buy mine =p.

[Myth]

I have almost the exact same specs and am looking at buying that exact same card, you can be my guinny pig because I just bought a

http://www.newegg.com/Product/Product.asp?Item=N82E16817103928

which only has 17 amps on the 12 V rail. But it has 2 of them so I dont know if that does anything or what. Hopefully yours works out so I can buy mine =p.


Gee thanks for making me your guinny pig and being of absolutely no help :rolleyes: ...Even I know if you have 2 12v rails and one is 17A's then most likely the other would be sufficient...

[OkydOky]

I am Currently Running my:
AMD Athlon 64 3200 (Socket 754)
1 GB DDR RAM
2 Hard Drives
1 DVD Drive
Geforce 6800 GS

Off of a 350W powersupply.
It's a FSP350-60PN Aurora To me more Exact.
28A 30A 16A, for 3.3V 5V 12V respectively.


Not sure how much more power Hungry the 7800GS is though..

[Myth]

I am Currently Running my:
AMD Athlon 64 3200 (Socket 754)
1 GB DDR RAM
2 Hard Drives
1 DVD Drive
Geforce 6800 GS

Off of a 350W powersupply.
It's a FSP350-60PN Aurora To me more Exact.
28A 30A 16A, for 3.3V 5V 12V respectively.


Not sure how much more power Hungry the 7800GS is though..


I see,well surely if your psu has 16A for the 12v rail on a 6800gs that would mean that a 7800gs should be ok on an 18A 12v rail, but then again as you stated im not really too sure either as for how much more power hungry the 7800gs is...but nevertheless thanks for the input.