PSU for GeForce 8800 GTX

I bought my wife a secondhand GeForce 8800 GTX graphics card and plum forgot to check the power requirements. While she has a 500W PSU it only has one 6 pin PCI-e connector and I don't believe it provides the amps necessary for this card.

It looks like the card originated from a stock PC at one time as there are no manufacturer labels or logos anywhere on it. As far as the appearance and the stats on purchase, it seems to be:
http://www.newegg.com/Product/Product.aspx?Item=N82E16814130072

Here is the link of the actual eBay auction it came from:
http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=130610203267&ssPageName=ADME:L:OC:US:1123

I'm having a lot of trouble selecting a PSU that would power it. I believe the card needs 28 amps on a 12V rail, but then perhaps I can use two rails with 12amps each? Maybe I can get by using a cable to convert a standard HDD connector to a 6-pin PCI-e one? Perhaps this PSU would work(?):
http://www.newegg.com/Product/Produ...IsFeedbackTab=true&Keywords=(keywords)&Page=1

Well anyway, I just don't know enough about them!

Can anyone suggest a PSU or other solution that would work, and hopefully educate me a little on why it would work?

Thank you, and Merry Christmas!

PS The rest of her system is very light weight - no other interesting hardware in any slots, has a fairly low watt CPU, and will be installing a SSD HDD tomorrow.

 

"System Requirements
Minimum of a 450 Watt power supply.
(Minimum recommended power supply with +12 Volt current rating of 28 Amps.)

Power Connector
2 x 6 Pin"

http://www.newegg.com/Product/Product.aspx?Item=N82E16814130072

I would upgrade her PSU to a newer one with a bit more power. Most of the newer ones have 2 6 pin connectors as far as I know.

A quick look on the 'Egg shows a few that would work. The 8800 is still a nice card, especially if you can pick up a used one in good shape.



http://www.newegg.com/Product/Product.aspx?Item=N82E16817371044

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139020

My GPU came with a 6 pin adapter that uses 2 of the regular molex plugs. That might be a cheap fix, but I personally like to have a bit more over the power recommended. Someone more up on amps and such can give you a better recommendation on using adapters.

This is similar to the adapter I have: http://www.newegg.com/Product/Product.aspx?Item=N82E16812887001

If you want to go that route, will send you the adapter I have. Will send it to you free assuming you are in the US. Just give whatever the postage is to your favorite charity.

 

You didn't mention what your current PSU is? Anyways, each 6-pin connection will suck 75W each and the card will also suck 75W from the mobo, that's already half your power.

I never had an 8800GTX but I did have a pair of 9800GT's running on an Antec Earthwatss 500W for a long time. An adapter from the 4-pin molex connector to a 6-pin sounds good only if you have a quality PSU and seeing this is an aging machine, PSU's degrade something like %10 a year if they're good to start with!

 

Sorry for the slow update guys, Christmas was manic as I'm sure it was for you all!

Thank you Fred_G for the advice. I decided to wait until after Christmas for prices to drop, which they did! Based on what you said both these two seemed like good options for $60 (after mir etc):
http://www.newegg.com/Product/Product.aspx?Item=N82E16817171052
http://www.newegg.com/Product/Product.aspx?Item=17-139-020

However I think I might be able to save even more money as I now think the adapter option augie mentioned might work after all.

Yes, I sure did neglect to post the current PSU, I'm sorry! I didn't bother because I thought she still had the original stock PSU from yeaaars ago, but I had forgotten I'd replaced it since then (still a few years ago mind you).

She currently has this one:
COOLMAX V-600 600W ATX12V

The stats on it are:
600W
+3.3V@24A, +5V@24A, +12V1@18A, +12V2@18A, +12V3@15A, -12V@0.5A, +5VSB@2.5A
1 x Main connector (20+4Pin)
1 x 12V(P4)
6 x Peripheral
1 x SATA
1 x Floppy
1 x PCI-E 6 Pin

I may not be understanding this right, so please bear with me... Am I right in thinking that the PCI-E 6 pin connector and the regular molexs (molexes? molexii?) are on the 12V rails? If so would I then be able to use the PCI-E 6 pin connector and the adapter augiedoggie mentions to supply a combined 36A (or perhaps 33A if the PCI-E is on the 15A rail) and exceed the 28A the card wants to pull? If all of that is correct, then how do I determine I have the adapter on a different rail from the PCI-E 6pin connector so that they aren't both sharing 18A?

The rest of her computer is extremely basic. It came with a PSU around 300W, maybe even 250W and I've not added much at all. The only increases to her load beside the GPU are a 32GB SSD with its vast 5.5W pull, another GB or two of RAM, and a new processor which added about 10W.

Also if it's useful, here is the link to her computer as it originally came:
http://www.newegg.com/Product/Product.aspx?Item=N82E16883107400