Keep old PSU or do I need new one for 7900gt

[alekstasy]

Hi, I've been putting off buy a new graphics card until the 7900's come out and theyre out, so before placing an order for a 7900gt I want to know whether i need to buy a new psu for it, I'm a little tight for cash so im hoping that i could use my old one for the time being. My PSU is one that came with my thermaltake case which is 400w and its +12v rating is 17A there is a pic below, is this enough, there is no pci-e connector so i guess i would use the pci-e to 2 molex connector thingy. My system specs are:

Amd Athlon 64 4000+(stock speeds, no intention of OC'ing)
1gb(2x512) kingstom RAM
ASUS a8n-SLI Deluxe Motherboard
1x LG DVD-RW
Seagate 200GB SATA HDD
Gigabyte 6600gt
Compro DTV tuner
couple of case fans

Thank you in advance your help is apreciated.

 

[Bbq]

New one. 17a will not be enough.

 

[alekstasy]

i was hoping i could get away with it, so theres no chance at all?

 

[Liquid_Cooled]

theirs a chance.

just get the 7900 GT. run a few benchmarks and see if the performance is where it should be. also, test out the voltages with a multimeter.

 

[alekstasy]

So could i damage the card by using it on my current PSU are there any risks?