What graffics card should i use in an hp elite m9100t?

Question

i changed the power supply to 450 but i dont no wut will fit.......i have a geforce 8400gt now

Answer 1

450 is weak.  You might be able to use a 9600GT

Answer 2

this is me the one that asked that question i meant by that it might not fit in my case and i was asken do u think an 8800 gt will?

Answer 3

450W is the minimum for most 8800GTs. You should get an MSI NX8800GT since they're insane cards. If you want anything bigger like a 9800GTX/GX2 or a GTX 280 you'll need at least 550W.