It would be more a choice of budget for the GPU, rather then the power supply. I'd have no problem running a 9800GT on it. Depending on the system even a HD4850 would be workable. Other choices more conservative would be a 9600GT or a HD4830.
thanx for the replies now i m not sure if i want to ge a 8800gt, 9600gt or 9800gt. what would be the price and performance diff? ah and there are xfx 9600gt and xfx9600gt zalman fans, what would be the diff betweeen these 2? thanx
So depending on the rest of the system (CPU, number of HDDs, fans even), I really wouldn't get the 9800gt cause that might be a bit too much for the PSU. 9600gt would be better as it'll leave more breathing room for the power supply.
add something like 10-15W for the HDD, couple of watts for the fan and it adds up around 80 watts.
I'm not 100% sure which voltages the mobo uses for rams and other chipset stuff, but I'm thinking it would be the 3,3 and 5V rails... HDD uses also little from 5V so not all of its is from the 12V rail...
anyhow, with 8800GT that totals to 160W which should still be fine, your psu is propably few years old so it might have degraded a bit from the initial values. With 9800gt total usage would be close to 200W and imho that's too much for the psu to handle safely...
You could of course get a new 450-500W PSU, new ones have much stronger 12V rails compared to older PSUs so they can run much more powerfull hardware with the same total wattage rating (this pretty much explains DasKrabbe & all.'s experiences)
not too hot or too loud, just that from riva tuner it shows the fan running at 35%(not sure if its true). n idle temp is 44. when playing games, its 50. just thinking that if i could increase it to like 50% and what would be the diff.
read from certain forums, that the zalman vf830 fan speed is not adjustable. so just trying my luck here.