hello i have a 400 watt psu with 16 amps on the +12 volt rail. can i install a hd 5770? The cpu installed is an AMD x3 445 undervolted at 1.2 volt but not underclocked. I've one hdd and one optical drive
Ok i used te calculator. It say i need 266 watt ad 90% load and 100% peak load i need 290 watt Ok i've 400 watt but i have a low rated 12 volt rail so i don't know if i can run the system and the corsair calculator says the minium is vx 450
Corsair said that because lowest PS they have is 400 maybe. I think you can give it a try, what happen is when it needs more power than PS can supply and it would burn the PS. other point is that card would provide a faster performance. if you like to make sure, you can get one PS with higher voltage, among many PS, I use Corsair TX650W for 2 PNY 9800GTX+ and 4 hard drive, one DVD optical drive, intel I7 930, and 3 piece of ram. that was what I know.
i think i don't buy a hd 5770 but wait for hd 6670 wich has lower power consumption. Maybe a little bit lower performance but i don't need to play every game maxed I only want to play the newest games on low