i just switch out my old hot , loud and crappy ATI 5770 that come with my xp 8100 . best upgrade ever . it be hard to get use to how quiet the Gpu be . -lrb- I be use to the loud fan on the other gpu -rrb- . run everything on high\/ultra high . i get 60fp use frap on skyrim . very satisfied . would SLI if my motherboard support it . i use the cooler master gx 650w for the psu upgrade as well .