can i run sapphire hd 7770 gd5 in psu 450w 12v rail 19 amps . Tags: HD Power Supplies Hard Drives Sapphire Graphics Last response: July 15, 2014 9:31 AM in Graphics & Displays Share vikas chouhan July 5, 2014 12:18:08 AM system spacs i3 4130 gigabyte h81m s1 4gb ram 1tb hdd 7200rpm optical drive sapphire hd 7770 1gb gddr5 450w 12v rail 19amps psu More about : run sapphire 7770 gd5 psu 450w 12v rail amps Reply to vikas chouhan SR-71 Blackbird a c 1992 ) Power supply July 5, 2014 7:10:13 PM A Radeon HD 7770 needs 19 amps on the 12v rail and a 450-500w POWER SUPPLY. It's a low power draw card you should be fine. Reply to SR-71 Blackbird m 0 l mario7770 July 15, 2014 9:31:42 AM yes you can..Even I'm using an HD 7770 Sapphire GHz edition card without any issues on my 400W PSU which has 15A on +12V rail. Reply to mario7770 m 0 l Ask the community Post an answer Related resources SolvedRadeon hd3850 work with psu 450W with 10amps on 12v+ rail? Forum SolvedWill HD7750 run on my generic (techwill brand) 500w PSU w/ 12amps on 12v rail? Forum SolvedCould this system run on a *500W PSU* [375W, 31 Amps 12V, Dual rail] Forum Solved12V rail of 18A is enough to run shapphire hd 7770 1gb? Forum HD 5770 & Zebronics gold psu (450W, 12V single rail) Forum SolvedCan ATI/AMD Radeon HD 7770 1 GB DDR5 run with a 450W PSU Forum SolvedIs my psu is able to run sapphire hd 7770 1gb ? Forum Solvedi have an beetel(Indian) 450 watt psu a year old and im purchasing a sapphire hd 7770 1 gddr5 gpu. so will i able to run it or Forum Is my psu is able to run sapphire hd 7770 1gb and my psu has no 6pin connector Forum Is my psu is able to run sapphire hd 7770 1gb my psu has no 6 pin connector Forum More resources Read discussions in other Graphics & Displays categories Ati GPUs Graphics Cards Gtx HD Monitors SLI Crossfire Tuner Cards Radeon Video Diamond Multimedia Matrox Nvidia Palit PowerColor Asus Games !