Solved Is 30A on 12v rail enough for GIGABYTE 7870? Tags: Graphics Cards Antec Gigabyte Graphics Last response: December 25, 2012 1:17 AM in Graphics & Displays Share timil December 25, 2012 12:43:49 AM I'm pretty sure it's enough for refrerence 7870 but will 30a on 12v be enough for the gigabyte version of the 7870. If you're wondering the psu in question is an antec vp550p More about : 30a 12v rail gigabyte 7870 Best solution anort3 a c 269 U Graphics card December 25, 2012 12:57:57 AM The Antec VP 550 actually has multiple 12v rails capable of supplying 540 watts on the 12v rail alone making for 45 combined amps on the 12v rail. It's a very good power supply and would be fine even for a GTX 680 or HD 7970. Share timil December 25, 2012 1:17:21 AM Best answer selected by timil. m 0 l Can't find your answer ? Ask ! Publish 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 !