Help on reading PSU specs..2 rails or 1? Tags: Power Supplies Graphics Cards Components Last response: May 2, 2012 10:21 PM in Components Share rbennett1701 May 2, 2012 9:50:18 PM I have a FSP300-60THA PSU, and need to determine what kind of video card I can run on it, but I'm not sure how to read the following info: +3.3V@6/20A, +5V@20/10.8A, +12V1@8A, +12V2@14A, -12V@0.8A Does that mean I have TWO 12volts? one at 8amps and one at 14? The reason I ask is because I am wary of dropping a discrete card (Radeon 6570) into a single rail PSU. Thanks! More about : reading psu specs rails delluser1 a c 243 ) Power supply a b U Graphics card May 2, 2012 10:21:45 PM Yes Yes A single rail would be preferable to a dual rail with low ratings Shouldn't have anything to worry about with a low end card though Can't find your answer ? Ask ! Publish Related resources : ForumHelp - Very confused about PSU and 12 V Rails Forum2GB HD 6950 Confused about PSU and Rails Forum500w psu with 2 18a 12v rails enough for GTX 260? ForumWhy would I need 2 rails for a PSU ? ForumPSU : Rails ? Voltage? Amps? Please explain... Forum60 V .3 MA from PSU on all rails is this normal? ForumSingle 12V rail or multiple 12V rails ? The eternal question answered ForumLow voltage reading on +5v, -5v, and -12v rails ForumInstalling new PSU - Do not understand rails ? ForumPSU labelled as dual rail , but is it actually single? ForumWhat is the "correct" way of calculating amps on multiple 12V rails ? ForumFaulty psu ?, combined amps on 12v rails ?, and future proofing my rig? Forum7770 and 650Ti 12v rail Amps compared to my PSU ForumStupid question about 12volt rails . ForumPSU Rails power supply question ForumWill this PSU be enough? Forum[Solved] Wattage Calculator + PSU Recommendation ForumCooler Master PSU & Japanese Capacitors Forum[Solved] Plz Help My PC is burning....:'( ForumPower 'allotment' from multiple 12v rails More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !