Closed 550W Powersupply. Do you combine current on each +12V rail Tags: Graphics Cards Powersupply Graphics Last response: November 15, 2012 4:04 PM in Graphics & Displays Share Dumisani November 15, 2012 2:23:42 PM Hi everyone. Im still a noob for PSU specs. I am bout to buy a GTX570 that needs 550W PSU. I saw a Huntkey 600W PSU with two 12V rails each with 18A. I think it has only one 6-Pin Connector. A GTX570 needs 34A on a +12V Rail. I requires two 6pin connects. I am wondering if this PSU will be able to power it. Considering the fact that I will add a molex to 6pin for the 2nd 6pin slot. Please Help me I am at cross road. Currently I have a 500W Premium PSU with 22A on its +12V rail. Do I need to upgrade or will the GPU work a low perfomance. More about : 550w powersupply combine current 12v rail Sunius a c 289 U Graphics card November 15, 2012 2:33:53 PM You'll need a new power supply unit. GTX 570 requires one 6-pin and one 8-pin power connector to work. Dumisani November 15, 2012 2:37:43 PM The ones Im planning to buy from Inno3D or gigabyte require 2 spins. How the +12V current(A) works? I need help Related resources Can i combine the 12v rail on multiple power supplies? - Forum Rail balancing with dual 12v rail PSU - need help! - Forum 5770 on a 400W generic PSU with 17A on 12V rail - Forum Can dual 12v + rails combine ? - Forum PSU Too much amps on 12v rail ? - need electronic expert - Forum Can't find your answer ? Ask ! Get the answer Best solution Sunius a c 289 U Graphics card November 15, 2012 2:51:59 PM You cannot add them. The manufacturer of a power supply usually tells how much power it provides on both rails together. Total power would be something like full of one raid and half of another one. Though, I am sure gigabyte one requires 1 6-pin and one 8-pin connector: http://www.gigabyte.com/products/product-page.aspx?pid=... Dumisani November 15, 2012 2:59:45 PM Best answer selected by Dumisani. Dumisani November 15, 2012 3:01:59 PM Thanks. Actually I wanna know that given a 600W PSU with two +12V rails with 22A each. If you supply the GTX570 with two 6pin connectors. Will it be enough? Will the amount supplied to it be 44A. Sunius a c 289 U Graphics card November 15, 2012 3:27:27 PM As I said, you cannot add them. Depends on the PSU. Does it have the two connectors natively (without any adapters?). Dumisani November 15, 2012 3:33:20 PM one 6pin and a Molex Adaper Sunius a c 289 U Graphics card November 15, 2012 3:37:59 PM Don't use it to power up a GTX 570. It calls for trouble. GTX 660 would be better choice for the power supply unit. Dumisani November 15, 2012 3:38:32 PM Sunius said:Don't use it to power up a GTX 570. It calls for trouble. GTX 660 would be better choice for the power supply unit. Thanks a lot for your advice. One more thing what kind of a trouble. Will it damage my GTX570 or it will perform lesser Sunius a c 289 U Graphics card November 15, 2012 4:02:21 PM It can damage the GTX 570. It can damage your motherboard. It can just burn out. It can cause fire, or even explode. Results of low quality power supply failure can be unexpectable. Can't find your answer ? Ask ! Publish Related resources: Forum550w enough? ForumWhat is the "correct" way of calculating amps on multiple 12V rails? ForumHow many amps do i have on my 12v rail ? ForumSingle 12V rail or multiple 12V rails? The eternal question answered ForumHow to tell amps on a dual 12v rail psu ForumWhat will happen if the Amps on the 12V rail are too small? ForumQuestion about AMPS on 12v with multiple rails Forum12V Rail ForumWhy would I get a split rail PSU if it offers less 12V amps? ForumHD 7870 Forum[Solved] Single rail dual rail question? ForumWhat should I do to improve my current computer ForumGTX 470's for $100 each worth it? ForumWill ati 7750 work on 16amps on 12v rail ForumIs my 550w PSU and mobo good for a ati 6870(and future crossfire)? 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 !