Closed PSU 12v rate Tags: Power Supplies Components Last response: October 25, 2011 5:20 PM in Components Share spotminer October 25, 2011 6:50:20 AM Hi, What is the difference of two 12v which is rated as 18.0 A from the one with 42.0 A rate. I'm kinda confuse with this. My assumption is you need to add the 2 12v to get the 36.0 A as its total rate? More about : psu 12v rate davcon a c 270 ) Power supply October 25, 2011 7:01:17 AM It's the design of the psu and power delivery. Obviously one is a single rail design. The other a dual rail design. spotminer October 25, 2011 7:06:06 AM But almost all Graphic cards around requires a 24.0 A 12v PSU? does it mean it's still okay to run the Graphics Card in two 12v 18.0 A? Since it's total A is 36? Related resources How do I figure out the 12v current rating on my PSU ? - Forum Antec Fusion PSU / need help identifieng 12v rail rating. - Forum PSU 500W for GTX 460 (what is 12v line and amps needed?)? - Forum 7770 and 650Ti 12v rail Amps compared to my PSU - Forum PSU w/ 18A on 12V rail for GTX 650? - Forum Can't find your answer ? Ask ! Get the answer davcon a c 270 ) Power supply October 25, 2011 7:10:46 AM spotminer said:But almost all Graphic cards around requires a 24.0 A 12v PSU? does it mean it's still okay to run the Graphics Card in two 12v 18.0 A? Since it's total A is 36? What psu and gpu? spotminer October 25, 2011 7:29:11 AM This GPU EVGA GeForce GTX 550 Ti FPB and PSU FSP AURUM 500w davcon a c 270 ) Power supply October 25, 2011 7:58:03 AM spotminer said:This GPU EVGA GeForce GTX 550 Ti FPB and PSU FSP AURUM 500w Yes i agree with your assumption 36A on the 12v rail = 432W. Plenty of juice for that combo. Intel Core i7 920(ES) @ 4.0Ghz (Turbo Mode Enabled) - testbed http://www.hardwarecanucks.com/forum/hardware-canucks-r... spotminer October 25, 2011 8:02:31 AM I see thank you very much, so that PSU can run the stated video card right? I will be upgrading my PSU and video card. Best solution davcon a c 270 ) Power supply October 25, 2011 8:05:41 AM spotminer said:I see thank you very much, so that PSU can run the stated video card right? I will be upgrading my PSU and video card. Full system load on that i7 920 overclocked was under 280w. You're good to go! spotminer October 25, 2011 8:27:30 AM Thanks a lot spotminer October 25, 2011 8:27:39 AM Best answer selected by spotminer. Mousemonkey a b ) Power supply October 25, 2011 5:20:54 PM This topic has been closed by Mousemonkey Can't find your answer ? Ask ! Publish Related resources: ForumXFX Radeon HD 7770 Core Edition on a 500W 12V 20A PSU ForumBest gpu for a 400w psu 12v at 17 amps ForumModifying PSU Fans from 12v to 9v ForumPSU 12v voltage drop on boot Forum600W 12V 2.2V: PSU Jargon, and GTX 670? ForumPSU 12v Rail? ForumPSU Too much amps on 12v rail ? - need electronic expert ForumWhy would I get a split rail PSU if it offers less 12V amps? ForumMinimum 12V current rating of 30A ForumIs my PSU providing enough Amps on the 12V rails? ForumHD 4650 with 250W PSU (14A 12V ) with Quad Core prossessor? ForumHard Disks Failing, PSU + 12V rail reported at 1.7V!?Event Errors Occur ForumUsing a PSU to power external 12v fan(s) ForumPSU Help Forum[Solved] PSU for new Xfire setup More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !