[R9 270x] PSU +12V dual rail question

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jopamaster

jopamaster

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Jul 17, 2014
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Hello guys,I'm having a concern about PSU requirements for a graphics card. I've been told that R9 270x requires at least 24A on +12V.My PSU is 500W and I know it barely fits but I'm wondering about one thing.This PSU has dual rail +12V,each of them are 15A(+12V V1[15A],+12V V2[15A]).So this PSU totally supports 30A on +12V. I also know this means that the entire Motherboard with its components can have maximum 30A on +12V and not separately on one rail only.But I want to know if the requirements for the GPU are 24A for the whole configuration or this means that GPU by itself must be supplied by 24A?

P.S. I personally think that GPU can't be having all 24A for its self but I'm prolly wrong.
 
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yeskay


The 24Amps is for all usual basic...
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yeskay

yeskay

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Jul 12, 2014
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The 24Amps is for all usual basic components in a PC - 1 x hard disk, 1 x optical drive, Motherboard, RAM, 1 or 2 case fans including the R9 270X GPU.

Your PSU can deliver 30Amps on its dual +12V rails combined, which is more than enough and can even handle additional hard disk, optical drives or any add-on cards, if you include in future.

Cheers!
 
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mx_mp210

mx_mp210

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May 25, 2013
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GPU specs are measured with combining power requirements of other components,so as long as you are having enough power, you don't need to worry about. As we can see his current 12v rail can give maximum 12V*15A = 180W on 12v line that's almost all the power it requires. Not to mention +5v and +3v lines also carry power...
Source: http://www.tomshardware.com/reviews/radeon-r9-280x-r9-270x-r7-260x,3635-18.html

 
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