Sapphire R9 290 Tri-x OC. PSU ISSUE!!!

Solution
With overclocking video cards the things you need to look at on power supplies is the power delivery on the 12v rails some power supplies have single rails some have multiple rails. in your case it looks as if your power supply has 56 amps on the 12v rail. which means that you are good at stock for your video card. Now looking into overclocking you will have enough head room with that power supply for a non aggressive overclock, but if you for what ever reason do a more aggressive overclock with something like a water block in the future you would need a upgrade. Guessing by then you probably will run crossfire. If you want a more in depth look at things with your system go to http://extreme.outervision.com/psucalculatorlite.jsp...

eatmypie

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Sep 12, 2013
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With overclocking video cards the things you need to look at on power supplies is the power delivery on the 12v rails some power supplies have single rails some have multiple rails. in your case it looks as if your power supply has 56 amps on the 12v rail. which means that you are good at stock for your video card. Now looking into overclocking you will have enough head room with that power supply for a non aggressive overclock, but if you for what ever reason do a more aggressive overclock with something like a water block in the future you would need a upgrade. Guessing by then you probably will run crossfire. If you want a more in depth look at things with your system go to http://extreme.outervision.com/psucalculatorlite.jsp sometimes the calculations can be wrong. A lot of people only look at the watts of a power supply and don't look at the quality or power delivery standpoint, like I have a home theater pc with a sea sonic 430watt quality power supply and I was able to put my gtx 780 in there for fun to test my theory for fun. point being you don't need a crazy watt power supply most of the time as long as the power supply is good quality. Gold is very good
 
Solution

blowik

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Mar 11, 2014
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Yep thanks a lot for answer... At first I was worried that i bought first version of aurum 700w (with multiple rail 4x 18 amps),but than i found out its an S version with single rail. Im not planning to OC a lot... max to 1080-1100 mhz... I hope PSU will handle it. Now im thinking why i didnt buy I7 4771 for almost same price (about 15 Euro more)... I didnt know this revision of 4770 even exist :) But 100 mhz does not make any difference i guess... About crossfire... im not planning it... In one or one and half year ill sell this card and buy something more recent.. :)
 

leeb2013

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from this article, peak current of the R9-290x overclocked is only 26A from the 12v rail, so you should be fine.

http://www.techpowerup.com/reviews/Sapphire/R9_290X_Tri-X_OC/22.html

Stock R9-290 is only 22A.

I think when they say 48A rail, they mean for the whole PC, absolute worse case, because there's no way your GPU takes 576W!! As shown above, it's around 260-300W, which ties up with the TDP being 275W stock. Your CPU will be around 95W max, may be 120W with o/c.
So roughly 450W for your whole system stock, max.

I'm getting a R9-290 Tri-x today, so will be able to confirm soon enough, with a I5 o/c to 4.4GHz.
 

leeb2013

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Thanks, there was more to my post which covered that.

I should be able to report tonight or tomorrow how much my total system takes when benchmarking.
 

leeb2013

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that was with a big overclock I just did as worse case, it's typically about 250-260W at 957/5000 MHz and 1v so roughly in line.