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Asus GTS450 TOP PSU requirement!

Last response: in Graphics & Displays
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December 3, 2010 8:39:58 AM

Hello,
I just bought an ASUS engts450 TOP, I want to know whether my current PSU is enough or do I have to upgrade...?
Current PSU:
Coolermaster 460Watt 12V/18A
PSU details:
http://www.coolermaster.com/product.php?product_id=3686...

Edit:
The reason why I'm much worried about my current PSU is that the version I had (Asus 450 TOP) is DirectCU edition which has copper heat sinks on it.... so it may consume more power!
a b Î Nvidia
December 3, 2010 9:05:22 AM

You will be fine the card only needs a single PCIE connector which you have. Also you have +12v/26A not 18A.
I have the same Power supply powering my old rig which is in the daughters room hapilly running a 4850 which is about the same power wise.
If you need reasurance look at this http://www.techpowerup.com/reviews/ASUS/GeForce_GTS_450...

Mactronix :) 
December 3, 2010 9:13:28 AM

mactronix said:
You will be fine the card only needs a single PCIE connector which you have. Also you have +12v/26A not 18A.
I have the same Power supply powering my old rig which is in the daughters room hapilly running a 4850 which is about the same power wise.
If you need reasurance look at this http://www.techpowerup.com/reviews/ASUS/GeForce_GTS_450...

Mactronix :) 


thanks! I'm not good about PSUs.
You said it is 26A but my PSU box has 18A written on it, dont know more about it...!
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a b Î Nvidia
December 3, 2010 9:27:41 AM
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In the link you provided it says there are 2 +12v rails, each says its 18A. Below those is a wattage 312 which is for both rails.
Each rail can provide 18A on its own but they both cant provide 18A at the same time 18+18 =36. This is because there is only 312 watts available to both rails to share, the math is, Watts divided by Volts = Amps. so 312 divided by 12= 26 A shared across both rails. Some PSU's can provide enough for both rails to provide the stated amount but quite a few cant like yours.

Mactronix :) 
December 3, 2010 11:22:46 AM

Best answer selected by 07ee17.
a c 168 Î Nvidia
a b Ĉ ASUS
December 3, 2010 11:32:49 AM

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