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P5N-T Deluxe Power Consumption

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October 1, 2009 5:13:11 PM

I'm looking for a good mother board for a low power consumption desktop PC. I read the article in Tom's hardware comparing an Atom system with a Core 2 E7200 one that shows how this last has a better ratio performance/consumption with a 200 W PSU.
I'd like to know which are the power consumption of an Asus P5N-T Delux mobo, in particular with Linux to know if this could match my target.

Regards
a b V Motherboard
October 2, 2009 12:41:44 AM

I didn't even know you could buy 300W power supply anymore, much less a 200W. You might try Asus support directly with this one - giving them all the info on your proposed system.

Are you looking to see how small a PSU you can put in? A 450W PSU isn't going to draw 450W if the pieces it's powering don't ask for it. So within reasonable limits, a 450W PSU isn't using more energy than a 200W.

The Asus P5N-T additionally brags on how efficient it is in using power.
http://usa.asus.com/product.aspx?P_ID=64sh5AD8oYUq7Cp3

Here's page that calculates the power needs of components.
http://extreme.outervision.com/psucalculatorlite.jsp
a b V Motherboard
October 2, 2009 1:04:17 AM

The ASUS manual suggests no less than 550W for a fully configured system - CPU, RAM, graphics card, drives, etc... This seems to be the standard recommendation for motherboards these days.

Again, at rest or normal usage, your system may draw FAR LESS than 550W. But what about burning it in or testing RAM or other things requiring full power?
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October 2, 2009 11:43:10 AM

Thanks for your replies and interesting links. Maybe It's not the mb for my target.
In the article I read the PSU dimension matters: http://www.tomshardware.com/reviews/intel-atom-efficien...
I have to look for a mb with integrated graphic card and then evaluate carefully the wattage.

Thanks again and regards,
a b V Motherboard
October 2, 2009 12:36:07 PM

Thanks for the article link - interesting subject! I knew there were some efficiencies to be gained by starting with a low-wattage PSU, but didn't expect that much.
Here's a link to the board they used in testing:
http://www.foxconnchannel.com/product/Motherboards/deta...

I wouldn't count the Asus board out because of the PSU recommendation they list. Keep in mind, they have to say this to cover the entire range of CPUs a customer might put in - not just those looking for a low-power solution. And it does seem to have very extensive control and features aiming it towards the "green" market. In addition, Asus is a much more major brand, especially in the US, than FoxConn.

Foxconn however, does have a nice manual - and apparently offer a "green PSU" to go with their Green Series motherboards. I notice they have 3 models at Newegg, but not that particular one.
October 2, 2009 1:02:50 PM

There are two 2 problems.
The first is that such Asus motherboard (I like Asus mb) don't have video integrated and a graphic card could eat a lot of power and the second, general to all green motherboard, is if their greenness is in some way OS bounded, because I'd like to use (I already use it since about 15 years) Linux. So I have yet to do a lot of searches.

Thx
!