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Ultra Low Power build

post #1 of 5
Thread Starter 
Hey OCN, I've been gone for a long time, and mainly out of the consumer computer scene for about 3 years (since I built my sig rig), and have mainly been doing enterprise level stuff (read, mainly business machines and servers), so I really don't know what's out there in the consumer realm, and I haven't been able to get any reliable, pertinent, and timely information about the subject at hand.

I recently purchased a house, and I finally have the ability to do everything I wanted as far as network infrastructure and the like. I currently have a fileserver, an MX server, a webserver, and a custom firewall/router.

That's all beside the point. The point is, all of these run on old netburst-era P4s, and as such drink electricity and pump out loads of heat. To alleviate this, I was hoping to move to all low-power consumption builds, and throw them in server cases in my rack. (they are all sitting in optiplex cases right now...makes me want to cry).

So, I come to you. None of these need any serious processing power (they are all running swimmingly on P4s), but I would love to have very low power consumption. What route should I take for the least overall power consumption? I also want to keep these on the less expensive side. I'm really only looking for Processor and Mobo combinations that are very low power.

Thanks much.
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The Overmind
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post #2 of 5
your best bet would be a Sandy Bridge i3, uses 63TDP instead of Pentium 4's 90TDP so is roughly 1/3 more energy efficient at full load. also the i3 can come in a dual core supporting hyperthreading (total of 4 threads) and has far more advanced power saving features than a P4. and you could even turn the hyperthreading off and a core off to run as a single core saving even more power.

other than that, if you wanted to go the ultra cheap route you could try and find a few LGA775 (think thats the socket your servers would be on) Celerons, they also have a 63TDP if my memory is right.
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post #3 of 5
i3-2100T or Pentium G620T. Both are dual cores that use 35W.

For motherboards I'd just pick up a cheap mATX H67 board. The motherboard shouldn't make too much of a difference in power usage
post #4 of 5
if they run with old pentium 4's then just get an atom. they're a LOT power efficient than those p4's. I wouldn't get an i3 2100. they're too overkill for the work that you're gonna use them with. atoms would be perfect imo
post #5 of 5
Playing Devil's Advocate here. You can also look into the AMD Brazos platform. E-350 is generally better across the board compared to Intel Atom. As a matter of fact
you can take a look here and it will even give you E-350 vs. Atom vs. Pentium 4. TDP is only at 18W.

Typical cost for CPU and Motherboard is only between $100 - $120. This Asus mATX board has SATA6 and USB3 support
Edited by flyin15sec - 12/9/11 at 1:20pm
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