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Energy Consumption of a Home Server?

post #1 of 8
Thread Starter 
I recently upgraded to a new rig, but now I am left with an older -- and by no means underpowered -- machine. I'd like to turn it into a storage/media server, but I'm a bit concerned about energy consumption, since the fiancée wouldn't appreciate a dramatically increased electric bill.

Pardon the noob question, but what exactly drives up the cost of running an always-on server? Is it based on the PSU you have, how often you are accessing files, file sizes, all of the above...? I hope the question isn't too broad, but I couldn't find much searching the forums.

What kind of PSU do I need to support these devices and stay "green":
  • Intel Q9400
  • Gigabyte GA-EP45-UD3P
  • 8GB DDR2
  • Four 1TB HDDs

Does WHS offer energy-saving functions? Anything else I should keep in mind for a storage/media server? I'll be storing and accessing raw HD footage for video editing.

Thanks!
:D
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post #2 of 8
I'd get a Rosewill Green Series 430w at newegg.
    
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post #3 of 8
For power, you have to look at all the components and what you want it to do.
You have a 95w CPU that is a bit overkill for a server (unless you plan on doing the video editing/encoding on the server itself).
Do you need 8 gigs of RAM, or is it just what you have? The fewer sticks of RAM, the less power it uses.
For your HDD, I am guessing they are normal 7200 RPM drives? The newer Green drives use less power (but are 5400 RPM drives).

For a PSU, a 400-500w PSU is what you need, pretty much any name brand (Antec, Seasonic, FSP, Corsair) 80+ would work well (bronze or higher is even better).

WHS has an add in called Lights Out that lets you program the server to sleep and wake when you want it to, so you can have it sleep at night when it is not being used.
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post #4 of 8
Having the majority of it's use be at idle, electric bill wise would be similar to leaving a 120w light on 24/7 (Around here would equate to $10-15/mo). Find a gold or platinum rated PSU for highest efficiency and less electricity lost from AC -> DC conversion.

Speedstep/CnQ make a little bit of difference but aren't wholly substantial.
Waiting on X399
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Waiting on X399
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post #5 of 8
Downclock the CPU as low as possible/disable additional cores
Change to 2GB or 4GB of ram

My two servers use 50-80 watts each, hell the switch im using uses like 25 tongue.gif
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post #6 of 8
Thread Starter 
Thank you all for the info.

I suppose the specs are a bit overkill for a server, but I'm trying to make use of my old rig. It probably makes sense just to sell it, but I've had a couple bad experiences selling online, so we'll see how adventurous I get.

Thanks again for the help! This points me in the right direction.
:D
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:D
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post #7 of 8
Quote:
Originally Posted by xenn;13855839 
Thank you all for the info.

I suppose the specs are a bit overkill for a server, but I'm trying to make use of my old rig. It probably makes sense just to sell it, but I've had a couple bad experiences selling online, so we'll see how adventurous I get.

Thanks again for the help! This points me in the right direction.

yes having lights out running would save you a bit of power. it will sleep after a period of inactivity and then you can remotely wake it up if need be
Current PC
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post #8 of 8
I'm personally running a basic setup for my Home Server.
AMD Athlon X2 AM2 3800+ underclocked to 1GHZ and 0.9V
1GB DDR2 2*512MB
640GB WD Caviar Green
Thermaltake TR2 430W PSU
Possibly 2NICS to run Untangle.
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ESXi Home Box
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The Workstation.
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