my server is a EeePC1000H which runs at ca. 15W when streaming music wireless and the screen is on.
When the screen is off, it goes to 11W. Since I run it on Ethernet, I think it's a few Watts lower now.
I borrowed the measuring instrument from a friend and I don't know if it's very accurate but I think
that <20W is low enough for me.
View Poll Results: Power consumtion of your server?
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No idea, I definitely should measure some time
Low: < 15 Watt
Medium: < 50 Watt
Medium+ : < 80 Watt
High: > 80 Watt
No idea, and could care less
Results 41 to 47 of 47
2010-01-12, 09:15 #41Classic, Boom, Radio & iPeng
2010-01-12, 17:49 #42
So the actual math is:
Power consumption during operation: 100W (measured value)
Power consumption in standby: 6W (measured value)
Power reduction per day: (100W - 6W) × 4h = 376Wh
Power consumption of micro server per day: 6W × 24h = 144Wh
Total power savings per day: 376Wh - 144Wh = 232 Wh
Savings per year: 232 Wh × 365 × $0.00017 = $14.40
$419/$14.40 = 29.1
Apparently I was even too optimistic, it's more like 30 years until it pays off. Your calculation would be correct of course if I was to replace a server that does nothing than run SBS now. And besides the monetary saving there's also the convenience that I could for example reboot my PC any time without stopping the music.
Does the micro have a standby mode where it consumes even less, or does it consume 6W all the time?
2010-02-07, 06:22 #43
I run SBS from a Fujitsu Siemens SCALEO Home Server 2105 with an Intel Celeron 420 1.6GHz CPU, 2 GB RAM and 2 WD5000AACS Green Caviar drives. It consumes an average of 40 Watts when powered up and less than 2 Watts when hibernated. I was tempted to buy an Atom-based system that consumes only half as much, but it would have been more expensive with only a small system disk than my complete server with 1 TB, and the 20 Watts advantage would have taken ages to pay for the difference.
Currently, the server backs up our data and runs SBS and Subversion. It is hibernated most of the time and WOLed by our Windows clients and Squeezeboxes.SCALEO Home Server 2105 | Logitech Media Server 7.7.3 - 1355443035 | Server Power Control 20120427.163654 | Transporter & Duet & Boom & Radio | Rotel RC-995 & RMB-100 | Phonar P-5
2010-02-07, 11:27 #44
- Join Date
- Jan 2008
Intel D945GCLF + 1G + 1.5T Seagate LP drive, Ubuntu 8.04.1 + powering Linksys WRT54G as switch = 38W. Measuring from plug of UPS = 40W.
I guess not too bad considering it runs squeezeboxserver, scheduled X10 device control, central file server, printer server, and my remote access gateway.
2010-02-08, 22:08 #45
- Join Date
- Oct 2009
Sheevaplug FTW! I think it uses less than 10W at max
2010-02-12, 01:24 #46
- Join Date
- Jul 2006
- Brackley, UK
Okay mine has now changed. I found someone to take my server laptop off my hands so now I have a 1.1GHz Fit-PC2. Power consumption when playing music is 6w according to my meter.
2010-02-21, 14:26 #47
- Join Date
- Apr 2009
Windows Home Server
I run on a custom-built Windows Home Server box. It does a lot more than music streaming and is on 24/7. Specs:
3.0GHz Core 2 Duo
4 1TB WD "green" drives
300W SeaSonic 80plus power supply
Power consumption (per Kill-a-Watt) is 47 watts at idle and 60-80 watts under load.
Doing some research before building this, I found that one of the most important items to consider is the power supply. 300W was the smallest I could find that supported the motherboard. I would have gone with a 200W supply if one had been available.....