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Computer Power Requirements (wall outlet)

greyhair

Junior Member
I don't know if this is the correct spot for this question.

Q: What are the wall outlet requirements for Multiple Computers?

More:
I have 6 Compaq servers (250W PS), 7 No-Name brand Servers (350W PS)
6 Monitors, 2 Scanners, 1 APC 2200 UPS, 1 APC 1400 UPS, 4 Cisco 24 port Switches,
hopefully going into 1 room, How much power do i need? I was thinking of 3 - 30amp 120V
outlets... hep meh, plez

/me don't know anything about wall outlets.
 
get a special circuit installed for that particular room. otherwise, you could be sucking power from the rest of the house, especially once those 2924's start pumping a lot of data through 🙂
 
My town's building inspector suggested (but did not require) a single, 20 amp 120v circuit just for a lowly PC - and he didn't know I was putting in a (very small) LAN. I would suggest that for your setup you consult with a good, qualified electrician.

It doesn't sound like you're doing this from scratch; what setup/problems do you have now?

Don't forget the air conditioning.......
 
First off get rid of the 120 volt circuits. Too much heat.

Two 20 amp 220 volt circuits should be fine. 4400 watts of goodness. If this is for a home then maybe the 220 gear will set you back some (you'll need all new power cables). If you want add up all the power supplies and that will give you power requirements, then make sure you have enough circuits. Most all power supplies can take 220 but make sure. Some auto-switch, others have a manual switch.

power=voltage*current
 
Thanks for your replies...

I talked to a "qualified Electrician" he said "4 computers per 20amp/120Vac circuit, typically a computer draws 2 amps from the wall."
Now, I don?t know how qualified he is but... it made sense to me... I have 7 computers on a 15amp/120vac circuit now... heh.. Turn on a heater and *POP*

Please keep posting... need to find more qualified people than a guy that call a computer
a "computin-iron"... hep meh plez
 
First, find out what is the size of the service that you get into the House/Office/Whatever, and how it is distributed through. You may be of need to get heavier service from the Utility.

You don?t want one line in the room to carry the whole load, since if it goes down the whole system goes down.

Standard lines are 15A ? or 20A. Split it into 3 separate 20A lines from the main electrical board to the computer room, and spread the load evenly
 
15 amp/120 volt circuit = 1800 watts power. If you have 250 watt power supplies you can do the math.

Turning on a heater with 7 computers will for sure pop a breaker. Alot of those heaters are 1000 or 1500 watts. Leaves little current for anything else.

If you can't do 220 volt then get 20 amp circuits/wire. that'll give ya 20*120=2400 watts power per circuit.
 
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