[GLLUG] Laurel Park Room

Bill Bartilson bbartilson at comcast.net
Tue Mar 7 16:31:33 EST 2006


8*1.8 (which is actually a pretty reasonable figure for steady state  
draw) = 14.4 amps.

I don't know this place, but years as a musician taught me that hotel  
power is usually crappy.

All this means is that stuff gets added to circuits without regard  
for actual draw.

So I would recommend this sort of setup:

3 stations per outlet, maximum of 6 per single gang outlet box.

Double gang outlet boxes should still count as only one circuit,  
unless they appear to be purpose built, or can be toaster tested (see  
below).

Typically, an average power strip will power three PCs and still  
reach an outlet w/standard IEC cord lengths. (6ft)

I would give the server an outlet (outlet, not circuit) all to  
itself.... preferably without any extensions/power strips involved,  
unless it's a conditioner of some sort.

Further, some inexpensive APC UPS's would be a good buffer for the  
CPU's.  A 650 is plenty to run 3.

Plug the monitors directly into the power strip. (not through the UPS).

The monitors don't really care how clean the power is.

(Meaning they might show noise artifacts on the screen, but won't be  
adversely affected by the spikes from the arc welder next door)

For power testing, you need two household toasters.  (preferably well  
ahead of time by someone who is close by the venue)

Plug one in on one wall, and one on a wall adjacent.  Turn them both  
on - if the circuit holds, they are separate.  If not, you'd best  
find more power.

That's probably more than anyone wanted, but perhaps useful for  
general info.

Has anyone else done this at a previous con in this room?  If they  
did, I suspect they found power. : )

I would avoid extension cords.  I can lend some real power cables  
(musician stage boxes) if they are needed.

-B


On Mar 7, 2006, at 4:05 PM, Jason Green wrote:

On 3/7/06, Charles Ulrich <charles at idealso.com> wrote:
> Power is still something of a variable (gaming machines or not)  
> until we
> get more info from the hotel. Can someone make a good guess at how  
> many
> amps an average PC with 17" monitor will pull?

Taken from here:  http://www.twistedmods.com/article.php?artid=136

Another use for this information is in planning a LAN party. Most
household circuits are rated at 20 amps. To prevent the breaker from
tripping, you should load up the circuit to no more than 80% of its
rating. That means you have 16 amps per circuit. If a typical monitor
draws 0.8 amps, and a typical computer draws 1.0 amps, that means you
can safely fit about eight people on one circuit (approximately 2 amps
per person * 8 people = 16 amps) without overloading it, assuming the
circuit has no other loads on it.

----

This is assuming the attendants aren't bringing super powerful gaming
machines that require 600 watt power supplies, too.  Also, do you know
if each outlet is on its own circuit, or if it's one circuit for the
whole room?

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