>How do you know what your average wattage drawn is.
>All I know is that the power supply is rated for 500W. And of course
>there is a 15 inch monitor.
It�s everything that�s connected and how much it�s used. Computer, monitor,
external gear, etc. A power supply rated to 500w can supply 500w, but
doesn�t always � that�s its yield, not draw.
In general, like everything else, get the biggest one you can afford. The
think that will really change is not really how much you can connect to it,
but rather how long it�ll run the stuff that is connected to it. A UPS
might run a quiet server only for � hour, but run an active workstation and
monitor for only a few minutes.
I�ve got two decent Belkin 1000VA units rated for about 30 minutes at home
here: one for my server has the server (a dual PIII1000 with four hard
smallish drives and a 400wt power supply� no monitor) and a linksys router.
That one�s lasted over 30 minutes on battery. My other one is for the
workstation (a P4 3.06GHz with 4 large hard drives and a 450wt power supply,
two 18.1� LCDs, an external Harddrive and an office phone) and that one
might give me 15 minutes.
Your mileage will vary, but the more you buy the more you get.
Jim Davis
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