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iamuser

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how to calculate the right UPS for server

I have a windows server and it's running on a 700 watt Power supply. I need to find a UPS for that server but I don't know what the procedure is to calculating power requirements. I need the UPS to supply enough power for at least 30 minutes. Would be appreciated if someone can show me the formula and give me an example of it.
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Joseph Daly
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Here you go give this a shot, select the option for single server
http://www.apc.com/template/size/apc/index.cfm
That should actually be choose the option for selection by load.
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I was at the APC site but wasn't sure if it was actually acute or not. There was a UPS rated for up to 176 minutes for my server. The highest they go with CPU is Xeon. they don't list dual Xeons or Quad Xeons. This is why I was wondering if there was a formula that I could use to manually calculate the load and such.
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That's a great device and I'll probably get one. How do people who build out a new location/infrastructure deal with UPS & power? Everything comes in on order so they must have a way to calculate the power requirements for all their equipment (servers, routers, switches and etc) and get the right system in place (avoid spikes, clean power). Vendors always say using blades save on electricity vs single servers but how do one calculate that power savings prior to switching?
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Most of the suggestions given I knew already. I was looking for a formula or something similar