I took a look at the APC site and interestingly the numbers they have for VA for a couple of servers is much lower than I get doing the Amps * Volts calculation from the labels.
I'm checking out Wikipedia and elsewhere so I can try and understand this stuff - I just want to be able to provide accurate information. Thanks for giving me a couple of places to look. ________________________________ From: Stefan Jafs [mailto:[EMAIL PROTECTED] Sent: Wednesday, October 15, 2008 4:16 PM To: NT System Admin Issues Subject: RE: Wattage Calculation First of all 6.3Amps at 110 Volts is 693 VA not Watts the difference is the power factor: http://en.wikipedia.org/wiki/Volt-ampere That's the draw from the grid at max power. The 300Watts is the output on the DC side, the difference is the heat generated in the Power supply used to heat the PC (joke)! ___________________________________ Stefan Jafs From: Ralph Smith [mailto:[EMAIL PROTECTED] Sent: Wednesday, October 15, 2008 4:04 PM To: NT System Admin Issues Subject: Wattage Calculation Can anyone help me out and educate me on something? We are having some work done, and I was asked if I could supply the total wattage for all the equipment in our server room. I thought I could use the specs from the tag on each item, take the total number of amps, and multiply by 110 to get watts. What is throwing me off is that if I look one of our typical desktop PCs it is 6.3 A at 110 volts, so it would be 693 watts. The power supply is 300W max, so something seems to be wrong with my thinking. What would be the correct way to do this? Thanks, Ralph Confidentiality Notice: ---------------------------------- This communication, including any attachments, may contain confidential information and is intended only for the individual or entity to whom it is addressed. Any review, dissemination, or copying of this communication by anyone other than the intended recipient is strictly prohibited. If you are not the intended recipient, please contact the sender by reply email, delete and destroy all copies of the original message. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
