Rick Meyerhoff writes: > The last time we had a fest in a conference room we blew out the > power. If we estimate 20 machines at 2 amps per machine, > that's 40 amps. That's a rough estimate While it is always good to be conservative in your estimates, it seems high. A computer usually uses the most power when it is starting, since that is when the drives spin up. High end video cards might use more power, but I've never measured since I don't play Quake on my servers. I've seen different racks of eight servers pull between 1.4 and 6 amps total. I've seen a box with eight IDE drives never go above 1.1 amps. Two amps is probably a safe estimate, but a more realistic one might be one amp, assuming everyone isn't playing Quake on a GeForce 4 or powering up at once. -- David Phillips <david at acz.org> http://david.acz.org/ _______________________________________________ TCLUG Mailing List - Minneapolis/St. Paul, Minnesota http://www.mn-linux.org tclug-list at mn-linux.org https://mailman.real-time.com/mailman/listinfo/tclug-list