Colin Coles wrote: > On Friday 01 July 2011 12:05, Timothy Murphy wrote: >> >> Any advice or suggestions gratefully received. > > If you are thinking of the UPS route a caveat: I have several HP servers and > most of them will not work on cheap UPS's as they do not produce the pure > sine wave modern HP machines require but rather a crude stepped voltage. perhaps naively, I'm surprised: doesn't this mean they put crappy PSUs in those servers? I thought decent PSUs were expected to deal with dirty input AC?