On Friday 01 July 2011 15:25, Nicolas Thierry-Mieg wrote: > 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? Lock-in tactics I think, I ended up having to buy HP USP's at about 5x the price. Colin