Colin Coles wrote: > 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. Question: are we talking server-grade systems, rackmounts? I can't imagine that they'd do that for consumer-grade machines. mark