why there are soo many G5 for "Spare or repair" faulty? But not seen a 2.3 ghz at Ebay faulty and very Little G4's googled a bit around but couldnt find an Answer. what i found is,that upgrade CPU for Quicksilver are down to $155.- for 1.6 ghz,which gives me the Idea to stick on G4 and don't do much with my G5 Have here a 2x iMac g5 and 2x desk top,all not working.swap caps on the one iMac,the second has a few lines on the Screen and freezes from Time to time.actually always when he's needed.Will try to back logic board or replace if not other works then back to Ebay. One g5 desktop gets a intel logic board with Quad,i keep myselfe.power Unit i use from a MDD which fits in the socket and i have a DVD RW unit from a studio Computer i put in. the other 2 g5 desktop,one is a 2.00 ghz frozen and the other seems me a early 1.8 Ghz with 4 Ram Slots and a big G5 Cover over the CPU Yep,have a Xserve 2.3 ghz logic board with CPU,but not sure if CPU fit in G5 2.3 ghz desktop. if yes i could look around for a G5 2.3 ghz with a failed CPU. there are a few 2.5 ghz and 2.7 ghz around,but how to maintain the Cooler.I'm not really brave enough to risk frying the Board or/and CPU with leaking Cooler. Anywhy.As lion will not fit on early intel mac,so they will be shortly on the Marked,i think. Was reading last someone changed the Intel CPU to a newer,but he didn't mention which socket they are.On the other Hand gave he a description how to change the Command,that the Mac accepts the CPU. All about as im in need to move on.Got me a house in the Alps,and there are not many Mac-Users around,and i need to have a machine,+ Back-up machine,and maybe some Parts,for Cost as Low as possible.