Don't forget memory. Memory is probably THE least reliable in computers today. In some 16-17 years with Macs, I've never lost a monitor. Power supplies yes, but only in my old Mac Plus from about 17 years ago. :-) It still runs to this day. Mac OS 7.5..Ah..the good days when a 200MB hard drive was considered HUGE and an entire bootable OS would fit on a floppy. For hard drives, I have 8 macs running here, and in 16 years had to replace about 3-4 hard drives. Maybe I'm one of the lucky ones. Or they just don't make them like they used to. Ah, my mac plus with the fishbowl monitor, god I love that computer :-). CJ On Nov 12, 2003, at 9:10 PM, Mel Krewall wrote: > Power supplies, hard drives and CRTs are the least reliable parts of > any computer. High voltages, high temperatures and moving parts are > the enemies of any mechanical object. The lubrication idea is a good > start, just make sure you keep it on the fan and don't let it get into > the PS or other parts of the computer. And yes, the fan is something > you can replace. The main problem you will face is finding a > replacement that is fit and function compatible. If you have a Fry's > Electronics store near you that would be the best bet. Otherwise, an > industrial supply house like Grainger's would be a good source. If you > can replace it with an identical model it will make things easier. The > fan will likely be marked with the required voltage on it; if not > measure it with a multi-meter. Then get a fan the same size and > voltage to replace it. Be careful when you disassemble, make sure you > don't drop any screws into the body of the PS (that could be > disastrous). Also take care to stay away from the capacitors that > could carry high voltages. > Good luck on your repairs. > Mel > > "It is almost impossible to remember how tragic a place the world is > when one is playing golf." > ~ Robert Lynd > > On Nov 12, 2003, at 3:51 PM, sr ferenczy wrote: