I have a 9500 with a 400mhz upgrade card. So far I have switched out tthe processor card and motherboard. I still occasionally have a problem starting up, a white screen will come up but the mouse doesnt show, the system icon doesnt pop up. A couple of times the extensions started to load then the system froze. (only 1 or 2 times) I restarted w-out extensions, no help) But when I do start it up if I run 2 or 3 applications i.e: Internet Explorer and mac amp outlook express It crashes and I get multiple error ID 11 and sometimes 10. Could this be a power supply problem? Any other ideas. Could it be a faulty system folder?

Error 10 is a Trap error and 11 is a hardware error. Neither of these may tell exactly what the problem is. You say that you changed the Mother board and CPU. Did you reinstall the operating system? You can do restore in place and not lose any data. Does your computer seem to hang after it gets hot? If you have upgraded quite a bit, the case was designed with cooling for a certain spec. additional components or faster CPU will create heat that cannot be controlled without additional cooling (cpu fan?) I forget the phrase but I think it is Electro-Migration where the components get hot, the transistors enlarge or crack and data migrates from one channel to the other. System errors will abound. You upgraded the CPU but is th RAM the same bus speed/timing as the new CPU front side bus?

thanks for the response... Well the memory is all timed correctly as far as the temperature.. if the processor got too hot would that cause startup and system errors like that? it seems to be running at 64 F is that too hot. MB the fan has gone out on me I seem to remember it staying at around 52 F. So if I ran too many applications or processor tasking apps then it would increase the heat and problems? SECONDLY: If i added ram to the a1,b1 then skipped the a2,b2 slots , would that affect anything or can the ram be placed anywhere (matching the sets to take advantage of the memory interlacing of course) Thanks!

The temperature I spoke of was the CPU temperature. If you are indeed running at 64 F then you have no problem with heat but I suspect it will be quite a bit warmer than that. The problems start at temps greater than 107 F but some can get up to 140 F before any problems become apparent. Sounds like you have some issues that need to be resolved. First find if you can boot from CD with no issues. Yes? - Initialize the drive and restore software. No? - Then you have a hardware issue that must be resloved. The card you put in may have timing issues, the RAM may need to be updated to 100 Mhz or there is a poor voltage for the new CPU requirements. You know the new iMac is only 799 and your issues may be justification for an investment as you would get updated software/capability/speed/ RAM/capacity etc...