Hello
I have done some upgrades on an old Performa 5400/160. I have purchased a 5500/250 board, stuck all the a/v thingies on it, the L2 cache and lots of RAM (128 MB), CSII ethernet card and an USB card in the PCI riser. What I have NOT done is replaced the PRAM battery (I don't have any and in the electro shop they are very epensive). I have troubles with this machine and I was wondering if the PRAM battery is to blame or something else.
These are the symptoms:
I may have to startup the machine twice as the first time after the bong I don't get the gray picture. On the second and subsequent restarts it starts booting fine. Upon installing Mac OS 9.0.4 (which goes smoothly), everything works perfect without a single error. Soft restart or Special/restart cause no problems. However - when I shutdown the machine and leave it off for a while (few hours) I am not able to boot successfully. I get 'bus errors', 'address errors' and god-knows-what-nots during the boot process (after the boot logo and extensions but logo still showing). Nothing I do works until I boot from the Mac OS 9.0.4 CD and make a clean install thus going back to the beginning of this paragraph...
The PRAM battery could be the problem with starting it. Try doing a CTRL-APPLE-POWER when it does. If it starts okay then it is a PRAM battery issue.
Address errors and Bus errors should not be related to PRAM problems. Try reseating all your removable cards (RAM, ROM, Cache, PCI,...).
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