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My Performa 635CD is Being Lazy!

My Performa 635CD is Being Lazy! Hardware 8 posts Oct 17, 2014 — Oct 22, 2014
My Performa has a strange quirk. It seems to be morally opposed to giving system errors with text in them. Either that, or it's just too lazy for words.

These errors pop up when I leave the Performa running unattended for a certain period of time. Also, like most system errors, they sometimes appear for no apparent reason. The crashes don't interrupt normal use of the computer - it crashes about as often as most other computers do when they're actively being used.

The Performa has been in my family since before I was born, and nearly all of the bomb errors I've seen have looked like this:

TextFreeBomb4.jpg.11bc43596809b55f2a761f06e9d5106e.jpg


I believe my Performa runs System 7.5.1. The crashing isn't a huge problem. It's just really weird, and I'm curious if anybody else has (or knows of) a computer that crashes like this. :p

My performa 63x's do that. Usually due to dead pram battery. It's a square battery on the slide out motherboard. Also update to 7.5.5 if you get a chance.

Does a dead PRAM battery have any other noticeable symptoms? Other than the blank bomb messages I don't recall ever seeing anything abnormal.

Thanks! :)

No its just kind of quirky that way.  

I always noticed it more on waking from sleep on my 638CD.  It doesn't hurt anything but 7.5.5 took away some of the issues.

OK. :) Little glitches and stuff like that are what make computers most interesting, in my opinion.

Thanks again!

Isn't the 630 series the last of low end Macs before 68k was completely retired in favor of PPC?

Yes.  They were LC 040's and no real expansion.

If you want to replace the PRAM-battery (I think it's a Rayovac 840), you can do this by soldering 3 AA-batteries together. Did that on my 4400/200, works just fine.

mp.ls