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powermac 8600 keeps freezing up, not enough RAM

How do I free up more RAM from the harddrive?

PowerMac, Mac OS 8.6 or Earlier

Posted on Mar 18, 2014 3:32 PM

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6 replies

Mar 18, 2014 5:32 PM in response to EddieJB

Make sure the RAM is paired properly. Although the official word was that not pairing would only cause a little performance hit, I found several Macs of that generation and architecture that would crash or not start at all in the presence of unpaired RAM.


You have eight slots in two banks of four. It he banks are A and B, and slots in each bank are numbered 1 through 4, you wnat this type of arrangement (sizes shown are just for an example):


A1: 32MB B1: 32MB

A2: 32 MB B2: 32MB

A3: 16MB B3:16MB

A4: empty B4: empty


It's also recommended to "cascade" the RAM modules by size; the largest modules go in the lower-numbered slots like I show in the example

Mar 22, 2014 3:57 PM in response to EddieJB

Eddie,


The original OS was 7.5.5 or 7.6.1. The machine would benefit greatly from OS 8.1. That was my all-time favorite OS on Legacy Macs.


Go to the Apple in the top menu. Select "About This Mac." That should bring up a window that shows the information about memory allocation. If the OS is hogging a lot of memory, report back. If it is only taking a small percentage, then the OS is not the issue.


Go back to the Apple. Scroll down to control panels. Select Memory and see what it says.

powermac 8600 keeps freezing up, not enough RAM

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