> Her machine, Apple's first PowerMac, was designed for a maximum of 64MB
> RAM (two 32MB SIMMs - Single Inline Memory Modules), as Mehboob noted. It
> also was pure NuBus and PDS. The configuration she indicated is not
> possible in a 6100, since SIMMs must be installed in pairs, and 2x64MB +
> 1x8MB is not in pairs. :) Plus, I'm looking @ the internals of a 6100 right
> now...there are only 2 RAM slots (versus the 7500's 8).
Whoops - missed one detail - the machine actually has 8MB of RAM
soldered onto the motherboard (which doesn't need to be paired). According
to Apple:
Based on the 66-megahertz PowerPC 601 microprocessor co-developed by Apple,
IBM, and Motorola, the Power Macintosh 6100/66 and 6100/66AV both have
built-in, floating-point math coprocessors and come with 8 megabytes of RAM,
expandable to 72 megabytes. They provide on-board high-speed Ethernet
support as well.
....
Memory
------
* 4 MB ROM
* 256 bytes of non-volatile parameter memory
* 8 MB of RAM standard, expandable to 72 MB
* 2 SIMM slots
* SIMMs can be 4 MB, 8 MB, 16 MB or 32 MB, but must be installed in pairs
of the same size AND speed. For example, you should install two 8 MB
SIMMs in first two adjoining slots.
* Possible RAM configurations are 8 MB, 16 MB, 24 MB, 40 MB, and 72 MB.
* 80 ns SIMMs or faster
* L2 Cache Slot for Optional Macintosh Cache Card
This information is from Apple's Technical Information Library - the
document referenced is at
http://til.info.apple.com/techinfo.nsf/artnum/n16928. This information also
applies to the 6100/60, at
http://til.info.apple.com/techinfo.nsf/artnum/n14541.
I hope this helps settle the issue. :)
Sincerely,
Robert Vogt IV
CEO
ArborHost
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