Vram configurations, Cache configurations – Apple Power Macintosh 7600/200 Series User Manual
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VRAM configurations
Video RAM (VRAM), like standard DRAM, is also provided in DIMMs.
Your computer comes with 2 MB of VRAM installed in two 1 MB DIMMs.
(These DIMMs are installed in the two bank 1 slots.) Your computer’s VRAM
can be expanded to a maximum of 4 MB by adding two 1 MB DIMMs to the
two bank 2 slots. Both DIMMs must be added at the same time.
IMPORTANT
The VRAM DIMMs must be 32-bit wide, 112-pin fast-paged
mode with 70-ns RAM access time or faster. Do not use the 256K or 512K
VRAM SIMMs used in older Macintosh computers.
Cache configurations
Your computer comes with a cache module already installed. To find out the
exact size of the included cache module, see the “Memory” section in your
Technical Information booklet.
You can replace the existing cache module with a larger one. Cache modules
are currently available from third-party manufacturers in various sizes up to
1 MB. However, Apple recommends that you use an Apple-brand cache
module if you want to upgrade your existing cache.
107
Installing PCI Expansion Cards and Additional Memory