The Quadra 800 and Apple Workgroup Server 80 have 8 MB of memory on the motherboard and a single bank of four SIMM sockets for memory expansion as far as 136 MB. This was one of the first generation of Macs to use 72-pin SIMMs.
With the rear of the computer away from you, you will see 4 SIMM sockets in the front center of the motherboard.
Each SIMM socket can be filled with a 1 MB, 4 MB, 8 MB, 16 MB, or 32 MB SIMM. You can use different capacities in each bank, but because the Quadra 800 uses a new memory controller that supports interleaving, you should install memory in pairs of matched SIMMs to achieve best performance – 5-10% better, according to Apple. The 72-pin SIMMs must be 60ns or faster.
Special Resource: Dale Adams on Interleaved Memory on Centris 650 & Quadra 800
VRAM, Where More Memory Means Less Speed
The Quadra 800 ships with 512 KB of VRAM on the motherboard. You can upgrade this to 1 MB by installing two 256 KB VRAM SIMMs in the VRAM sockets beneath the floppy drive.
Keywords: #quadra800 #appleworkgroupserver80
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