Quadra 840AV - wiki

CPU
68040 @ 40.00MHz
FPU onboard
System bus @ 40.00MHz; 32-bit
AT&T DSP3210 @ 66.66MHz

no L2 cache; upgrades?

Memory
none onboard; 128MB max
4 x 72-pin SIMMs, 60ns or faster, interleaving pairs of two when evenly matched (?)

Operates in 32-bit addressing mode. Will not operate in 24-bit addressing mode.

Machine ID: 78

Main logic board - 820-0382-10