Differences in 100-pin printer memory DIMMs
My HP Color LaserJet CM1017 (CB395A) claims, according to all online documentation I can find, to take 100-pin non-DDR SDRAM. Upon ordering and trying to install the RAM, I found the notches don't line up. Here's the differences, with photo evidence. Phooey.
SDRAM pin/notch spacing: 6 pins, right notch, 16 pins, centered notch, 28 pins
DDR pin/notch spacing: 6 pins, right notch, 16 pins, right notch, 28 pins