Originally posted by: addragyn
That's basically correct, Apple machines just require that the memory has SPD correctly programmed into it. Some cheaper sticks do not. Quality stuff will work. This is a quality control issue.
I've not kept up with the current state-of-the-art in terms of Mac low-level hardware, but do they even have the capability to vary the various chipset-level memory timing parameters? They may require memory with specific timings/capabilities (or specific SPD programming info), as you mention.
Do the Macs even have a "BIOS setup" program, per se? The last time that I messed about with PRAM setting on a Mac, was on a Classic SE or an LC Color model. Guess I should update my Mac knowledge, even though they only have like 3% of the PC market-share these days.
;Course, when buying memory in general, even for PCs, I personally try to stick to the big name-brands for quality anyways. Generic RAM is usually the pits.