No, it's not required for a system to match the exact number of memory channels with memory slots.
No, it's not required for a system to match the exact number of memory channels with memory slots.
Some mobos wont keep BIOS settings if you have 2 dimms in single channel. i was having problems and needed to reset the bios every time to troubleshoot my [problem.
All consumer CPUs (LGA1151, 1200, AM4 with PGA1331) support two memory channels. Adding four sticks would imply two dimms per channel, which wouldn't significantly boost bandwidth and likely wouldn't improve performance much.
Well, yes and no. There is a very slight performance increase because the tested two stick configuration (2x8GB) is still single rank, if you were to use say 2x16GB, so two dual rank modules, you'd see no difference by adding two more 16GB sticks. But still, it's good that you pointed that out to see the difference between single and dual rank, however small it might be.
I recall him discussing it, but it sounds quite unclear. He mentioned dual rank performs well on Zen 2, though I’m uncertain about the clock speeds. If I had to estimate, a 2x16GB with 3600MHz should likely work on most Zen 2 IMCs, including entry-level B550/X570 boards. However, 4x16GB seems less feasible. It probably made me rewatch his video then, haha.