Tekmyster - Acer Aspire E1 Error Message Warming!!! DIMM1 and DIMM2's ModuleOrganization is not same, please check it~!! SOLVED: you will need a small phillips head screw driver to complete this task.
DIMM - Wikipedia
An example DDRx SDRAM architecture with 1 DIMM, 2 ranks, and 8 x4 DRAM... | Download Scientific Diagram
ASUS DIMM.2 is an M.2 Riser Card | TechPowerUp
DIMM.2 questions
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DIMM slot 1, 3 or DIMM slot 2, 4? Solved - Windows 10 Forums
Understanding The Difference Between 1 DIMM and 2 DIMM RAM - TechiPark.Com
An example DDRx SDRAM architecture with 1 DIMM, 2 ranks, and 8 x4 DRAM... | Download Scientific Diagram