Acer ConceptD 500 User Manual - Page 13

Memory UPGRADING YOUR COMPUTER - 9 The computer has four DDR4 U-DIMM slots that support up to 64 GB maximum system memory. Memory configuration guidelines  To ensure data integrity, use only Acer-approved DDR4 3200 MHz type memory modules.  Memory modules must be installed starting with DIMM1 slot.  Always handle memory modules by its edges.  When installing memory modules, populate the DIMM slots according to the table below. Size 8GB 8GB 16GB 16GB 16GB 32GB 32GB 64GB 64GB 128GB DIMM1 4GB 8GB 4GB 8GB 16GB 8GB 16GB 16GB 16GB 32GB DIMM2 4GB N/A 4GB 8GB N/A 8GB 16GB 16GB 16GB 32GB DIMM3 N/A N/A 4GB N/A N/A 8GB N/A 16GB 16GB 32GB DIMM4 N/A N/A 4GB N/A N/A 8GB N/A 16GB 16GB 32GB