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HTCA-6400 User Manual
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Installing System Memory
The motherboard supports 16 memory slots for DDR4 registered DIMM.
Supported System Memory Summary
Total Slots 16 (8 slots per processor)
Number of Channels 6 Channels (4 for 1 Dimm per Channel, and 2 for 2 Dimm per Channel)
Supported DIMM Capacity 4GB, 8GB, 16GB, 32GB
Memory Size Maximum 512 GB RDIMM (32GB*16)
Memory Type DDR4 RDIMM/ECC DIMM depending on CPU sku
Minimum DIMM Installed Each processor requires at least 1 memory modules to boot and run from.
Primary CPU Secondary CPU
4 4 4 4