Do not mix R-DIMMs and LR-DIMMs.
Mixing R-DIMMs and LR-DIMMs will cause memory error
and status indicator light will flash when you turn on your computer.
R-DIMM capacities: 8GB, 16GB and 32GB
LR-DIMM capacities: 64GB
Memory installation guide*
4 modules- Use memory slots 3, 5, 8 and 10
6 modules- Use memory slots 1,3,5,8,10 and 12
8 modules- Use memory slots 3,4,5,6,7,8,9 and 10
12 modules- Use all 12 memory slots
* Slot images can be found on the inside of the DIMM covers.
Installing mixed capacity modules:
Install DIMMs in identical pairs from smallest to largest capacity in
order of the memory channels.
Channel 1: Slots 5 and 8
Channel 2: Slots 3 and 10
Channel 3: Slots 1 and 12
Channel 4: Slots 6 and 7
Channel 5: Slots 4 and 9
Channel 6: Slots 2 and 11
