●
If DIMMs with dif
ferent ranks are installed on one CPU socket, follow
memory module population order.
●
When single-rank, dual-rank and quad-rank DIMMs are populated for 2DPC,
always populate the higher number rank DIMM first (starting from the
farthest slot), for example, first quad-rank, then dual-rank, and last single-
rank DIMM.
●
Assembling DIMMs should start from high to low capacity at first. Example:
32 GB first, then 16 GB and then 8 GB.
●
If only one DIMM is populated in a channel, then populate it in the slot
furthest away from CPU.
The notation of the CPUs, memory channels, and DIMM sockets
correspond to the silk print on system board.
▶
On CPU 1, the memory channels are named A, B, C, D, E, F
▶
On CPU 2, the memory channels are named G, H, J, K, L, M
▶
On CPU 3, the memory channels are named N, P
, Q, R, S, T
▶
On CPU 4, the memory channels are named U, V, W, X, Y, Z
10.2.3 Modes of operation
10.2.3.1 Independent Channel mode
Independent Channel mode with identical DIMMs - 2 CPUs populated
●
Same letter represents identical DIMMs (capacity, rank).
●
Use a "balanced" platform configuration:
– all available memory channels populated equally
– identical DIMMs in all locations (size/speed/rank)
●
Marked (*) quantity of DIMMs are not recommended because of unbalanced
configurations.
●
Unbalanced configurations can lead to significantly reduced bandwidth
because the system will fracture the memory space into multiple regions.
Main memory
RX4770 M5 Upgrade and Maintenance Manual 243
To Next Page
Loading...
Need help?
General