Intel S7000FC4UR - Figure 36. Memory Population for Single-Channel Failsafe

Intel® Server System S7000FC4UR TPS BIOS Initialization
Revision 1.0
115
Figure 36. Memory Population for Single-Channel Failsafe
This configuration:
 The FBDIMMs installed in the DIMM_1 sockets on Memory Riser Boards A and B are
not identical in organization, size, and speed.
 Does not meet the requirements for dual-channel mode.
 The BIOS selects the operating mode best matching the requirements of Memory Riser
Board A, DIMM_1 such that it is always enabled. Therefore, the BIOS disables Memory
Riser Board B, DIMM_1 and configures the system for single-channel mode as a
failsafe.
Intel® Chipset
Memory Controller Hub
Branch 0
Channel 0
Channel 1
Branch 1
Channel 2 Channel 3
DIMM 1
DIMM 2
DIMM 3
DIMM
4
DIMM 5
DIMM 6
DIMM 8
Memory
Rise
r
A
DIMM 7
DIMM 1
DIMM 2
DIMM 3
DIMM 4
DIMM 5
DIMM 6
DIMM 8
Memory
Riser
B
DIMM 7
Disabled