Mirroring Population Rules; Figure 43. Memory Population For Mirroring - Intel S7000FC4UR Technical Product Specification

BIOS Initialization
14.2.6

Mirroring Population Rules

Memory mirroring relies on the dual-channel mode of operation with both branches enabled.
The two branches provide mirror copies of each other for redundancy. Therefore, the system
must operate in dual-channel mode with an identical memory configuration between channels
on one branch (for dual-channel operation) and an identical memory configuration between
branches (for mirror support).
This configuration:
The minimal mirroring configuration is identical FBDIMMs installed in the DIMM_1 slot of
all four memory riser boards. The user can populate additional slots to increase system
memory as desired.
FBDIMMs installed in identically numbered DIMM slots on ALL memory riser boards
must be identical in organization, size, and speed for dual-channel operation.
The User must Configure Memory RAS to Mirroring in BIOS Setup.
Branch 0 (Memory Riser Boards A and B) is mirrored with Branch 1 (Memory Riser
Boards C and D).
Note: The BIOS Setup Memory page displays the state of the FBDIMMs. See Section 15.2.
122
Mirror Domain 0
Memory
Memory
Riser
Riser
B
A
DIMM 8
DIMM 8
DIMM 7
DIMM 7
DIMM 6
DIMM 6
DIMM 5
DIMM 5
DIMM 4
DIMM 4
DIMM 3 DIMM 3
DIMM 2
DIMM 2
DIMM 1
DIMM 1
Channel 0 Channel 1
Branch 0
Intel® Chipset
Memory Controller Hub

Figure 43. Memory Population for Mirroring

Intel® Server System S7000FC4UR
Mirror Domain 1
Memory Memory
Riser Riser
C D
DIMM 8 DIMM 8
DIMM 7 DIMM 7
DIMM 6 DIMM 6
DIMM 5 DIMM 5
DIMM 4 DIMM 4
DIMM 3 DIMM 3
DIMM 2 DIMM 2
DIMM 1 DIMM 1
Channel 2 Channel 3
Branch 1
Revision 1.0