Dell POWEREDGE M915 - Manual (Page 202)

202 Installing Blade Components
Independent Channel Mode (Optimizer Mode) – PowerEdge M610/M610x
In this mode, all three channels are populated with identical memory
modules. This mode permits a larger total memory capacity, but does not
support the reliability features of the other modes. To enable this mode,
select the Optimizer option on the Memory Settings screen of the System
Setup program. See "Memory Settings Screen" on page 140. A minimal
single-channel configuration of one 1 GB memory module per processor is
also supported in this mode.
Table 3-10. Examples of PowerEdge M610/M610x Memory Configurations
Total
Physical
Memory Memory Modules
– Number and
Type Memory Module
Locations Processors Memory
Mode
Available
Memory
1 GB One 1 GB
UDIMM
A1 One Independent
channel
1 GB
2 GB Two 1 GB
UDIMMs
A2, A3 One Advanced
ECC or
mirroring
1 GB
2 GB Two 1 GB
UDIMMs
A1, B1 Two Independent
channel
2 GB
4 GB Two 2 GB
UDIMMs
A2, A3 One Mirroring 2 GB
4 GB Two 2 GB
UDIMMs
A2, A3 One Advanced
ECC
4 GB
4 GB Four 1 GB
UDIMMs
A2, A3, B2, B3 Two Mirroring 2 GB
4 GB Four 1 GB
UDIMMs
A2, A3, B2, B3 Two Advanced
ECC
4 GB
6 GB Six 1 GB
UDIMMs
A1, A2, A3, B1,
B2, B3
Two Independent
channel
6 GB
6 GB Three 2 GB
UDIMMs
A1, A2, A3 One Independent
channel
6 GB
8 GB Four 2 GB
UDIMMs
A2, A3, B2, B3 Two Mirroring 4 GB