Hardware options installation 33
•
DIMM configuration on channel 1 and channel 2 of a processor must be identical.
•
In multi-processor configurations, each processor must have a valid Lockstep Memory configuration.
•
In multi-processor configurations, each processor may have a different valid Lockstep Memory
configuration.
Single-processor Lockstep population order
For Lockstep memory mode configurations with a single processor, populate the DIMM slots in the following
order:
•
RDIMM
o
First: A and B
o
Next: D and E
o
Do not populate slots C or F.
•
UDIMM
o
First: A and B
o
Last: D and E
o
Do not populate slots C or F.
After installing the DIMMs, use RBSU to configure the system for Lockstep memory support ("
Configuring
lockstep memory
" on page
57
).
Multi-processor Lockstep population order
For Lockstep memory mode configurations with multiple processors, populate the DIMM slots for each
processor in the following order:
•
RDIMM
o
First: A and B
o
Next: D and E
o
Do not populate slots C or F.
•
UDIMM
o
First: A and B
o
Last: D and E
o
Do not populate slots C or F.
After installing the DIMMs, use RBSU to configure the system for Lockstep memory support ("
Configuring
lockstep memory
" on page
57
).
Installing a DIMM
CAUTION:
To avoid damage to the hard drives, memory, and other system components, the air
baffle, drive blanks, and access panel must be installed when the server is powered up.
1.
Power down the server ("
Power down the server blade
" on page
12
).
2.
Remove the server blade (on page
13
).
3.
Remove the access panel (on page
14
).
