HP ProLiant WS460c G6 Workstation Blade with WS460c Graphics Expansion Blade User Guide

Hardware options installation 43
• Do not install DIMMs in channel 3 for any processor.
• 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 60).
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 60).
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.