HP ProLiant DL740 Server - Manual (Page 103)

Installing Hardware Options, Hot-Plug
The ProLiant DL740 server has eight memory banks, each consisting of five DIMMs
installed across the five memory cartridges. Similar DIMMs are installed in bank
pairs (1+2, 3+4, 5+6, 7+8) for memory interleaving to increase performance.
NOTE: For more information, refer to the memory cartridge covers or DIMM installation
guidelines later in this chapter.
Memory Cartridge Requirements
The following requirements are the minimum Hot Plug RAID Memory configuration
requirements:
• Five cartridges must be installed.
• All five cartridges must have the same configuration and type of DIMMs
installed for redundancy (refer to the diagram on the cartridge cover).
IMPORTANT: The server will run in non-RAID memory configuration mode if all the DIMM
sockets in cartridge five are empty.
• All DIMMs must be supported by the system (refer to QuickSpecs).
• All DIMMs in a bank pair must be same speed, type, and size. They should have
the same part number (for example 123456-12x, where x is not required to
match).
The following additional guidelines apply to DIMM installation:
• DIMM configurations must match in all five cartridges (DIMM similarity and
socket).
• Similar DIMMs or no DIMMs must be installed in bank pair order (1+2, then
3+4, then 5+6, then 7+8).
IMPORTANT: POST requires all minimum memory requirements to be met before an
operating system load is permitted, with the exception of a nonredundant configuration. DIMM
configuration errors will be reported by two long beeps, video, or DIMM status LEDs.
5-4 HP ProLiant DL740 Server User Guide
HP CONFIDENTIAL
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