HP ProLiant DL360 G6 Server - Manual (Page 40)

Hardware options installation 40
DIMM identification
To determine DIMM characteristics, use the label attached to the DIMM and the following illustration and
table.
Item Description Definition
1 Size —
2
Rank 1R = Single-rank
2R = Dual-rank
4R = Quad-rank
3 Data width x4 = 4-bit
x8 = 8-bit
4 Voltage rating L = Low voltage (1.35v)
Blank or omitted = Standard
5 Memory speed 10600 = 1333-MHz
8500 = 1066-MHz
6 DIMM type R = RDIMM (registered)
E = UDIMM (unbuffered with ECC)
For the latest supported memory information, see the QuickSpecs on the HP website ( http://www.hp.com ).
Memory configurations
To optimize server availability, the server supports the following AMP modes:
• Advanced ECC—provides the greatest memory capacity for a given DIMM size, while providing up to
4-bit error correction. This mode is the default option for this server.
• Mirrored Memory—provides maximum protection against failed DIMMs. Uncorrectable errors in one
channel are corrected by the mirror channel.
• Lockstep—provides enhanced protection while making all installed memory available to the operating
system. The server can continue to function if a single- or multi-bit memory failure within a single DRAM
device occurs.