The memory subsystem may be populated with either RDIMMs or UDIMMs, but mixing th
supported. To determine
e two types is not
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 Memory speed 10600 = 1333-MHz
8500 = 1067-MHz
5 DIMM type R = RD
E = UD
IMM (registered)
IMM (unbuffered with ECC)
For the latest supported memory information, see the QuickSpecs on the HP website
(
http://www.hp.com).
Memo
To optimize server availability, the server supports the following AMP modes:
given DIMM size, while providing up
e. This mode is the default option for
a
SU. If the requested AMP mode is not
pp oots in Advanced ECC mode. For more
p Utility" on page 30)."
ry configurations
• Advanced ECC—provides the greatest memory capacity for a
to 8-bit error correction, depending on the specific DIMM typ
this server.
• Lockstep—provides enhanced protection while making all installed memory available to the
operating system. The server can continue to function if a single- or mulit-bit memory failure within
single DRAM device occurs.
Advanced Memory Protection options are configured in RB
su orted by the installed DIMM configuration, the server b
information, see "
HP ROM-Based Setup Utility ("ROM-Based Setu
Hardware options installation 20
