Dimm identification, Memory configurations, Dimm identification memory configurations – HP BL2X220C User Manual
Page 24
Hardware options installation 24
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
Memory configurations
To optimize server blade availability, the server blade 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 blade.
•
Mirrored Memory—provides maximum protection against failed DIMMs. Uncorrectable errors in one
channel are corrected by the mirror channel.