Manual

Hardware options installation 29
Memory subsystem architecture
The memory subsystem in this server blade is divided into channels. Each processor supports four
channels, and each channel supports two DIMM slots, as shown in the following table.
Channel Slot Slot number
1
A
E
1
2
2
C
G
3
4
3
B
F
5
6
4
D
H
7
8
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