Dimm Rank Classification Labels - Sun Oracle Sun Fire X4270 M2 Service Manual

4.2.3

DIMM Rank Classification Labels

DIMMs come in a variety of ranks: single, dual, or quad. Each DIMM is shipped
a label identifying its rank classification.
classification label shipped with each DIMM.
TABLE 4-3
Rank Classification
Quad-rank DIMM
Dual-rank DIMM
Single-rank DIMM
4.2.4 Locations of Faulty DIMMs Using ILOM Versus
BIOS
ILOM and BIOS use different formats to identify the location of a faulty DIMM.
For ILOM, the format is Px/Dx, where x is 0 or 1 for CPUs, and 0 to 8 for DIMMs.
■
For BIOS, the format is CPUx/CHANNELx/DIMMx, where x is 0 or 1 for CPUs,
■
and 0 to 2 for channels and DIMMs.
TABLE 4-4
BIOS.
TABLE 4-4
ILOM Mapping
for CPU0
P0/D0
P0/D1
P0/D2
P0/D3
P0/D4
P0/D5
P0/D6
P0/D7
P0/D8
DIMM Classification Labels
Label
4Rx4
2Rx4
1Rx4
shows the mapping of faulty DIMM locations as reported by ILOM and
Mapping of Faulty DIMM Locations for ILOM and BIOS
BIOS Mapping for CPU0
CPU0/CHANNEL0/DIMM0
CPU0/CHANNEL0/DIMM1
CPU0/CHANNEL0/DIMM2
CPU0/CHANNEL1/DIMM0
CPU0/CHANNEL1/DIMM1
CPU0/CHANNEL1/DIMM2
CPU0/CHANNEL2/DIMM0
CPU0/CHANNEL2/DIMM1
CPU0/CHANNEL2/DIMM2
identifies the corresponding
TABLE 4-3
ILOM Mapping
for CPU1 BIOS Mapping for CPU1
P1/D0 CPU1/CHANNEL0/DIMM0
P1/D1 CPU1/CHANNEL0/DIMM1
P1/D2 CPU1/CHANNEL0/DIMM2
P1/D3 CPU1/CHANNEL1/DIMM0
P1/D4 CPU1/CHANNEL1/DIMM1
P1/D5 CPU1/CHANNEL1/DIMM2
P1/D6 CPU1/CHANNEL2/DIMM0
P1/D7 CPU1/CHANNEL2/DIMM1
P1/D8 CPU1/CHANNEL2/DIMM2
Chapter 4 Servicing Motherboard Components
with
rank
4-7