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Appendix G Component Mounting Conditions
G.2 DIMM
229
C122-E175-01EN
Appendix G Component Mounting
Conditions
This appendix describes the mounting conditions of components for the PRIMEQUEST 2000 series.
G.1 CPU
This section describes the number of CPUs that can be mounted and the criteria for mixing different types of
CPU.
CPU mounting criteria
- SB with one CPU is allowed in only single SB partition. (*1)
- SB with two CPUs is allowed in single SB partition.
- Only SB with two CPUs is allowed in multiple SB partition.
- CPUs must be mounted starting from CPU#0 on the SB.
- If CPU mounting order is wrong, SB becomes to be error.
- An SB with no CPU mounted on it will cause an error.
(*1) For PRIMEQUEST 2800B, only SB with two CPUs is allowed in single SB partition.
The following lists the number of SBs and CPUs per partition for each model.
TABLE G.1 Numbers of SBs and CPUs per partition
Partition
configuration
PRIMEQUEST
2400E
PRIMEQUEST
2800E
PRIMEQUEST
2800B
1 SB
1 or 2
1 or 2
2
2 SB
4
4
4
3 SB
Not supported
6
6
4 SB
Not supported
8
8
CPU mixing condition
- In a partition, all CPUs must have the same frequency, cache size, core number, power, QPI rate, and
scale.
- In a system, CPUs which have different frequency, cache size and core number can be mounted.
G.2 DIMM
This section describes the number of DIMMs that can be mounted and the criteria for mixing different types of
DIMM.
DIMM mounting conditions
- At least two DIMMs are required per CPU.
- Up to 24 DIMMs can be mounted per CPU.
- DIMMs must be mounted in the following units:
In below table, ‘N’ means normal mode or performance mode, ‘M’ means full mirror mode or partial mirror
mode, and ‘S’ means spare mode.
TABLE G.2 DIMM increment unit
DR
PCI address
mode
SB Number
(CPU number)
per
Partition
DIMM increment unit
1CPU/1SB
2CPU/1SB
N
M
S
N
M
S
Disable
Bus
1SB (1CPU) (*1)
2
4
6
N/A
N/A
N/A
1SB (2CPU)
N/A
N/A
N/A
2
4
6