IBM BladeCenter HS23E, Руководство пользователя

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IBM BladeCenter HS23E 12
The following rules apply when selecting the memory configuration:
The server supports RDIMMs.

Mixing 1.5 V and 1.35 V DIMMs in the server is supported. In such a case, all operate at 1.5 V.

The maximum number of ranks supported per channel is eight.

The maximum quantity of DIMMs that can be installed in a server depends on the number of

processors (six DIMMs with one processor installed, 12 DIMMs with two processors installed).
All DIMMs in all processor memory channels operate at the same speed, which is determined as the

lowest value of:
Memory speed supported by specific processor

Lowest maximum operating speed for the selected memory configuration that depends on rated

speed, as shown under the "Maximum operating speed" section in Table 7.
Table 7. Maximum memory speeds
Specification RDIMM
Rank Single rank Dual rank Quad rank
Part numbers 46C0560 (2 GB)
46C0563 (4 GB)
00D4981 (8 GB)
90Y3147 (4GB)
00D4989 (8GB)
46C0564 (4GB)
46C0568 (8GB 2Rx4)
00D4985 (8GB 2Rx8)
46C0599 (16GB)
90Y3148 (4GB)
90Y3149 (8GB 2Rx4)
00D4993 (8GB 2Rx8)
90Y3221 (16 GB)
Rated speed 1333 MHz 1600 MHz 1333 MHz 1600 MHz 1066 MHz
Rated voltage 1.35 V 1.5 V 1.35 V 1.5 V 1.35 V
Operating voltage 1.35 V 1.5 V 1.5 V 1.35 V 1.5 V 1.5 V 1.35 V 1.5 V
Max quantity* 12 12 12 12 12 12 12 12
Largest DIMM 8 GB 8 GB 8 GB 16 GB 16 GB 8 GB 16 GB 16 GB
Max memory
capacity
96 GB 96 GB 96 GB 192 GB 192 GB 96 GB 192 GB 192 GB
Max memory
at rated speed
96 GB 96 GB 96 GB 192 GB 192 GB 96 GB None None
Maximum operating speed (MHz)
1 DIMM
per channel
1333 MHz 1333 MHz 1600 MHz 1333 MHz 1333 MHz 1600 MHz 800 MHz 800 MHz
2 DIMMs
per channel
1333 MHz 1333 MHz 1600 MHz 1333 MHz 1333 MHz 1600 MHz 800 MHz 800 MHz
* Maximum quantity supported is shown for two processors installed. When one processor installed, the maximum
quantity supported is half of what is shown.
The following memory protection technologies are supported:
ECC

Chipkill (for x4-based memory DIMMs)

Memory mirroring

Memory rank sparing

Chipkill works only in independent channel mode (default operational mode) and supports only x4-based
memory DIMMs.
If memory mirroring is used, then DIMMs must be installed in pairs (a minimum of one pair per each
processor, a maximum of two pairs per processor), and both DIMMs in a pair must be identical in type and
size. The effective memory available to the system is only half of that installed.