IBM Flex System x240 Compute Node Product Manual - page 10
IBM Flex System x240 Compute Node
10
If memory rank sparing is used, then a minimum of one quad-rank DIMM or two single-rank or dual-rank
DIMMs must be installed per populated channel (the DIMMs do not need being identical). In rank sparing
mode, one rank of a DIMM in each populated channel is reserved as spare memory. The size of a rank
varies depending on the DIMMs installed.
The following table lists memory options available for the x240 server. DIMMs can be installed one at a
time, but for performance reasons, install them in sets of four (one for each of the four memory channels).
Table 5. Memory options for the x240
Part number
Description
Models
where used
Registered DIMM (RDIMM) modules
49Y1405
2GB (1x2GB, 1Rx8, 1.35V) PC3L-10600 CL9 ECC DDR3 1333MHz LP RDIMM
-
49Y1406
4GB (1x4GB, 1Rx4, 1.35V) PC3L-10600 CL9 ECC DDR3 1333MHz LP RDIMM
H1x, H2x, G2x,
F2x, D2x, A1x
49Y1407
4GB (1x4GB, 2Rx8, 1.35V) PC3L-10600 CL9 ECC DDR3 1333MHz LP RDIMM
-
49Y1559
4GB (1x4GB, 1Rx4, 1.5V) PC3-12800 CL11 ECC DDR3 1600MHz LP RDIMM
R2x, Q2x, N2x, M2x,
M1x, L2x, J1x
90Y3178
4GB (1x4GB, 2Rx8, 1.5V) PC3-12800 CL11 ECC DDR3 1600MHz LP RDIMM
-
90Y3109
8GB (1x8GB, 2Rx4, 1.5V) PC3-12800 CL11 ECC DDR3 1600MHz LP RDIMM
-
49Y1397
8GB (1x8GB, 2Rx4, 1.35V) PC3L-10600 CL9 ECC DDR3 1333MHz LP RDIMM
-
49Y1563
16GB (1x16GB, 2Rx4, 1.35V) PC3L-10600 CL9 ECC DDR3 1333MHz LP RDIMM
-
49Y1400
16GB (1x16GB, 4Rx4, 1.35V) PC3L-8500 CL7 ECC DDR3 1066MHz LP RDIMM
-
00D4968
16GB (1x16GB, 2Rx4, 1.5V) PC3-12800 CL11 ECC DDR3 1600MHz LP RDIMM
-
Unbuffered DIMM (UDIMM) modules
49Y1404
4GB (1x4GB, 2Rx8, 1.35V) PC3L-10600 CL9 ECC DDR3 1333MHz LP UDIMM
-
Load-reduced (LRDIMM) modules
49Y1567
16GB (1x16GB, 4Rx4, 1.35V) PC3L-10600 CL9 ECC DDR3 1333MHz LP LRDIMM
-
90Y3105
32GB (1x32GB, 4Rx4, 1.35V) PC3L-10600 CL9 ECC DDR3 1333MHz LP LRDIMM
-
Internal disk storage options
The x240 server has two 2.5" hot-swap drive bays accessible from the front of the blade server (Figure 2).
These bays are connected to the integrated 4-port LSI SAS2004 6 Gbps SAS/SATA RAID-on-Chip (ROC)
controller.
The integrated LSI SAS2004 ROC has the following features:
Four-port controller with 6 Gbps throughput per port
PCIe x4 Gen 2 host interface
Two SAS ports routed internally to the two hot-swap drive bays
Supports RAID levels 0 (Integrated Striping), 1 (Integrated Mirroring), 10 (Integrated Mirroring and
Striping), and 1E (Integrated Mirroring Enhanced)