IBM Flex System p24L, p260 and p460 Compute Nodes
10
Memory features
IBM DDR3 memory is compatibility tested and tuned for optimal performance and throughput. IBM
memory specifications are integrated into the light path diagnostics for immediate system performance
feedback and optimum system uptime. From a service and support standpoint, IBM memory
automatically assumes the IBM system warranty, and IBM provides service and support worldwide.
The compute nodes support low profile (LP) or very low profile (VLP) DDR3 memory RDIMMs. If LP
memory is used, 2.5-inch HDDs are not supported in the system due to physical space restrictions.
However, 1.8-inch SSDs are still supported. If VLP memory is used, either 2.5-inch HDDs or 1.8-inch
SSDs are supported.
The p260 and p24L supports up to 16 DIMMs. The p460 supports up to 32 DIMMs. Each processor has
four memory channels, and there are two DIMMs per channel. All supported DIMMs operate at 1066 MHz.
The following table lists memory features available for the compute nodes. DIMMs are ordered and can
be installed two at a time, but to maximize memory performance, install them in sets of eight (one for
each of the memory channels).
Table 3. Memory features
Feature
code
Description
Form
factor*
p24L
7FL
p260
22X
p260
23A
p260
23X
p460
42X
p460
43X
p270
24X
EM04*
2x 2 GB DDR3 RDIMM 1066 MHz
LP
Yes
Yes
No
No
Yes
No
No
8196
2x 4 GB DDR3 RDIMM 1066 MHz
VLP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
8199
2x 8 GB DDR3 RDIMM 1066 MHz
VLP
Yes
Yes
No
No
Yes
No
No
EEMD
2x 8 GB DDR3 RDIMM 1066 MHz
VLP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
8145*
2x 16 GB DDR3 RDIMM 1066 MHz
LP
Yes
Yes
No
No
Yes
No
No
EEME*
2x 16 GB DDR3 RDIMM 1066 MHz
LP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
EEMF*
2x 32 GB DDR3 RDIMM 1066 MHz
LP
Yes
Yes
Yes
Yes
Yes
Yes
Yes
* If 2.5-inch HDDs are installed, low-profile DIMM features cannot be used - EM04, 8145, EEME and EEMF cannot
be used.
