Specifications

To enable PCIe MPS optimization use the ioconfig mps_optimize command. See “ioconfig”
(page 165).
For non-PCIe systems, ioconfig and info io will not display the MPS optimization policy
setting. The Set PCIe MPS Optimization boot manager menu also will not be displayed. Running
the ioconfig mps_optimize [on|off] command from a non-PCIe system, displays the
following output:
-------------
Shell> ioconfig mps_optimize
ioconfig: PCIe MPS optimization is not supported.
Shell> ioconfig mps_optimize on
ioconfig: PCIe MPS optimization is not supported.
Exit status code: Unsupported
Shell>
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To restore MPS to the default values, enter the default clear command.
PCI Expansion Blade
If you need additional PCI-X/PCIe cards for your server blade, you can install a PCI expansion
blade. The PCI expansion blade holds up to one or two PCI-X or PCIe cards. However, you cannot
mix PCI-X and PCIe cards in the PCI expansion blade.
The PCI expansion blade must be installed adjacent to the server blade you are installing for it to
connect to the server blade properly.
For more information about the PCI expansion blade, see http://h18004.www1.hp.com/products/
blades/expansion/index.html?jumpid=reg_R1002_USEN.
Memory Subsystem
The server blade physical memory subsystem includes PC2-4200 Double Data Rate Synchronous
Dynamic Random Access Memory (DDR2 SDRAM) DIMMs, as well as the memory bus traces, and
required termination. The memory subsystem supports only DDR2 SDRAM technology using
industry-standard PC2-4200 DIMMs. The DIMMs use a 184-pin JEDEC standard connector. The
server blade memory subsystem provides two memory cells. Each cell is 144 bits wide (128 bits
of data, 16 bits of ECC), and has six DIMM slots for a total of 12 slots (six DIMMs per cell). All
12 DIMM slots are shared by both processors.
The minimum amount of memory supported in the server blade is 1 GB (two 512-MB DIMMs).
The maximum amount of memory supported in the server blade is 96 GB (twelve 8-GB DIMMs).
The DIMMs used in the server blade are low-profile (1.2” tall) DIMMs. The DIMMs are standard
PC2-4200 registered. Only HP qualified DIMMs are supported.
DIMMs
The memory subsystem supports only DDR2 SDRAM technology utilizing industry-standard 1.2”
high DIMMs. The DIMMs use a 184-pin JEDEC standard connector. You must install the DIMMs
in pairs. To enable chip sparing, install the DIMM in pairs. Both DIMMs must be the same capacity.
Table 4 summarizes the server blade memory configurations.
Table 4 Server Blade Memory Array Capacities
Single DIMM SizesMin / Max Memory Size
512 MB1 GB / 6 GB
1 GB2 GB / 12 GB
Server Blade Components 17