HP Integrity rx2800 Installation Guide - Page 15

Memory Subsystem, Cooling subsystem, Power Subsystem, Hard drive subsystem, Firmware, Controller BMC.

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Memory Subsystem The server supports up to 24 memory DIMMs that attach to the system board through four memory riser boards (six DIMMs per board). The minimum amount of memory supported is 4 GB (two 2-GB DIMMs). The maximum amount of memory supported is 192 GB (twenty-four 8-GB DIMMs). The supported DIMMs are industry-standard, 30 mm (1.18 in) high, DDR3 PC3 DIMMs. Hot-spare and hot-plug functionality is not supported. The server supports the following DIMM sizes: • 2 GB • 4 GB • 8 GB Future release Cooling subsystem Six fans cool the server. The fans are all redundant, hot-swappable, and interchangeable. If one fan unit fails, the others increase speed to compensate for the failure. The fan units are N+1, meaning that the server has 6 fan units, but can operate with 5 fan units running. Figure 1-4 Fan identification The power supplies have built-in fans and are not controlled by the Baseboard Management Controller (BMC). Power Subsystem The server supports 1+1 redundant power supply for high line (1200W/200~240VAC) in the data center and office friendly server versions. The server does not support redundancy at low line (800W/100~120VAC). The server also supports power capping. Hard drive subsystem The server supports up to eight small form factor (SFF), 2.5 in. serial-attached SCSI (SAS) hard drives. Each drive is equipped with two LEDs that indicate activity and device status. Firmware Firmware consists of many individually linked binary images that are bound together by a single framework at run time. Internally, the firmware employs a software database called a device tree to represent the structure of the hardware platform and to provide a means of associating software elements with hardware functionality. Server subsystems 15

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Memory Subsystem
The server supports up to 24 memory DIMMs that attach to the system board through four
memory riser boards (six DIMMs per board). The minimum amount of memory supported is 4
GB (two 2-GB DIMMs). The maximum amount of memory supported is 192 GB (twenty-four
8-GB DIMMs). The supported DIMMs are industry-standard, 30 mm (1.18 in) high, DDR3 PC3
DIMMs. Hot-spare and hot-plug functionality is not supported.
The server supports the following DIMM sizes:
•
2 GB
•
4 GB
•
8 GB
Future release
Cooling subsystem
Six fans cool the server. The fans are all redundant, hot-swappable, and interchangeable. If one
fan unit fails, the others increase speed to compensate for the failure. The fan units are N+1,
meaning that the server has 6 fan units, but can operate with 5 fan units running.
Figure 1-4 Fan identification
The power supplies have built-in fans and are not controlled by the Baseboard Management
Controller (BMC).
Power Subsystem
The server supports 1+1 redundant power supply for high line (1200W/200~240VAC) in the data
center and office friendly server versions. The server does not support redundancy at low line
(800W/100~120VAC). The server also supports power capping.
Hard drive subsystem
The server supports up to eight small form factor (SFF), 2.5 in. serial-attached SCSI (SAS) hard
drives. Each drive is equipped with two LEDs that indicate activity and device status.
Firmware
Firmware consists of many individually linked binary images that are bound together by a single
framework at run time. Internally, the firmware employs a software database called a device
tree to represent the structure of the hardware platform and to provide a means of associating
software elements with hardware functionality.
Server subsystems
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