HP Integrity rx8640 and HP 9000 rp8440 Servers Installation Guide

The cell boards are located on the right side of the server behind a removable side cover. For rack
mounted servers on slides, the rack front door requires removal if it is hinged on the right side of
the rack. Removal will allow unrestricted access to server sides after sliding server out for service..
The two redundant core I/O cards are positioned vertically end-to-end at the rear of the chassis.
Redundant line cords attach to the AC power receptacles at the bottom rear. Two 20-amp cords
are required to power the server. Two additional line cords provide redundancy.
Access the system backplane by removing the left side cover. The system backplane hinges from
the lower edge and is anchored at the top with a single large jack screw assembly.
The SCSI ribbon cable assembly also routes across and fastens to the backside of the system
backplane near the connectors that attach the core I/O boards.
The blue deployment handles hinge outward for manual lift. When server is slide mounted, they
retract against chassis to enable slide action without obstruction.
Front Panel
Front Panel Indicators and Controls
The front panel, located on the front of the server, includes the power switch. See Figure 4.
Enclosure Status LEDs
The following status LEDs are on the front panel:
• Locate LED (blue)
• Power LED (tricolor)
• Management processor (MP) status LED (tricolor)
• Cell 0, 1, 2, 3 status (tricolor) LEDs
Figure 4 Front Panel LEDs and Power Switch
Cell Board
The cell board, illustrated in Figure 5, contains the processors, main memory, and the CC application
specific integrated circuit (ASIC) which interfaces the processors and memory with the I/O. The
CC is the heart of the cell board, providing a crossbar connection that enables communication
with other cell boards in the system. It connects to the processor dependent hardware (PDH) and
microcontroller hardware. Each cell board holds up to four processor modules and 16 memory
DIMMs. One to four cell boards can be installed in the server. A cell board can be selectively
powered off for adding processors, memory or maintenance of the cell board, without affecting
cells in other configured partitions.
Detailed Server Description 11