System Backplane; System Backplane Block Diagram; Removable Media Drive Path; Hard Disk Drive Path - HP Integrity rx8640 Manual

Table 1-4 Removable Media Drive Path
Removable Media
Slot 0 media
Slot 1 media
1 X equals 2 for a DVD drive while X equals 3 for a DDS-4 DAT drive.
Table 1-5 Hard Disk Drive Path
Hard Drive
Slot 0 drive
Slot 1 drive
Slot 2 drive
Slot 3 drive

System Backplane

The system backplane board contains the following components:
• Two crossbar chips (XBC)
• Clock generation logic
• Preset generation logic
• Power regulators
• Two local bus adapter (LBA) chips that create internal PCI buses for communicating with
the core I/O card.
The backplane also contains connectors for attaching the cell boards, PCI-X backplane, MP core
I/O cards SCSI cables, bulk power, chassis fans, front panel display, intrusion switches, and
external system bus adapters (SBA) link connectors.
Figure 1-1 1 System Backplane Block Diagram
Core I/O 0
Core I/O 1
Path
0/0/0/2/1.x
1/0/0/2/1.x
Path
0/0/0/2/0.6.0
0/0/0/3/0.6.0
1/0/0/2/0.6.0
1/0/0/3/0.6.0
System Backplane
LBA
LBA
XBC
1
.0
1
.0
PCI-X Backplane
Cell 0
Cell 1
Cell boards are perpendicular
to the system backplane.
XBC
Cell 2
Cell 3
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