Figure 1-1. I/O Subsystem Block Diagram - HP Integrity rx6600 User's & Service Manual

The I/O subsystem is composed of an I/O board assembly and a core I/O board. Figure 1-1 is a block diagram
of the I/O subsystem.
Figure 1-1 I/O Subsystem Block Diagram
Single - Rope
DMD
DMD
Bridge
ROM
RTC
SRAM
Single - Rope
Single - Rope
Dual - Rope
Dual - Rope
Quad - Rope
Quad - Rope
Single - Rope
The I/O board assembly is serviced from the rear of the chassis and connects through the midplane board to
the processor board. It is mounted on a removable carrier tray that contains six full-length and two
short-length PCI/PCI-X hot-pluggable public slots and two standard PCI/PCI-X private slots. The private
slots are used for the LAN core I/O and SAS core I/O cards. The I/O board assembly also contains the
processor-dependent hardware (PDH) functionality.
The server supports PCI/PCI-X hot-pluggable operations in all the public I/O slots. PCI/PCI-X hot-pluggable
operations enable you to add or remove a PCI/PCI-X card while the server is powered on. Each slot is
physically separated with a divider that contains a card extraction mechanism and a mechanical retention
latch (MRL).
There are four shared PCI/PCI-X slots in the server. The four 66 MHz PCI/PCI-X slots are shared in groups of
two. Shared slots have many speed and mode change restrictions during hot-plug add or remove operations.
For more information on PCI/PCI-X card configuration and restrictions, see "PCI/PCI-X Configurations" on
page 75.
Four of the server PCI/PCI-X slots are not shared. Two of the nonshared slots are 133 MHz PCI/PCI-X, and
two of the slots are 266 MHz PCI/PCI-X.
Chapter 1
USB USB
ZX1 PCI Bridge
I2C
BMC
LPC
TPM
UART
COM
Common Display Panel board
ZX1 PCI-X Bridge
ZX1 PCI-X Bridge
ZX1 PCI-X Bridge
ZX1 PCI-X Bridge
ZX2 PCI-X Bridge
ZX2 PCI-X Bridge
PCIx-66
ZX1 PCI-X Bridge
Common I/O Board
Unified Core I/O Board
USB
USB
32 bit
PCI-33
USB
IPMB
SP Video
VGA
MP LAN
COM
Public PHP I/O Slots
DHPC
PCIx-66
DHPC
PCIx-66
PCIx-133
PCIx-133
PCIx-267
PCIx-267
Core Disk Storage
Private Slots
Core LAN
DVD
Ports From
PORT
Chassis Rear
Ports From
PORT
LAN LAN
Chassis Front
Introduction
I/O
19