1-8 System Overview
K – Hot Plug PCI slots Ten Hot Plug PCI connectors. Eight 64-bit PCI connectors and two
32-bit PCI connectors. Hot Plug PCI slot functionality depends on
the type of operating system support. Please note that without PCI
Hot Plug operating support you cannot replace PCI boards while
the server is turned on.
L – Power supplies Up to three power supplies in the BSU chassis. One standard
power supply for a four CPU configuration. Two power supplies are
standard for an eight CPU configuration. When an additional power
supply is installed, both the standard and additional redundant
power supplies become hot swappable. Each supply has three
status LEDs. Refer to Table 1-3 for information on power supply
status LEDs.
M – DEU (standard on
tower-based system)
Supports up to eight SCSI SCA hard disk drives.
N – SCSI 1 Ultra 160/m SCSI interface.
O – SCSI 2 Slot for second SCSI connector when configured for two channels
with the AZA-2804 board mounted.
P – Fan3 error LED Indicates fan associated with PSU 1 failed.
Q – Fan1 error LED Indicates fan associated with PSU 2 failed.
R – Fan4 error LED Indicates fan associated with PSU 1 failed.
S – Fan2 error LED Indicates fan associated with PSU 2 failed.
T – Power supplies Up to two power supplies in the DEU chassis. One standard power
supply with one bay available for an additional redundant power
supply. When an additional power supply is installed, both the
standard and redundant power supply bay become hot swappable.
U – DC power on LED Lights in green when DC power is on. When LED is off system
power is off or power supply failed.
V – Power connector There is a separate AC input power connector on each power
supply in the DEU chassis.
W – Power connectors There is a separate AC input power connector for each power
supply in the BSU chassis.
Figure 1-4. Rear Chassis Features and Controls