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PCI Adapter Options
Your system has ten PCI adapter slots in which you can install adapters. When you
install or remove adapters, refer to the procedures in this section. Some adapters can
be installed while the system power is on. These adapters are referred to as
hot-pluggable PCI adapters. The system has light emitting diodes (LEDs), which are
visible from the rear of the system, to identify the state of a PCI slot during hot-plug
procedures. One LED (1) is associated with each PCI slot (2), as shown in the following
diagram. The slot LEDs are also visible from inside the system unit when the left cover
is removed.
PCI Slot LED Definitions
The following table describes the possible states of the LEDs associated with the PCI
slots. These LEDs are visible from the rear or from inside of the system unit.
LED Indication
Off
On (not flashing)
Flashing slowly (one flash per
second)
Flashing rapidly (six to eight
flashes per second)
328
Service Guide
1
PCI Slot State
Off
On
Identify
Action
12
11
10
9
8
7
6
5
4
3
2
1
Definition
Slot power is off. It is safe to remove or
replace an adapter.
Slot power is on. Do not remove or
replace an adapter.
Indicates slot has been identified by the
software. Do not remove or replace an
adapter at this time.
Indicates slot is ready for removing or
replacing an adapter.
2
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