User`s guide

24 007-4274-001
2: Baseboard Description
PCI features include:
•33or66MHzbusspeed
32-bit or 64-bit memory addressing
3.3 V or 5 V signaling environment
Independent bus structure supports transfers up to 1.2 GB/sec.
8-, 16-, 32-, or 64-bit data transfers
Plug-and-Play ready
•Parityenabled
DesotoE2 Hot-Plug PCI Controller
Note: At this time, the Linux operating system does not support use of the PCI Hot-Plug
(PHP) feature. If you are running Linux, your system must be turned off before installing
or removing PCI boards. Windows 2000 requires drivers that are PHP compatible in
order to use the PHP feature.
The DesotoE2 Hot-Plug PCI controller is a 32-bit PCI bus agent that operates at either 33
or 66 MHz. The PCI controller manages PHP functionality for the PCI segment it resides
on. There is a DesotoE2 controller on PCI segments A and B. The DesotoE2 PHP
controller is:
ACPI compliant
Compatible with Compaq's PHP controller design
Supports either a 3.3 V or 5 V PCI bus
Green blinking
Amber Off
Slot power is transitioning from either ON to
OFF or OFF to ON.
Off The slot is powered off.
Table 2-2 Slot State Indicators
LED State Status