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Chapter 4 System Support
Compaq Deskpro EXS and Workstation 300 Personal Computers
Featuring the Intel Pentium 4 Processor
First Edition - December 2000
4-32
4.7.1.3 Cable Lock Provision
These systems include a chassis cutout (on the rear panel) for the attachment of a cable lock
mechanism.
4.7.1.4 I/O Interface Security
The serial, parallel, USB, and diskette interfaces may be disabled individually through the Setup
utility to guard against unauthorized access to a system. In addition, the ability to write to or boot
from a removable media drive (such as the diskette drive) may be enabled through the Setup
utility. The disabling of the serial, parallel, and diskette interfaces are a function of the
LPC47B357 I/O controller. The USB ports are controlled through the 82801 ICH.
4.7.2 POWER MANAGEMENT
These systems provide baseline hardware support of ACPI- and APM-compliant firmware and
software. Key power-consuming components (processor, chipset, I/O controller, and fan) can be
placed into a reduced power mode either automatically or by user control. The system can then be
brought back up (“wake-up”) by events defined by the ACPI specification. The ACPI wake-up
events supported by this system are listed as follows:
ACPI Wake-Up Event System Wakes From
Power Button Suspend or soft-off
RTC Alarm Suspend or soft-off
Wake On LAN (w/NIC) Suspend or soft-off
PME Suspend or soft-off
Serial Port Ring Suspend or soft-off
USB Suspend only
Keyboard Suspend only
Mouse Suspend only