Compaq 850 manual Cable Lock Provision, 1.4 I/O Interface Security, Power Management

Chapter 4 System Support

4.7.1.3Cable Lock Provision

These systems include a chassis cutout (on the rear panel) for the attachment of a cable lock mechanism.

4.7.1.4I/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

4-32Compaq Deskpro EXS and Workstation 300 Personal Computers Featuring the Intel Pentium 4 Processor

First Edition - December 2000