Technical Reference Guide
Compaq Deskpro Personal Computers
Third Edition - April 2001
4-35
4.7.2 POWER MANAGEMENT
This system provides 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
4.7.3 SYSTEM STATUS
These systems provide a visual indication of system boot and ROM flash status through the
keyboard LEDs and operational status using bi-colored power and hard drive activity LEDs as
indicated in Tables 4-15 and 4-16 respectively.
NOTE: The LED indications listed in Table 4-15 are valid only for PS/2-type
keyboards. A USB keyboard will not provide LED status for the listed events, although
audible (beep) indications will occur.
Table 4-15. System Boot/ROM Flash Status LED Indications
Table 4-15.
System Boot/ROM Flash Status LED Indications
Event
NUM Lock
LED
CAPs Lock
LED
Scroll Lock
LED
System memory failure [1] Blinking Off Off
Graphics controller failure [2] Off Blinking Off
System failure prior to graphics cntlr. initialization
[3]
Off Off Blinking
ROMPAQ diskette not present, faulty, or drive prob. On Off Off
Password prompt Off On Off
Invalid ROM detected - flash failed Blinking [4] Blinking [4] Blinking [4]
Keyboard locked in network mode Blinking [5] Blinking [5] Blinking [5]
Successful boot block ROM flash On [6] On [6] On [6]
NOTES:
[1] Accompanied by 1 short, 2 long audio beeps
[2] Accompanied by 1 long, 2 short audio beeps
[3] Accompanied by 2 long, 1 short audio beeps
[4] All LEDs will blink in sync twice, accompanied by 1 long and three short audio beeps
[5] LEDs will blink in sequence (NUM Lock, then CAPs Lock, then Scroll Lock)
[6] Accompanied by rising audio tone.
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