Wake Up Events - HP Compaq dc7600 MT Technical Reference Manual
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Also See for Compaq dc7600 MT:
- User manuals (22 pages) ,
- Supplementary manual (2 pages) ,
- Hardware reference manual (69 pages)
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Power LED Indications
A dual-color LED located on the front panel (bezel) is used to indicate system power status. The
front panel (bezel) power LED provides a visual indication of key system conditions listed as
follows:
Power LED
Steady green
Blinks green @ 0.5 Hz
Blinks red 2 times @ 1 Hz [1]
Blinks red 3 times @ 1 Hz [1]
nks red 4 times @ 1 Hz [1]
Bli
Blinks red 5 times @ 1 Hz [1]
Blinks red 6 times @ 1 Hz [1]
Blinks red 7 times @ 1 Hz [1]
Blinks red 8 times @ 1 Hz [1]
Blinks red 9 times @ 1 Hz [1]
Blinks red 10 times @ 1 Hz [1]
No light
NOTE:
[1] Will be accompanied by the same number of beeps, with 2-second pause between cycles. Beeps
stop after 5 cycles.
Wake Up Events
The PS On signal can be activated with a power "wake-up" of the system due to the occurrence
of a magic packet, serial port ring, or PCI power management event (PME). These events can be
individually enabled through the Setup utility to wake up the system from a sleep (low power)
state.
✎
Wake-up functionality requires that certain circuits receive auxiliary power while the system is
turned off. The system unit must be plugged into a live AC outlet for wake up events to function.
Using an AC power strip to control system unit power will disable wake-up event functionality.
Technical Reference Guide
Condition
Normal full-on operation
Suspend state (S1) or suspend to RAM (S3)
Processor thermal shut down. Check air flow, fan
operation, and CPU heat sink.
Processor not installed. Install or reseat CPU.
Power failure (power supply is overloaded). Check voltage
selector (if applicable), stroage devices, expansion cards
and/or system board.
Pre-video memory error. Incompatible or incorrectly seated
DIMM.
Pre-video graphics error. On system with integrated
graphics, check/replace system board. On system with
graphics card, check/replace graphics card.
PCA failure. Check/replace system board.
Invalid ROM (checksum error). Reflash ROM using CD or
replace system board.
System powers on but fails to boot. Check power supply,
CPU, system board.
Bad option card.
System dead. Press and hold power button for less than 4
seconds. If HD LED turns green then check voltage select
switch setting or expansion cards. If no LED light then check
power button/power supply cables to system board or
system board.
www.hp.com
Power and Signal Distribution
7-5
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