Compaq W4000 Manual De Usuario

Chapter 6  Power and Signal Distribution 

 

 

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: 

 

Steady green 

Normal full-on operation 

Blinks green @ 1 Hz 

Suspend state (S1) 

Blinks green @ 2 Hz 

Sleep (suspend to RAM) state (S3) 

Blinks green @ 4 Hz 

Sleep (suspend to disk) state (S4) 

Steady red 

Processor not seated 

Blinks red @ 0.5 Hz 

Power supply crowbar activated 

Blinks red @ 1 Hz 

BIOS ROM error 

Blinks red @ 4 Hz 

Thermal condition: processor has overheated and shut down 

 

 

 
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 (PME) event. These events can be 
individually enabled through the Setup utility to wake up the system from a sleep (low power) 
state.  
 

NOTE:  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 A
will disable wake-up event functionality. 

 

The wake up sequence for each event occurs as follows:   
 

W
 
The network interface controller (NIC) can be configured for detection of a “Magic Packet” and
wake the system up from sleep mode through the assertion of the PME- signal on the PCI bus. 

efer to Chapter 5, “Network Support” for more information. 

 

etected by the power 

ontrol logic and, if so configured, cause the PS On signal to be asserted.  

ause 

he PS On. Note that the PCI card must be PCI ver. 2.2 

compliant to support this function.  

 

 

R
 
M
 
A ring condition on serial port A (COM1) or serial port B (COM2) can be d
c
 
P
 
A power management event that asserts the PME- signal on the PCI bus can be enabled to c
the power control logic to generate t

 

 

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