Compaq W4000 Manual De Usuario

Chapter 7  BIOS ROM 

 

When a time-out timer expires, Standby for that timer occurs.  

System Standby  

 
When the system acquires the Standby mode the BIOS blanks the screen.  Since the hard 
drive inactivity timer is in the drive and triggered by drive access, the system can be in 
Standby with the hard drives still spinning (awake).  
 

NOTE: The BIOS does not turn the fan(s) off (as on previous products).  

IDE Hard Drive Standby  

 
During hard drive standby the platters stop spinning. Depending on drive type, some hard drives 
will also cut power to some of the drive electronics that are not needed. The drives can be in this 
state with the system still awake.  

 
Suspend is not supported in the Independent PM mode.  

 
When the system is turned Off but still plugged into a live AC outlet the NIC, ICH2, and I/O 
components continue to receive auxiliary power in order to power-up as the result of a Magic 
Packet™ being received over a network. Some NICs are able to wake up a system from Standby 
in PM, most require their Windows/NT driver to reset them after one wake-up.  
 

Activity of either of the following devices will cause the system to wake up with the screen 
restored: 

 

♦  Keyboard  
♦  Mouse (if driver installed)  

 

The hard drive will not spin up until it is accessed.  Any hard drive access will cause it to wake up 
and resume spinning. Since the BIOS returns to the currently running software, it is possible for 
the drive to spin up while the system is in Standby with the screen blanked.  

 

 

 

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