FIC a440 服务手册

 

Hardware Functional Overview 

 

 

FIC A440 Series Service Manual                                                                  4-18 

 
 

+5VS SUSB# 

HDD, CD-ROM, USB, Internal K/B, Glide Pad, External P/S2 Mouse, FDD, Audio 
AMP, BIOS ROM 

 

The System State where no devices are power managed and the system can respond to applications with maximum 
performance. 
 

The CPU clock is slow down and all other devices are full on.  

A suspend state where all motherboard components are powered-off. The CPU/L2 and PCI busses are powered off. All 
devices connected to the CPU/L2 and PCI busses must either be powered-off or isolate their bus interfaces. The system 
memory(include graphics frame buffer) is powered and refreshed by the Memory Bridge. The system provides a 32kHz 
clock (SUSCLK) in this suspend mode to support refresh of these memory subsystems. Only an enabled “resume event” can 
bring the platform out of the Suspend to RAM (STR) state.  
 

A suspend state where the context of the entire system is saved to disk, all motherboard components are powered-off, and all 
clocks are stopped. Any enabled “resume event”, such as PowerBTN or RTC, can bring the platform out of the Suspend to 
disk (STD) state.  
 

This is the same as suspend to disk except the context of memory is not saved.  

  

All power except the RTC has been removed from the system.