보통 power sequence of motherboard 라고 검색하면 좀처럼 마음에 드는 결과물을 얻을수 없다.
결론적으로 보드의 부팅과정을 검색하면 정보가 아직까징 없다.. 쉽게 설명된게 없다..한국말로
일단 ATX파워 생김새를 알아봐야 겠다.
*보통 ATX 파워 검색하면 클립같은것을 파워측 PS_ON과 검은색 GND 아무데나 연결하면 파워가 보드에 연결하지 않아도 켜지것은 기본으로 알아야 한다.(?)
정리하고자 하는 내용은 OS상의 부팅 순서(절차)가 아니고 보드자체의 전원공급 절차를 알아보고자 한다.
Global System States
G0 - Global Working State
G1 - Global Sleeping State
S1 : No system context is lost
-> the STPCLK# signal goes active to the processor
->CPU performs a Stop-Grant cycle
->Cache coherency is maintained
S2 : Cache contect is lost
-> Not supported by ICH
S3: Suspend Tp RAM (STR)
-> System conext is maintained in system memory
-> All clocks stop except TRC clock
-> Power is shut oddto non-critical circuits.
Memory is retained, and refreshes of DRAM continues.
S4 : Suspend To Disk (STD)
-> System contect is maintained on the disk.
-> All power is shut off, except for the circuits to restart.
-> Extermally apears same as S5, but may have different wake events.
G2/S5 - Soft off
S5 : soft off
-> System conects is not maintained
-> All power is shut off except for the circuits to restart.
-> A full boot is required when waking.
G3 - Mechanical Off
-> All power is shut off except for RTC
-> No wake events are possible.
RSMRST# : Wake-up logic for the reset ICH
SLP_S3/S4/S5#:Power Control signal, Used to sleep shut down the power
VCC : The power of each group
VRMPWRGGD : VRM power ok, CPU voltage is normal.
1. PWRBTN
2.IO_PWRBTN
3.SLP_S3
4.SLP_S4
5.PSON
6.PWROK_PS
7.IO_PWROK
8.VRMPWRGD
9.PCI_RST
10.S_PLTRST
11.IDE_RST/PCIRST_PCIEX 16/1
12. CPUPWRGD
13. CURST
........공부중.........
