单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,*,+,_,PWR_SRC,PS_ID,RTC_SRC,MAX1615,MIC5236,MOSFET,MOSFET,5VALW,3VALW,RTC_PWR3.3V,RTC_PWR5V,ALW_ON,#,ALW_ON,#,MAX1632,SUS_ON,AUX_EN,therm_stp#,LPC47N254,SUS_ON,3V_SRC,5VSUS,3VSUS,3V_LAN,3VSUS_ON,AUX_EN,+12V,LAN,ICH4,SUSPWROK,Slp_s5#,Slp_s3#,CLK,Slp_s1#,3VRUN,5VRUN,1_8VRUN,1_5VRUN,RUN_ON,RUNPWROK,MAX1715,SC1476,1_2MCH,VTT,VHCORE,VR_PG,VR_PG,1715PG,DELAY_IMVP_PG,MCH,PCIRST#,CPU,CPURST#,CPUPG,DELL D600,上电时序,SIO,在供电（,RTC_PWR3.3V/+3VALW,）和时钟正常时处于待机状态。,按下开机键，,SIO,得到,PWRSW_SIO#,开机信号,(,低电平,),并送出,PWRBTN#(BIOS,正常，此信号才正常,),信号给,ICH,，此时,ICH,产生,SLP_S5#,返回给,I/O,由,SIO,输出,SUS_ON,信号及,AUX_EN,信号，使,SUS,电压和网卡电压,+3V_LAN,产生。,当,SUS,电压正常就会产生,SUSPWROK,信号给南桥复位。,南桥接收到,SUSPWROK,后再发出,SLP_S3#,信号给,SIO,。,SIO,再发出,RUN_ON,信号开启,5VRUN,、,3VRUN,、,1_5VRUN,、,1.8VRUN,、,M7_CORE,等电压。,每组电压都输出相应,PG,电压，再组成,RUNPWROK,信号，去控制,CPU,电压的产生，当,CPU,电压正常后输出,VCORE_PWRGOOD,信号,一路送到南桥，另一路与,1715PWROK,信号会合产生,IMVP_PWRGD,信号：一路转为,VTT_PWRGD#,去开启时钟（开机时南桥发出信号,SLP_S1#,信号给时钟芯片，当,CPU,供电芯片输出,PG,信号给南桥，南桥再发出,STP_PCI#,、,STP_CPU#,给时钟芯片，,VCORE_PWRGOOD,信号与,1715PWROK,信号会合产生,IMVP_PWRGD,信号，转为,VTT_PWRGD#,去开启时钟，时钟电路开始工作作产生时钟）。另一路转为,DELAY_IMVP_PWRGD,信号送给南桥。,当所有电压正常，南桥收到,CPU,供电芯片,SC1476,发出,VCORE_PWRGOOD,信号和各路电源,OK,组成的,DELAY_IMVP_PWRGD,信号，此时南桥发出,CPUPWRGD,信号给,CPU,，,CPU,开始读取,BIOS,。,