笔记本维修1 1新课程第

第13课：T40主板启动工作流程与接口电路分析

主要内容：IBM主板维修工厂内部资料各主要接口电路的关键引脚定义教学目的：了解T40主板的复位、PG信号故障的分析检修

掌握各常规接口的引脚定义Rome2/ApolloICH4H8STSURUMAIDC/DCPWMCPUMCHPMH4-MAINOFFAD3205CLKGeneratorVCC5M,VCC3MMPWRGBPWRG-PWRSW_H8DC/DCSwitchVR_PWRGD-CLK_ENABLEVCORE_ON-CPURST-PCIRSTCPUPWRG-PM_SLP_S3VCC3MVCC5Mvcc1r2mVCC1R8MVCC1R5MVCC3AUXVCC1R5AUXVCCCPUCOREVCC3AVCC3BVCC5BVCC1R8BVCC1R5BVCC2.5_VVCC1.5_VVCC1.8_VVCC3_V-ICH_SLP_S4-ICH_SLP_S3-PWRSWITCHDCINT16V154732VCC2R5AVCCCPUIOVCC1R25BVCC1R2BVCCVIDEOCORE376VCC3PVBL1691312VTT_PWRG8A_ON,B_ONBootup-PM_SLP_S5997101010111314DCINT16VVINT16VREGIN16VCC3SW+16VSRCU61-EXTPWRVL5-EXTPWR_PMH4VCC5M_ONVCC1R8M_ONVCC1R5MVCC1R8MVCC1R2MVCC5MVCC3MVCC1R5AUXVCC3AUXAUX_ONRome2/ApolloPMH4MAX1631TSURUMAIU29U41U51U41U28-ICH_SLP_S3TB62501M-BATS-BAT-MAINOFFU23U61-EXTPWR_H8H8VR4VCC1R5AUX_ONMPWRGICH-4U5U28Rome2/ApolloRome2/Apollo-PWRSWITCHU28VCC5M,VCC3MONMPWRG?-PM_SLP_S5-PM_SLP_S3YESNOVCC2R5AU61VCC3AVCCCPUIOVCC2.5VVCC2R5A_ONU30U29VCC1R25BU61VCC3BVCC1R8BVCC5BQ70VCC1R2BB_ONVCCCPUCOREVCORE_ONVTT_PWRGVCCVIDEOCOREPANEL_POWER_ONVCC3PU61Q45Q22VBL16VCC3P_DRVVBL_DRV-CLK_ENABLEU19VCC1R5BU30Q31VCC1R5B_DRVU51Video_ONU47U61Q88Q12VCC3_VVCC1.8_VVIDEO_DRVQ42VCC1.5_VPMH4PowershutdownThermalshutdownQ99U23U5Rome2/ApolloVCC3M,BatteryVCC3MVCC5MVCC3MVCC1R5MVCC3BVCC1R5BVCC1R8BVCCCPUIOVCC3AUXVCC1R5AUXVCC3BVCC5B-PCIRSTICH4PWROK<---BPWRGVGATE<---VR_PWRGDRSMRST<--MPWRGpoweronRome2/ApolloU19VGATE/VRMPWRGPWROKVCC3MVCC5MVCC1R5MVCC3AUXVCC1R5AUXVCC3BVCC5BVCC1R8BVCCCPUIOVCC1R5BO.KVR_PWRGDCPUPWRGCPUICH4BPWRGU61-CPURSTMCH-PCIRSTCPURSTACTIVE

IBMPOSTCODESTARTC8,C924,04,06CPU,GMCH,ICH3,FWHCPU,GMCHICH318FromS4ICH3SMBUS08DFC1,11,0A17,28,3A,2A,2C,2EGMCH,SDRAM0A,3A2A,2FShadowedToRam,38E0ICH3,PCICheckWrap-Plug20ICH3,SuperIO29,33,092BC1,3B,090A,CE,3A,0B,D10F14ICH3,H81A,1C22,C832,67,9C,6B,343C,3D42,45,47,49,C6WOLGMCH,ICH3CPU,GMCH,ICH3GMCH,VGAICH3,PMH2C548,4A,4C2459,CC55,22,52,54,76,583F,C4,7CIBMLOGOC6,C95B,5C,60,62,6466,68,6A,6C,6E7C,*C6,7E*C1,88,8A,81,87,85,82,84,86,83,CE8C,CB,CD,90,8B,95,92B6,(IBMsecuritycheck),BA,98,BE96,AE,9E93,10,C7,9E,A0,7A,CE,A4,C2,BA,C3A8,AA,ACE3AE,B0,B2,B4,B5,C5Initial,crypt,EEPROM,BootBeepComponentsMostlyinvolvedBiosSetupPCIRST#&CC_CPUPWRGDpowerpartRUNPower(outputpowerafterpushpowerbutton)POWERSWITCHPWRSW_H8U23pin19-PM_SLP_S3#U28pin71(outputSuspendtoRAM)-PM_SLP_S4#(Suspendtodisk)-PM_SLP_S5#U28pin72(systemSoftoff)A2_ON_PMH4U28pin63VCC2R5A_ONVCC2R5AL10pin1outputforDDRDIMMbyMAX1845B_ON_PMH4U28pin70B_OND1pin1CPUIO_ONU29pin111R25BPOWERL15pin2(outputforRAMbyMAX1845)VCCCPUIOL11pin2(outputforCPUbyMAX1845)VTT_PWRGR474pin2(outputforCPUpowercontrolbyCPUI/OokVCORE_ON_PMH4VCORE-ONU19pin18VCCCPUCOREL2pin2(outputforCPUbyADP3205)OutputforKBC