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1、54321ModelName:8I945PGRevision1.0SHEETTITLESHEETTITLE01COVERSHEET28FRONTPANELD02BLOCKDIAGRAM29FRONTUSB,REALUSBCONNECTD03BOM&PCBMODIFYHISTORY30PROCESSORHOT04P4_LGA775_A31AZALIACODECALC88005P4_LGA775_B32AUDIOJACK106P4_LGA775_C33AUDIOJACK207P4_LGA775_D34TI1394B08GMCH-LAKEPORT_HOST35T
2、I1394B09GMCH-LAKEPORT_DDRII36MARVELL88E8053LANC10GMCH-LAKEPORT_PCIE,DMI37ITE8712GBC11GMCH-LAKEPORT_INTVGA38COM_LPT12GMCH-LAKEPORT_GND39VCOREPWM13GMCH-LAKEPORT_PWR40DISCRETEPOWER14DDRIICHANNELA1,241ITE8212RAID15DDRIICHANNELB1,242ITE8212RAID16DDRIITERMINATION43GPIODEFINE17PCIEXPRESS
3、*16SLOT44GPIODEFINEB18ICH7PCI,USB,DMI,LANB19ICH7IDE,GPIO,SATA,CTRL20ICH7VCC,GND21ICS954148AFCLOCK.22ATX,ATX_12VCONNECT,DUALBIOS23PCIEXPRESS*1SLOT1,224PCISLOT1,2,325AH/WMONITOR,FANA26IDEIntelConfidentialTitle27KB_PS2,S.P.RCoverSheetGigabyteconfidentialSizeDocumentNumber8I945PGRevCu
4、stom1.0Date:Thursday,April21,2005Sheet14of45432154321BLOCKDIAGRAMINTELPentium4LGA775DCLOCKGENERATORDVCORE=1.4VVCC3CKVDD=3.3VPCIEXPRESSX16CHANNELAVDDQ=1.5V(AGPPOWER4X)VCC3=3.3V+12V=12VDDRIIDIMMX23VDUAL=3.3VGMCHVCC=5V1.8VSTR=1.8V(MEMORY,SUSPENDPOWER)LAKEPORTMAA0~14VTT_DDR=0.9VPAGE14
5、,15MAA_CPC1~5MAB_CPC1~5MDD0~63CHANNELB-DQSD0~7DDRIIDIMMX2MARVELL8053DM0~71.8VSTR=1.8V(MEMORY,SUSPENDPOWER)VCORE=1.75V/SLEEP:1.3VVTT_DDR=0.9VPAGE16,172_5VSTR=2.5V(MEMORY)VDDQ=1.5V(AGPPOWER4X,HUBLINK)CCPCIEXPRESSX1SLOT1VDDQ=1.5V(AGPPOWER4X)IDEPrimaryVCC3=3.3V+12V=12VICH7R3VDUAL=3.3V
6、VCC=5VPAGE28VCC=5VUSBPORTS0~7SERIALATAVCC25=2.5V(I/O,MEMORY/I,VLINK/I)VCC=5V3VDUAL=3.3V(SUSPENDPOWER)5VSB=5VVCC3=3.3VPAGE215VUSB=5VRTCVDD=3.3VVCC=5VPCIBUSBFWH/HWMOBPCISLOT1,2VCC=5VPAGE27+12=12VVCC3=3V-12=-12VVCC=5VVCC3=3V3VDUAL=3VLPCBUSTI1394AAC97/AzaliaALC880LPCI/OITE8712GB-IX+12
7、V=12VVCC3=3.3VVCC=5VVCC=5VPAGE335VSB=5VPAGE39AVDD=5VVBAT=3VITE8211AAUDIOPORTS:FRONTAUDIOI/OPORTS:ALIN_OUTLINE_INMICCOMACOMBLPTPS2IRFDDTELECD_INAUX_INPAGE34,35PAGE29,40FRONTPANEL/CPUFANVCC=5VIntelConfidential5VSB=5V+12=12VTitleGigabyteconfidentialPVCC=5VBOM&PCBMODIFYHISTORYSizeDocu
8、mentNumber8I945PGRevCustom1.0Date
