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File name Inventec laptop motherboard schematic diagram.pdf

8 7 6 5 4 D NOTE: "NI" OR "( )" USED WITH COMPONENTS INDICATES "NOT INSTALLED". TABLE OF CONTENTS PAGE 2345678C 36 BLOCK DIAGRAM RESET BLOCK DIAGRAM SYSTEM CLOCK DUAL DRCG ITP FOSTERA-1 FOSTERA-2 FOSTERB-1 FOSTERB-2 VRM decoupling Comparator GTL REFERENCE CPU PLL VOLTAGE COLUSA-1 COLUSA-2 CHA RIMM 1 37 38 39 40 41 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65-66 67-68 69 70 71 72-75 76-80 - INTERNAL SPKR & JACK HEADPHONE AMP FWH AUDIO REGULATOR /MIC I2C SELECT CONTROL P/S CONNECTOR IDE CONNECTORS 910 11 12 13 14 15 16 17 18 19 20 21 22 - B 23 24 25 26 - A 8 w la . w w 27 28 29 30 31 34 35 32-33 7 p to p CHA RIMM 2 SLP_S3 CHA RSL TERMINATION CHB RIMM1 CHB RIMM2 CHB TERMINATION UNIV AGP PRO AGP TERMINATIONS PCI TERMINATIONS PCI CONNECTOR SLOT 1 PCI CONNECTOR SLOT 2 PCI CONNECTOR SLOT 3 LAN PHY ICH2 MAGNETICS/RJ45 CONNECTOR sound blaster AC97 CODEC -s m e h c IDE TERMINATIONS FAN CONTROL SUPER I/O SIO2 POWER CKT SERIAL PORTS USB PORTS 1-2 USBPORT 2&3 VDDQ REGULATOR 2.5V DECOUPLING 2.5V REGULATOR 1.8V REGULATOR DECOUPLING PRIMARY VRM SECONDARY VRM REV SHEET MISC PS_ON & RESET CKT BATTERY & RTC OSC. a ic t .c s m o C PARALLEL PORT TERM. KB/MS/FLOPPY CONN. Embedded SCSI Controller SCSI CTLR DECOUPLING & LED CKT SCSI ON-BOARD AUTO-TERMINATION INTERNAL LVD/SE SCSI CONNECTOR VOLTAGE REGULATORS B VOLTAGE ATTRIBUTES NET_CROSS_REF_PAGE(S) COMP_CROSS_REF_PAGE(S) 8 7 6 5 4 3 Audio Ports D SCALABLE BUS Hub Link C AGP BUS AC97 Link RAMBUS CMOS BUS B RSL BUS A 8 w la . w w 7 6 DVD ------------------------- to p IDE CD-ROM USB Ports -s p m e h c PCI BUS LPC I/F BUS a ic t PCI SLOT 3 PCI SLOT 2 .c s 2 m o 1 D PCI SLOT 1 C B ATA-100 A 5 8 7 6 5 4 3 D C B A 8 w la . w w 7 6 to p -s p m e h c a ic t .c s 2 m o 1 D C B A w 6 4 3_3V_SYS_CLK 1K 1K R946 * * 8 5 3 2 1 7 4 +3.3V 1% * * * * C99 COG 10PF CLK_CPU_SEC 4,8 4,8 4,10 4,10 CLK_CPU_SEC_ CLK_CPU_PRI 1% CLK_CPU_PRI_ 1 49.9 49.9 49.9 C38 14.318MHZ R256 NI 49.9 C39 COG 10PF COG 10PF C100 COG 10PF 114410-002 10PF R257 R255 * NI R254 NI Y3 D 1K * SXTL4DT R1006 1% 1% NI U32 R1005 * C287 10PF la . w w R259 NI 33 33 * * NI XTALIN XTALIN XTALOUT R1004 * XTALOUT 23 52 CPUCLK0 CPUCLK0_ R952 R953 R950 R951 * * * * C288 5 6 REFCLK0_MULTISEL0 REFCLK1_MULTISEL1 42 41 33 33 33 33 CLK_CPU_SEC CLK_CPU_SEC_ CLK_MCH CLK_MCH_ DRCG_CLKIN 33 33 33 CLK_CPU_PRI CLK_CPU_PRI_ 45 44 R954 R955 CLK_ITP CLK_ITP_ 33 33 4,6 4,6 4,10 4,10 32 49 175244-001 SSO56WAT 2 3 ICH_CLK14 SIO_CLK14M R1008 NC_133_100_ SEL133 SPREAD_ CPUCLK1 CPUCLK1_ 28 * t p 300 PWR_DWN_ 39 IREF VDDREF VSSREF CPUCLK3 CPUCLK3_ * I R947 4 1 56 53 VDDMEM VSSMEM R945 * * NI CPUCLK2 CPUCLK2_ R948 R949 CPUDIV2 NC_MEMREF_ R1007 * * * 33 SPREAD_ 51 50 R_SPREAD_ 48 47 4,8 4,8 4,16 4,16 5 R252 * R261 0 MEMREF MEMREF_ 33 33 55 54 I * 475 +3.3V 27 24 VDDUSB VSSUSB 38 37 AVDD AVSS 33 8 7 6 5 1 2 3 4 300 C 60 R253 4 NI NI 1K NI