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1、8877665544332211DDCCBBAAVRM 10.0ClockNORTHWOOD uFC-PGA478-Pin uFCPGA SocketIDE Primary IDE SecondaryUSB Port 1 USB Port 24DIMMsWinbord W83627F/HF LPC SIOI/O Controller HubBLOCK DIAGRAMADDRDATAPCI CTRLPCI ADDR/DATAUSB 2.0/1.1LPC BUSUSB Port 3 USB Port 4CTRL875P MCHADDRDATACTRLULTRA DMA33/66/100ICH5Hu
2、b Link14. POWER,USB & FRONT CONN.13. AGP & IDE02. CPU SOCKET06. DDRA 07. DDRB 08. ICH5 & SATA 09. LPC & H/W MONITOR03. MCH MAIN05. MCH MEMORY12. KENAI II CSA LANPAGE TITLE10. PCI SLOTs 11. FWH & AC97KeyboardSerial 1/2 MouseFloppyParallelGame ConnKENAI II CSA14.318 MHzCPUClock GEN.FWH48 MHz (USB)33 M
3、Hz (PCI CLOCK)33 MHz (PCI CLOCK)LPC IOICH566 MHz (HUB LINK)XTAL32.768 KHzDDR DIMMsMCH14.318 MHz (REF CLOCK)33 MHz (PCI CLOCK)24 MHz (IO CLOCK)PCIs33 MHz (PCI CLOCK)XTALUSB Port 5 USB Port 6FirmWare Hub15. CLOCK GEN.USB Port 7 USB Port 816. PWM CONTROLLER01. BLOCK DIAGRAM17. LINEAR REGULATOR 18. CMI8
4、738 19. PROMISE SERIAL ATA 20. VIA IEEE 1394PCI CONN 4PCI CONN 5PCI CONN 1PCI CONN 2PCI CONN 3CMI 8738PROMISE SERIAL ATAVIA IEEE 1394SATA1SATA2100/133/200 MHz (GTL)DDR 266/333/400200/166/133 MHzLAN InterfaceINTEL 82562EX 10/100 PHY875PMAX04. MCH AGP1.5V ONLYAGP 3.0100/133/200 MHz (GTL)66 MHz (HUB LI
5、NK)100 MHz (SRC CLOCK)BLOCK DIAGRAM8877665544332211DDCCBBAAPLEASE THESE INSIDE SOCKET CAVITYAGTL+ Vref 1.5“North DecouplingClose to CPU pinsInside CPU socketSourth DecouplingFSAFSBFREQUENCY00100M133M166M0111Pentium 4 ProcessorH_BPM4 H_BPM5H_COMP0 H_COMP1HBR0- H_TDO H_TDI H_TMSH_TCK H_TRST-PROCHOT- P
6、WR_GD HRESET-HA23DEFER-HA5HA25HA27H_TMSHA22DBI0-DBSY-SLP-TESTHI02TESTHI8HTRDY-HA7HA13HA21TESTHI27NMIHINIT-H_TDIK_A20M-TESTHI27HA31H_BPM4HREQ-3H_COMP1HA12HA20HREQ-4HDSTBP3BPRI-TESTHI12HA17HA30H_BPM5HREQ-2H_COMP0HRESET-HA3HA11HA19CPU100HDSTBP2HITM-XSMI-TESTHI01TESTHI10HA16HA24HA29HREQ-0RS-2HDSTBN3HLOC
7、K-HA10HA18CPU100-HDSTBP1HBR0-HIT-TESTHI9HA15HA28RS-1HDSTBN2INTRSTPCLK-HADS-PWR_GDHA9DBI3-HDSTBP0FERR-BNR-IGNNE-HA14RS-0HADSTB0-HDSTBN1HA4HA8DBI2-TESTHI11HREQ-1HADSTB1-HDSTBN0DRDY-H_TCKHA6HA26DBI1-H_TRST-PROCHOT-HA3.31HD-0.63FPRST- FSAH_BPM3H_BPM2H_BPM0 H_BPM1HVSSAHVCCPLLVCCVIDTESTHI27 TESTHI01TESTHI
8、12TESTHI8VID4VID2VID0VID3VID1FSBIERR-IERR-VID5VID2 VID3 VID4VID0 VID1VID5VCCSENSE VSSSENSEPWMGODTESTHI10TESTHI9RST-HD-0 HD-1 HD-2 HD-3 HD-4 HD-5 HD-6 HD-7 HD-8 HD-9 HD-10 HD-11 HD-12 HD-13 HD-14 HD-15 HD-16 HD-17 HD-18 HD-19 HD-20 HD-21 HD-22 HD-23 HD-24 HD-25 HD-26 HD-27 HD-28 HD-29 HD-30 HD-31 HD-
9、32 HD-33 HD-34 HD-35 HD-36 HD-37 HD-38 HD-39 HD-40 HD-41 HD-42 HD-43 HD-44 HD-45 HD-46 HD-47 HD-48 HD-49 HD-50 HD-51 HD-52 HD-53 HD-54 HD-55 HD-56 HD-57 HD-58 HD-59 HD-60 HD-61 HD-62 HD-63FPRST-THERMTRIP-H_GTLREF_CPUH_GTLREF_CPUTESTHI11H_BPM2H_BPM0H_BPM1H_BPM3TESTHI02P1INH_TDOTHERMTRIP-SAGNDCPU100 1
10、5 CPU100- 15HADSTB0- 3 HADSTB1- 3HDSTBP1 3 HDSTBP2 3 HDSTBP3 3 HDSTBN0 3 HDSTBN1 3 HDSTBN2 3 HDSTBN3 3HDSTBP0 3INTR 8 NMI 8BPRI-3DBI2- 3HITM- 3STPCLK- 8HREQ-4 3HINIT-8,11HIT- 3K_A20M- 8DBI0- 3HREQ-3 3DBSY-3PWR_GD8RS-0 3DRDY-3DBI3- 3HADS- 3FERR-8HTRDY-3HBR0- 3 BNR-3DEFER-3HRESET- 3HREQ-1 3SLP- 8HREQ-
11、0 3DBI1- 3XSMI- 8RS-1 3IGNNE-8HREQ-2 3RS-2 3HLOCK- 3HA3.313FSA3,15HD-0.633PROCHOT-3,17FSB3,15VID0 17VID2 17VID1 17VID3 17 VID4 17VID517VSSSENSE 16VCCSENSE16BOOTSEL16RST-8,14,17H_GTLREF_CPU3PWMGOD_CPU17SLOTOCC 17THERMTRIP- 8SAGND 9P1IN 9VCCPVCCP VCCPVCCPVCCPVCCPVCC3VCCVIDVCCPR56680R9362+C75106P+C1091
12、06P+C156106P+C105106PR11262+C121106PR9762C152 106P+C61106PR108NC-0+C131106PR499NC-0+C74106P+C58106PR111300R59200U10BZIF478A10 A12 A14 A16 A18 A20 A8 AA10 AA12 AA14 AA16 AA18 AA8 AB11 AB13 AB15 AB17 AB19 AB7 AB9 AC10 AC12 AC14 AC16 AC18 AC8 AD11 AD13 AD15 AD17 AD19 AD7 AD9 AE10 AE12 AE14 AE16 AE18 AE
13、20 AE6 AE8 AF11 AF13 AF15 AF17 AF19 AF2 AF21 AF5 AF7 AF9 B11 B13 B15 B17AE23 AD20B19 B7 B9 C10 C12 C14 C16 C18 C20 C8 D11 D13 D15 D17 D19 D7 D9 E10 E12 E14 E16 E18 E20 E8 F11 F13 F15 F17 F19 F9AF4AF3AD22VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VC
14、CP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCPVCCA VCCIOPLLVCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP
15、VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCPVCCVIDVCCVIDPRGVSSA+C120106PR4562L522uH12ZIF478U10CD10 A11 A13 A15 A17 A19 A21 A24 A26 A3 A9 AA1 AA11 AA13 AA15 AA17 AA19 AA23 AA26 AA4 AA7 AA9 AB10 AB12 AB14 AB16 AB18 AB20 AB21 AB24 AB3 AB6 AB8 AC11 AC13 AC15 AC17 AC19 AC2 AC22 AC25 AC5 AC7 AC9 AD1 AD10 AD12
16、AD14 AD16 AD18 AD21 AD23 AD4 AD8 AE11 AE13 AE15 AE17 AE19J25 J5 K21 K24 K3 K6 L1 L23 L26 L4 M2 M22 M25 M5 N21 N24 N3 N6 P2 P22 P25 P5 R1 R23 R26 R4 T21 T24 T3 T6 U2 E17AE22 AE24 AE26 AE7 AE9 AF1 AF10 AF12 AF14 AF16 AF18 AF20 AF26 AF6 AF8 B10 B12 B14 B16 B18 B20 B23 B26 B4 B8 C11 C13 C15 C17 C19 C2 C22 C25 C5 C7 C9 D12 D14 D16 D18 D20 D21 D24 D3 D6 D8 E1 E11 E13 E15 E19 E23 E26 E4 E7 E9 F10 F12 F14 F16 F18 F2 F22 F25 F5 F8 G21 G24 G3 G6 H1 H23 H26 H4 J2 J22U22 U25 U5 V1 V23 V26 V4
