. Various Pentium 4 845 Chepset Circuit Digram free download

File name Pentium 4 845 Chepset Circuit Digram.pdf

5 4 3 2 1 Intel (R) 845E Interactive Client Reference Design D Revision X2 D Last Change : 2002-09-26 # Schematic Page Prefix Netobject Changes from X1 to X2 1 COVER SHEET A_ CRITICAL ANALOG TRACES 1 All BAT54A (0-0031-1261) changed to BAT54 (0-0031-1104) due to wrong polarity 2 BLOCK DIAGRAM AC_ AC97 SIGNAL 2 R712 changed from 10k to 15k to adjust voltage 3 BLOCK-POWER APIC_ APIC SIGNAL 3 PU R756 and R757 added @ U38.15 (PG_VDDR) and U38.16 (PG_V1V5) 4 MECH-ROUTE AUD_ ANALOG AUDIO SIGNAL 4 Net on pins U3.54 and U3.55 separated (BSEL[0..1]) due to naming error 5 NOTES 5 PU R758 added at CN34.7 (SYS_RESET#) 6 CPU-P4 BUS CK_ CLOCK SIGNAL 6 PU R759 added at U39.4 (VIDPWRGD) 7 CPU-P4 POWER 7 C717 changed from 4u7 to 1u EEn_ SERIAL EEPROM LANn 8 CPU-ITP 8 R607 not populated EN_ ENABLE FOR POWER SOURCES 9 R571 and R572 not populated (FWH Test Pins) 9 MCH-SYSBUS & CLOCK F_ FLOPPY DISK SIGNAL 10 R585 and R586 not populated (for LVDS 18 Bit) 10 MCH-AGP & DDR FWH_ FIRMWARE HUB SIGNAL 11 R760 and C741 added to U7.50 to generate a V_3V3SB input delay for resume reset 11 MCH-POWER 12 R501 and R494 not popul