Intel® 4 Series Chipset Family Datasheet For the Intel® 82Q45, 82Q43, 82B43, 82G45, 82G43, 82G41 Graphics and Memory Controller Hub (GMCH) and the Intel® 82P45, 82P43 Memory Controller Hub (MCH) March 2010 Document Number: 319970-007 INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL® PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN INTEL'S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, INTEL ASSUMES NO LIABILITY WHATSOEVER, AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. Intel products are not intended for use in medical, life saving, life sustaining, critical control or safety systems, or in nuclear facility applications. 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Copyright© 2010, Intel Corporation 2 Datasheet Contents 1Introduction............................................................................................................ 21 1.1 Terminology ..................................................................................................... 27 1.2 (G)MCH System Overview .................................................................................. 30 1.2.1 Host Interface........................................................................................ 30 1.2.2 System Memory Interface ....................................................................... 31 1.2.3 Direct Media Interface (DMI).................................................................... 31 1.2.4 Multiplexed PCI Express* Graphics Interface and Intel® sDVO/DVI/HDMI/DP Interface............................................................................................... 32 1.2.4.1 PCI Express* Interface .............................................................. 32 1.2.4.2 sDVO Multiplexed Interface (Intel® 82Q45, 82Q43, 82B43, 82G45, 82G43, 82G41 GMCH Only)........................................................ 33 1.2.4.3 HDMI/DVI/DP Multiplexed Interface (Intel® 82Q45, 82Q43, 82B43, 82G45, 82G43, 82G41 GMCH Only)............................................. 33 1.2.5 Graphics Features (Intel® 82Q45, 82Q43, 82B43, 82G45, 82G43, 82G41 GMCH Only).................................................................................................... 33 1.2.6 (G)MCH Clocking.................................................................................... 33 1.2.7 Power Management ................................................................................ 34 1.2.8 Thermal Sensor ..................................................................................... 34 2 Signal Description ................................................................................................... 35 2.1 Host Interface Signals........................................................................................ 36 2.2 System Memory (DDR2/DDR3) Interface Signals ................................................... 39 2.2.1 System Memory Channel A Interface Signals.............................................. 39 2.2.2 System Memory Channel B Interface Signals.............................................. 40 2.2.3 System Memory Miscellaneous Signals ...................................................... 41 2.3 PCI Express* Interface Signals............................................................................ 41 2.4 Controller Link Interface Signals.......................................................................... 42 2.5 Analog Display Signals ..... (Intel® 82Q45, 82Q43, 82B43, 82G45, 82G43, 82G41 GMCH Only)............................................................................................................... 42 2.6 Clocks, Reset, and Miscellaneous......................................................................... 43 2.7 Direct Media Interface........................................................................................ 44 2.8 Serial DVO Interface ............................................................................................. (Intel® 82Q45, 82Q43, 82B43, 82G45, 82G43, 82G41 GMCH Only) ......................... 45 2.9 HDMI Interface (Intel® 82G45, 82G43, 82G41, 82B43 GMCH Only) ......................... 48 2.10 Display Port Interface (Intel® 82Q45, 82Q43, 82B43, 82G45, 82G43, 82G41 GMCH Only) ......................... 49 2.11 Intel® High Definition Audio Intel® 82Q45, 82Q43, 82B43,82G45, 82G43, 82G41 GMCH Only)............................................................................................................... 50 2.12 Power and Grounds ........................................................................................... 51 3 System Address Map ............................................................................................... 53 3.1 Legacy Address Range ....................................................................................... 57 3.1.1 DOS Range (0h – 9_FFFFh) ..................................................................... 57 3.1.2 Legacy Video Area (A_0000h–B_FFFFh)..................................................... 57 3.1.3 Expansion Area (C_0000h-D_FFFFh) ......................................................... 59 3.1.4 Extended System BIOS Area (E_0000h–E_FFFFh)....................................... 59 3.1.5 System BIOS Area (F_0000h–F_FFFFh) ..................................................... 60 3.1.6 PAM Memory Area Details........................................................................ 60 3.2 Main Memory Address Range (1MB – TOLUD)........................................................ 60 3.2.1 ISA Hole (15 MB –16 MB)........................................................................ 61 3.2.2 TSEG .................................................................................................... 62 3.2.3 Pre-allocated Memory ............................................................................. 62 Datasheet 3 3.3 PCI Memory Address Range (TOLUD – 4 GB).........................................................63 3.3.1 APIC Configuration Space (FEC0_0000h–FECF_FFFFh) .................................65 3.3.2 HSEG (FEDA_0000h–FEDB_FFFFh)............................................................65 3.3.3 FSB Interrupt Memory Space (FEE0_0000–FEEF_FFFF) ................................65 3.3.4 High BIOS Area ......................................................................................65 3.4 Main Memory Address Space (4 GB to TOUUD) ......................................................66 3.4.1 Memory Re-claim Background ..................................................................67 3.4.2 Memory Reclaiming.................................................................................67 3.5 PCI Express* Configuration Address Space............................................................67 3.6 PCI Express* Address Space ...............................................................................68