Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers

    INTEL 845 MPGA478B MOTHERBOARD Search Results

    INTEL 845 MPGA478B MOTHERBOARD Result Highlights (5)

    Part ECAD Model Manufacturer Description Download Buy
    EN80C188XL-12 Rochester Electronics LLC 80C188XL - MPU Intel 186 CISC 16-Bit Visit Rochester Electronics LLC Buy
    EN80C188XL-20 Rochester Electronics LLC 80C188XL - MPU Intel 186 CISC 16-Bit Visit Rochester Electronics LLC Buy
    MD82C288-10/R Rochester Electronics LLC Replacement for Intel part number MD82C288-10. Buy from authorized manufacturer Rochester Electronics. Visit Rochester Electronics LLC Buy
    MD87C51/BQA Rochester Electronics LLC Replacement for Intel part number 5962-8768401QA. Buy from authorized manufacturer Rochester Electronics. Visit Rochester Electronics LLC Buy
    MG87C196KC/B Rochester Electronics LLC Replacement for Intel part number MG87C196KC. Buy from authorized manufacturer Rochester Electronics. Visit Rochester Electronics LLC Buy

    INTEL 845 MPGA478B MOTHERBOARD Datasheets Context Search

    Catalog Datasheet MFG & Type Document Tags PDF

    DBR3

    Abstract: INTEL 845 MOTHERBOARD CIRCUIT diagram 845 MOTHERBOARD CIRCUIT diagram 845 MOTHERBOARD CIRCUIT MANUAL intel mpga478b MOTHERBOARD
    Text: Intel Pentium® 4 Processor with 512-KB L2 Cache on 0.13 µ Process at 2 GHz, 2.20 GHz, and 2.40 GHz Datasheet Product Features • ■ ■ ■ ■ ■ ■ ■ ■ Available at 2 GHz, 2.20 GHz, and 2.40 GHz Binary compatible with applications running on previous members of the


    Original     		512-KB DBR3 INTEL 845 MOTHERBOARD CIRCUIT diagram 845 MOTHERBOARD CIRCUIT diagram 845 MOTHERBOARD CIRCUIT MANUAL intel mpga478b MOTHERBOARD PDF

    INTEL 845 MOTHERBOARD CIRCUIT diagram

    Abstract: intel 845 MOTHERBOARD SERVICE MANUAL 845 MOTHERBOARD CIRCUIT MANUAL mpga478b manual mpga478b motherboard intel mpga478b MOTHERBOARD SERVICE MANUAL pentium 4 northwood datasheet 845 MOTHERBOARD diagram intel 845 mpga478b motherboard mpga478b motherboard
    Text: Intel Pentium® 4 Processor with 512KB L2 Cache on .13 Micron Process at 2 GHz and 2.20 GHz Datasheet Product Features • Available ■8 ■ Binary at 2 GHz and 2.20 GHz compatible with applications running on previous members of the Intel microprocessor line


    Original     		512KB INTEL 845 MOTHERBOARD CIRCUIT diagram intel 845 MOTHERBOARD SERVICE MANUAL 845 MOTHERBOARD CIRCUIT MANUAL mpga478b manual mpga478b motherboard intel mpga478b MOTHERBOARD SERVICE MANUAL pentium 4 northwood datasheet 845 MOTHERBOARD diagram intel 845 mpga478b motherboard mpga478b motherboard PDF

    manual mpga478b motherboard

    Abstract: mpga478b motherboard intel mpga478b MOTHERBOARD installation MANUAL mpga478b motherboard diagram intel pentium 478 VID0 VID1 845 MOTHERBOARD CIRCUIT diagram computer motherboard circuit diagram 2001-2002 pin diagram intel pentium4 29864 INTEL 845 MOTHERBOARD CIRCUIT diagram
    Text: Intel Pentium® 4 Processor with 512-KB L2 Cache on 0.13 Micron Process at 2 GHz – 3.06 GHz, with Support for Hyper-Threading Technology1 at 3.06 GHz Datasheet • ■ ■ ■ ■ ■ ■ ■ ■ Available at 2 GHz, 2.20 GHz, 2.26 GHz, 2.40 GHz, 2.50 GHz, 2.53 GHz, 2.60 GHz,


    Original     		512-KB 478-pin manual mpga478b motherboard mpga478b motherboard intel mpga478b MOTHERBOARD installation MANUAL mpga478b motherboard diagram intel pentium 478 VID0 VID1 845 MOTHERBOARD CIRCUIT diagram computer motherboard circuit diagram 2001-2002 pin diagram intel pentium4 29864 INTEL 845 MOTHERBOARD CIRCUIT diagram PDF

    manual mpga478b motherboard

    Abstract: mpga478b motherboard diagram mpga478b INTEL 845 MOTHERBOARD CIRCUIT diagram mpga478b motherboard intel mpga478b MOTHERBOARD MANUAL Socket 478 VID pinout intel mpga478b MOTHERBOARD SERVICE MANUAL PGA zif socket 478 298643
    Text: Intel Pentium® 4 Processor with 512-KB L2 Cache on 0.13 Micron Process at 2 GHz, 2.20 GHz, 2.26 GHz, 2.40 GHz, 2.50 GHz, 2.53 GHz, 2.60 GHz, 2.66 GHz, and 2.80 GHz Datasheet Product Features • ■ ■ ■ ■ ■ ■ ■ ■ Available at 2 GHz, 2.20 GHz, 2.26 GHz,


    Original     		512-KB manual mpga478b motherboard mpga478b motherboard diagram mpga478b INTEL 845 MOTHERBOARD CIRCUIT diagram mpga478b motherboard intel mpga478b MOTHERBOARD MANUAL Socket 478 VID pinout intel mpga478b MOTHERBOARD SERVICE MANUAL PGA zif socket 478 298643 PDF

    manual mpga478b motherboard

    Abstract: mpga478b motherboard mpga478b motherboard manual mpga478b retention 845 MOTHERBOARD CIRCUIT diagram mpga478b motherboard diagram pentium PGA 423 MOTHERBOARD CIRCUIT diagram socket 478 pinout bsel mpGA478b intel socket 423 pin assignments
    Text: Intel Pentium® 4 Processor with 512-KB L2 Cache on 0.13 Micron Process at 2 GHz, 2.20 GHz, 2.26 GHz, 2.40 GHz, and 2.53 GHz Datasheet Product Features • ■ ■ ■ ■ ■ ■ ■ ■ Available at 2 GHz, 2.20 GHz, 2.26 GHz, 2.40 GHz, and 2.53 GHz Binary compatible with applications running


    Original     		512-KB manual mpga478b motherboard mpga478b motherboard mpga478b motherboard manual mpga478b retention 845 MOTHERBOARD CIRCUIT diagram mpga478b motherboard diagram pentium PGA 423 MOTHERBOARD CIRCUIT diagram socket 478 pinout bsel mpGA478b intel socket 423 pin assignments PDF

    manual mpga478b motherboard

    Abstract: mpga478b motherboard diagram intel mpga478b MOTHERBOARD SERVICE MANUAL mpga478b motherboard INTEL 845 MOTHERBOARD CIRCUIT diagram pentium4 2.4 GHz 512 533 intel 845 MOTHERBOARD SERVICE MANUAL mpga478b manual PGA zif socket 478 intel mpga478b MOTHERBOARD installation MANUAL
    Text: Intel Pentium® 4 Processor with 512-KB L2 Cache on 0.13 Micron Process Datasheet 2 GHz – 3.20 GHz Frequencies Supporting Hyper-Threading Technology1 at 3.06 GHz with 533 MHz System Bus and All Frequencies with 800 MHz System Bus • ■ ■ ■ ■ ■


    Original     		512-KB 512-KB manual mpga478b motherboard mpga478b motherboard diagram intel mpga478b MOTHERBOARD SERVICE MANUAL mpga478b motherboard INTEL 845 MOTHERBOARD CIRCUIT diagram pentium4 2.4 GHz 512 533 intel 845 MOTHERBOARD SERVICE MANUAL mpga478b manual PGA zif socket 478 intel mpga478b MOTHERBOARD installation MANUAL PDF

    socket 478 pinout bsel

    Abstract: Socket 478 VID pinout MPGA478B mpga478b motherboard diagram INTEL 845 MOTHERBOARD CIRCUIT diagram pentium 4 northwood 2.53 845 MOTHERBOARD CIRCUIT diagram intel pentium 478 VID0 VID1 manual mpga478b motherboard mpga478b motherboard
    Text: Intel Pentium® 4 Processor with 512-KB L2 Cache on 0.13 Micron Process at 2 GHz – 3.06 GHz, with Support for Hyper-Threading Technology1 at 3.06 GHz Datasheet • ■ ■ ■ ■ ■ ■ ■ ■ Available at 2 GHz, 2.20 GHz, 2.26 GHz, 2.40 GHz, 2.50 GHz, 2.53 GHz, 2.60 GHz,


    Original     		512-KB 423-pin BX80528JK200G BX80528JK190G BX80528JK180G 256MB BX80528JK170GR2 BK80528JK170GR2 128MB BX80528JK170GR socket 478 pinout bsel Socket 478 VID pinout MPGA478B mpga478b motherboard diagram INTEL 845 MOTHERBOARD CIRCUIT diagram pentium 4 northwood 2.53 845 MOTHERBOARD CIRCUIT diagram intel pentium 478 VID0 VID1 manual mpga478b motherboard mpga478b motherboard PDF

    Untitled

    Abstract: No abstract text available
    Text: Intel Pentium® 4 Processor with 512-KB L2 Cache on 0.13 Micron Process Datasheet 2 GHz – 3.06 GHz Frequencies Supporting Hyper-Threading Technology1 at 3.06 GHz with 533 MHz System Bus and all Frequencies with 800 MHz System Bus • ■ ■ ■ ■ ■


    Original     		512-KB 533the 512-KB PDF

    pentium4 2.4 GHz

    Abstract: No abstract text available
    Text: Intel Pentium® 4 Processor with 512-KB L2 Cache on 0.13 Micron Process at 2 GHz – 3.06 GHz, with Support for Hyper-Threading Technology1 at 3.06 GHz Datasheet • ■ ■ ■ ■ ■ ■ ■ ■ Available at 2 GHz, 2.20 GHz, 2.26 GHz, 2.40 GHz, 2.50 GHz, 2.53 GHz, 2.60 GHz,


    Original     		512-KB 512-KB 478-pin pentium4 2.4 GHz PDF

    intel mpga478b MOTHERBOARD SERVICE MANUAL

    Abstract: intel mpga478b MOTHERBOARD installation MANUAL manual mpga478b motherboard mpga478b motherboard manual intel mpga478b MOTHERBOARD MANUAL intel 845 MOTHERBOARD SERVICE MANUAL intel 845 mpga478b motherboard 845 MOTHERBOARD CIRCUIT diagram mpga478b motherboard diagram 845 MOTHERBOARD CIRCUIT MANUAL
    Text: Intel Pentium® 4 Processor with 512-KB L2 Cache on 0.13 Micron Process and Intel® Pentium® 4 Processor Extreme Edition Supporting Hyper-Threading Technology1 Datasheet 2 GHz – 3.40 GHz Frequencies Supporting Hyper-Threading Technology1 at 3.06 GHz with 533 MHz System Bus and All


    Original     		512-KB BX80528JK200G BX80528JK190G BX80528JK180G 256MB BX80528JK170GR2 BK80528JK170GR2 128MB BX80528JK170GR BX80528JK170G intel mpga478b MOTHERBOARD SERVICE MANUAL intel mpga478b MOTHERBOARD installation MANUAL manual mpga478b motherboard mpga478b motherboard manual intel mpga478b MOTHERBOARD MANUAL intel 845 MOTHERBOARD SERVICE MANUAL intel 845 mpga478b motherboard 845 MOTHERBOARD CIRCUIT diagram mpga478b motherboard diagram 845 MOTHERBOARD CIRCUIT MANUAL PDF

    intel mpga478b MOTHERBOARD SERVICE MANUAL

    Abstract: mpga478b motherboard diagram intel 845GL users manual manual mpga478b motherboard intel mpga478b MOTHERBOARD installation MANUAL intel 845 MOTHERBOARD SERVICE MANUAL intel mpga478b MOTHERBOARD MANUAL vrm pentium 4 mpga478b motherboard manual 865gv motherboard
    Text: Intel Pentium® 4 Processor with 512-KB L2 Cache on 0.13 Micron Process and Intel® Pentium® 4 Processor Extreme Edition Supporting Hyper-Threading Technology1 Datasheet 2 GHz – 3.40 GHz Frequencies Supporting Hyper-Threading Technology1 at 3.06 GHz with 533 MHz System Bus and All


    Original     		512-KB intel mpga478b MOTHERBOARD SERVICE MANUAL mpga478b motherboard diagram intel 845GL users manual manual mpga478b motherboard intel mpga478b MOTHERBOARD installation MANUAL intel 845 MOTHERBOARD SERVICE MANUAL intel mpga478b MOTHERBOARD MANUAL vrm pentium 4 mpga478b motherboard manual 865gv motherboard PDF

    manual mpga478b motherboard

    Abstract: mpga478b motherboard diagram mpga478b motherboard intel mpga478b MOTHERBOARD SERVICE MANUAL mpga478b motherboard manual intel mpga478b MOTHERBOARD MANUAL intel mpga478b MOTHERBOARD installation MANUAL INTEL 845 MOTHERBOARD CIRCUIT diagram mpga478b parts intel 845GL users manual
    Text: Intel Pentium® 4 Processor with 512-KB L2 Cache on 0.13 Micron Process and Intel® Pentium® 4 Processor Extreme Edition Supporting Hyper-Threading Technology1 Datasheet 2 GHz – 3.20 GHz Frequencies Supporting Hyper-Threading Technology1 at 3.06 GHz with 533 MHz System Bus and All


    Original     		512-KB manual mpga478b motherboard mpga478b motherboard diagram mpga478b motherboard intel mpga478b MOTHERBOARD SERVICE MANUAL mpga478b motherboard manual intel mpga478b MOTHERBOARD MANUAL intel mpga478b MOTHERBOARD installation MANUAL INTEL 845 MOTHERBOARD CIRCUIT diagram mpga478b parts intel 845GL users manual PDF

    Socket 478 VID pinout

    Abstract: 845 MOTHERBOARD CIRCUIT diagram 845 intel chipset motherboard circuit PGA zif socket 478 manual mpga478b motherboard intel socket 423 pin assignments 478 SOCKET PINOUT intel 845 MOTHERBOARD SERVICE MANUAL
    Text: Intel Celeron® Processor on .13 Micron Process in the 478-Pin Package Datasheet • ■ ■ ■ ■ ■ ■ Available at 2 GHz Binary compatible with applications running on previous members of the Intel microprocessor line System bus frequency at 400 MHz


    Original     		478-Pin Socket 478 VID pinout 845 MOTHERBOARD CIRCUIT diagram 845 intel chipset motherboard circuit PGA zif socket 478 manual mpga478b motherboard intel socket 423 pin assignments 478 SOCKET PINOUT intel 845 MOTHERBOARD SERVICE MANUAL PDF

    manual mpga478b motherboard

    Abstract: intel mpga478b MOTHERBOARD SERVICE MANUAL mpga478b motherboard diagram PC MOTHERBOARD intel 845 circuit diagram INTEL 845 MOTHERBOARD CIRCUIT diagram mPGA478B vcc Socket 478 VID pinout PGA zif socket 478 845GL intel 845GL users manual
    Text: Intel Celeron® Processor on 0.13 Micron Process in the 478-Pin Package Datasheet • ■ ■ ■ ■ ■ ■ Available at 2 GHz, 2.10 GHz, 2.20 GHz, 2.30 GHz, and 2.40 GHz Binary compatible with applications running on previous members of the Intel microprocessor line


    Original     		478-Pin 128-KB manual mpga478b motherboard intel mpga478b MOTHERBOARD SERVICE MANUAL mpga478b motherboard diagram PC MOTHERBOARD intel 845 circuit diagram INTEL 845 MOTHERBOARD CIRCUIT diagram mPGA478B vcc Socket 478 VID pinout PGA zif socket 478 845GL intel 845GL users manual PDF

    MPGA478 SOCKET pin layout

    Abstract: intel mpga478b MOTHERBOARD installation MANUAL mPA478-Pin
    Text: Intel Pentium® 4 Processor in the 478-pin Package at 1.40 GHz, 1.50 GHz, 1.60 GHz, 1.70 GHz, 1.80 GHz, 1.90 GHz, and 2 GHz Datasheet Product Features Available at 1.40, 1.50, 1.60, 1.70, 1.80, 1.90 and 2 GHz Binary compatible with applications running on previous members of the


    Original     		478-pin MPGA478 SOCKET pin layout intel mpga478b MOTHERBOARD installation MANUAL mPA478-Pin PDF

    FV80524RX366128

    Abstract: mpga478b motherboard
    Text: Intel Celeron® Processor in the 478-Pin Package up to 1.70 GHz Datasheet • ■ ■ ■ ■ ■ ■ Available at 1.70 GHz Binary compatible with applications running on previous members of the Intel microprocessor line System bus frequency at 400 MHz.


    Original     		478-Pin BX80526F766128 BX80526F733128 BX80526F700128 BX80526F667128 BX80526F633128 BX80526F600128 BX80526F566128 BX80524P533128 BX80524P500128 FV80524RX366128 mpga478b motherboard PDF

    manual mpga478b motherboard

    Abstract: mpga478b motherboard diagram INTEL 845 MOTHERBOARD CIRCUIT diagram mpga478b motherboard intel 845GL users manual PC MOTHERBOARD intel 845 circuit diagram D1 PGA 478 matrix tv m21 service mode manual 251748 PGA zif socket 478
    Text: Intel Celeron® Processor on 0.13 Micron Process in the 478-Pin Package Datasheet • ■ ■ ■ ■ ■ ■ Available at 2 GHz, 2.10 GHz, 2.20 GHz, 2.30 GHz, 2.40 GHz, 2.50 MHz, and 2.60 MHz Binary compatible with applications running on previous members of the Intel


    Original     		478-Pin 128-KB manual mpga478b motherboard mpga478b motherboard diagram INTEL 845 MOTHERBOARD CIRCUIT diagram mpga478b motherboard intel 845GL users manual PC MOTHERBOARD intel 845 circuit diagram D1 PGA 478 matrix tv m21 service mode manual 251748 PGA zif socket 478 PDF

    845 MOTHERBOARD CIRCUIT diagram

    Abstract: intel mpga478b MOTHERBOARD installation MANUAL 0xF29 845 intel chipset motherboard circuit
    Text: Intel Celeron® Processor on 0.13 Micron Process in the 478-Pin Package Datasheet • ■ ■ ■ ■ ■ ■ Available at 2 GHz, 2.10 GHz, 2.20 GHz, 2.30 GHz, 2.40 GHz, 2.50 GHz, and 2.60 GHz Binary compatible with applications running on previous members of the Intel


    Original     		478-Pin 128-KB 845 MOTHERBOARD CIRCUIT diagram intel mpga478b MOTHERBOARD installation MANUAL 0xF29 845 intel chipset motherboard circuit PDF

    Untitled

    Abstract: No abstract text available
    Text: Intel Celeron® Processor on 0.13 Micron Process in the 478-Pin Package Datasheet • ■ ■ ■ ■ ■ ■ Available at 2 GHz, 2.10 GHz, 2.20 GHz, 2.30 GHz, 2.40 GHz, 2.50 GHz, 2.60 GHz, and 2.70 GHz Binary compatible with applications running on previous members of the Intel


    Original     		478-Pin 128-KB PDF

    intel mpga478b MOTHERBOARD SERVICE MANUAL

    Abstract: manual mpga478b motherboard mpga478b motherboard diagram 845 MOTHERBOARD CIRCUIT diagram PENTIUM4 intel 775 motherboard diagram MPGA478 SOCKET INTEL 845 MOTHERBOARD CIRCUIT diagram D1 PGA 478 intel mpga478b MOTHERBOARD installation MANUAL
    Text: Intel Pentium® 4 Processor in the 478-Pin Package at 1.40 GHz, 1.50 GHz, 1.60 GHz, 1.70 GHz, 1.80 GHz, 1.90 GHz, and 2GHz Datasheet Product Features § § § § § § § § Available at 1.40, 1.50, 1.60, 1.70, 1.80, 1.90 and 2 GHz Binary compatible with applications


    Original     		478-Pin 478-pin intel mpga478b MOTHERBOARD SERVICE MANUAL manual mpga478b motherboard mpga478b motherboard diagram 845 MOTHERBOARD CIRCUIT diagram PENTIUM4 intel 775 motherboard diagram MPGA478 SOCKET INTEL 845 MOTHERBOARD CIRCUIT diagram D1 PGA 478 intel mpga478b MOTHERBOARD installation MANUAL PDF

    PGA zif socket 478

    Abstract: intel mpga478b MOTHERBOARD SERVICE MANUAL manual mpga478b motherboard 478 SOCKET PINOUT mpga478b motherboard diagram intel 845 MOTHERBOARD CIRCUIT diagram Intel socket 478 PIN LAYOUT pentium4 478 PC MOTHERBOARD intel 845 circuit diagram MPGA478B
    Text: Intel Celeron® Processor in the 478-Pin Package up to 1.80 GHz Datasheet • ■ ■ ■ ■ ■ ■ Available at 1.70 and 1.80 GHz Binary compatible with applications running on previous members of the Intel microprocessor line System bus frequency at 400 MHz.


    Original     		478-Pin 478-Pin PGA zif socket 478 intel mpga478b MOTHERBOARD SERVICE MANUAL manual mpga478b motherboard 478 SOCKET PINOUT mpga478b motherboard diagram intel 845 MOTHERBOARD CIRCUIT diagram Intel socket 478 PIN LAYOUT pentium4 478 PC MOTHERBOARD intel 845 circuit diagram MPGA478B PDF

    PGA zif socket 478

    Abstract: mpga478b motherboard diagram 478 SOCKET PIN LAYOUT intel 845 MOTHERBOARD SERVICE MANUAL manual mpga478b motherboard INTEL 845 MOTHERBOARD CIRCUIT diagram 478 SOCKET 845E Chipset intel 830 intel mpga478b MOTHERBOARD SERVICE MANUAL
    Text: Intel Celeron® Processor in the 478-Pin Package up to 1.70 GHz Datasheet • ■ ■ ■ ■ ■ ■ Available at 1.70 GHz Binary compatible with applications running on previous members of the Intel microprocessor line System bus frequency at 400 MHz.


    Original     		478-Pin 478-pin PGA zif socket 478 mpga478b motherboard diagram 478 SOCKET PIN LAYOUT intel 845 MOTHERBOARD SERVICE MANUAL manual mpga478b motherboard INTEL 845 MOTHERBOARD CIRCUIT diagram 478 SOCKET 845E Chipset intel 830 intel mpga478b MOTHERBOARD SERVICE MANUAL PDF

    pentium4 2.4 GHz 512 533

    Abstract: 845 MOTHERBOARD CIRCUIT diagram 251748 PC MOTHERBOARD intel 478 circuit diagram
    Text: Intel Celeron® Processor on 0.13 Micron Process in the 478-Pin Package Datasheet • ■ ■ ■ ■ ■ ■ Available at 2 GHz, 2.10 GHz, and 2.20 GHz Binary compatible with applications running on previous members of the Intel microprocessor line System bus frequency at 400 MHz


    Original     		478-Pin 128-KB BX80524P400128 BX80524R400128 RB80526RY950128 RB80526RY900128 RB80526RY850128 RB80526RX800128 RB80526RX766128 RB80526RX733128 pentium4 2.4 GHz 512 533 845 MOTHERBOARD CIRCUIT diagram 251748 PC MOTHERBOARD intel 478 circuit diagram PDF

    manual mpga478b motherboard

    Abstract: intel mpga478b MOTHERBOARD SERVICE MANUAL mpga478b motherboard diagram PC MOTHERBOARD intel 845 circuit diagram PC 845 MOTHERBOARD SERVICE MANUAL INTEL 845 MOTHERBOARD CIRCUIT diagram intel 845g chipset motherboard layout intel 845GL users manual mpga478b motherboard mpga478b
    Text: Intel Celeron® Processor on 0.13 Micron Process in the 478-Pin Package Datasheet • ■ ■ ■ ■ ■ ■ Available at 2 GHz, 2.10 GHz, 2.20 GHz, 2.30 GHz, 2.40 GHz, 2.50 GHz, 2.60 GHz, 2.70 GHz, and 2.80 GHz Binary compatible with applications running on previous members of the Intel


    Original     		478-Pin 128-KB manual mpga478b motherboard intel mpga478b MOTHERBOARD SERVICE MANUAL mpga478b motherboard diagram PC MOTHERBOARD intel 845 circuit diagram PC 845 MOTHERBOARD SERVICE MANUAL INTEL 845 MOTHERBOARD CIRCUIT diagram intel 845g chipset motherboard layout intel 845GL users manual mpga478b motherboard mpga478b PDF