
TMC RESEARCH CORPORATION

PCI48IX (VER. 1.0)

Processor      80486SX/80487SX/80486DX/ODP486SX/80486DX2/Pentium Overdrive
Processor      25/33/50(internal)/66(internal)MHz
Speed
Chip Set       Intel
Max. Onboard   128MB
DRAM
Cache          64/128/256KB
BIOS           AMI
Dimensions     330mm x 218mm
I/O Options    32-bit PCI slots (3)
NPU Options    None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  IDE interface LED         J2         IDE interface LED    J3 (pins 10 -
                                                                 20)

  Speaker              J3 (pins 1 -    Power LED &          J3 (pins 11 -
                            4)         keylock                   15)

  Reset switch         J3 (pins 9 -    32-bit PCI slots       SL1 - SL3
                           19)

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Monitor type select monochrome          JP1              Open

      Monitor type select color               JP1             Closed

     Flash BIOS mode select normal           JP2           pins 2 & 3
                                                              closed

      Flash BIOS mode select recovery         JP2           pins 1 & 2
                                                              closed

     Flash BIOS write protect                JP3           pins 1 & 2
      disabled                                                closed

      Flash BIOS write protect enabled        JP3           pins 2 & 3
                                                              closed

     CMOS memory normal operation            JP7              Open

      CMOS memory clear                       JP7             Closed

                DRAM CONFIGURATION

      Size            Bank 0           Bank 1

       2MB        (2) 256K x 36         NONE

       4MB        (2) 256K x 36    (2) 256K x 36

       4MB        (2) 512K x 36         NONE

       6MB        (2) 256K x 36    (2) 512K x 36

       6MB        (2) 512K x 36    (2) 256K x 36

       8MB        (2) 512K x 36    (2) 512K x 36

       8MB         (2) 1M x 36          NONE

      10MB        (2) 256K x 36     (2) 1M x 36

      10MB         (2) 1M x 36     (2) 256K x 36

      12MB        (2) 512K x 36     (2) 1M x 36

      12MB         (2) 1M x 36     (2) 512K x 36

      16MB         (2) 1M x 36      (2) 1M x 36

      16MB         (2) 2M x 36          NONE

      18MB        (2) 256K x 36     (2) 2M x 36

      18MB         (2) 2M x 36     (2) 256K x 36

      20MB        (2) 512K x 36     (2) 2M x 36

      20MB         (2) 2M x 36     (2) 512K x 36

      24MB         (2) 1M x 36      (2) 2M x 36

      24MB         (2) 2M x 36      (2) 1M x 36

      32MB         (2) 2M x 36      (2) 2M x 36

      32MB         (2) 4M x 36          NONE

      34MB        (2) 256K x 36     (2) 4M x 36

      34MB         (2) 4M x 36     (2) 256K x 36

      36MB        (2) 512K x 36     (2) 4M x 36

      36MB         (2) 4M x 36     (2) 512K x 36

      40MB         (2) 1M x 36      (2) 4M x 36

      40MB         (2) 4M x 36      (2) 1M x 36

      48MB         (2) 2M x 36      (2) 4M x 36

      48MB         (2) 4M x 36      (2) 2M x 36

      64MB         (2) 4M x 36      (2) 4M x 36

      64MB         (2) 8M x 36          NONE

      66MB        (2) 256K x 36     (2) 8M x 36

      66MB         (2) 8M x 36     (2) 256K x 36

            DRAM CONFIGURATION (CONT)

      Size            Bank 0           Bank 1

      68MB        (2) 512K x 36     (2) 8M x 36

      68MB         (2) 8M x 36     (2) 512K x 36

      72MB         (2) 1M x 36      (2) 8M x 36

      72MB         (2) 8M x 36      (2) 1M x 36

      80MB         (2) 2M x 36      (2) 8M x 36

      80MB         (2) 8M x 36      (2) 2M x 36

      96MB         (2) 4M x 36      (2) 8M x 36

      96MB         (2) 8M x 36      (2) 4M x 36

      128MB        (2) 8M x 36      (2) 8M x 36

            CACHE CONFIGURATION

     Size          Bank 0        Bank 1

     64KB        (4) 8K x 8    (4) 8K x 8

     128KB       (4) 32K x 8      NONE

     256KB       (4) 32K x 8   (4) 32K x 8

                  CACHE TAG CONFIGURATION

     Size        TAG (U18)      TAG (U35)      TAG (U36)

     64KB        (1) 8K x 8    (1) 64K x 1    (1) 64K x 1

     128KB       (1) 8K x 8    (1) 64K x 1    (1) 64K x 1

     256KB       (1) 8K x 8    (1) 64K x 1    (1) 64K x 1

                             CACHE JUMPER CONFIGURATION

  Size       RA1         RA2          RA3          RA4          RA5          RA6

  64KB       Not          Not      Installed        Not          Not      Installed
          installed   installed                 installed    installed

  128KB      Not      Installed        Not          Not      Installed       Not
          installed                installed    installed                 installed

  256KB   Installed       Not          Not      Installed        Not         Not
                      installed    installed                 installed    installed

                          CPU TYPE CONFIGURATION

       Type               RN14              RN15               RN16

      80486SX         Not installed     Not installed       Installed

     ODP486SX         Not installed       Installed       Not installed

      80487SX         Not installed       Installed       Not installed

    80486DX/DX2         Installed       Not installed     Not installed

      Pentium         Not installed       Installed       Not installed
     Overdrive

   CPU SPEED CONFIGURATION

  Speed      JP4       JP5

  25MHz     Closed    Closed

  33MHz      Open     Closed

  50iMHz    Closed    Closed

  66iMHz     Open     Closed

                       PCI IRQ CONFIGURATION

       IRQ             RN17             RN18            RN19

      IRQ5          Installed      Not installed    Not installed

      IRQ11       Not installed      Installed      Not installed

      IRQ15       Not installed    Not installed      Installed

