
UNIDENTIFIED

PAT48PR

Processor        80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive
Processor Speed  20/25/33/40(internal)/50(internal)/50/66(internal)MHz
Chip Set         OPTI
Max. Onboard DRAM64MB
Cache            64/128/256KB
BIOS             AMI
Dimensions       330mm x 218mm
I/O Options      32-bit VESA local bus slots (2)
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose              Location      Purpose                  Location

  Speaker               J1 (pins     IDE interface LED      J1 (pins 10 &
                         1-4)        (to case)                  20)

  Power LED &           J1 (pins     IDE interface LED           J2
  keylock               11-15)       (to HDD)

  Turbo switch        J1 (pins 7 &   External battery            J4
                          17)

  Turbo LED           J1 (pins 8 &   32-bit local bus        SL1 & SL2
                          18)        slots

  Reset switch        J1 (pins 9 &
                          19)

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Battery type select internal            JP1           pins 2 & 3
                                                              closed

      Battery type select external            JP1              Open

      CMOS memory clear                       JP1           pins 1 & 2
                                                              closed

     Monitor type select color               JP4             Closed

      Monitor type select monochrome          JP4              Open

                       DRAM CONFIGURATION (GROUP A)

     Size         Bank 0          Bank 1         Bank 2         Bank 3

     1MB        (4) 256K x 9       NONE           NONE           NONE

     2MB        (4) 256K x 9   (4) 256K x 9       NONE           NONE

     4MB        (4) 1M x 9         NONE           NONE           NONE

     5MB        (4) 256K x 9    (4) 1M x 9        NONE           NONE

     6MB        (4) 256K x 9   (4) 256K x 9    (1) 1M x 36       NONE

     8MB        (4) 1M x 9      (4) 1M x 9        NONE           NONE

     9MB        (4) 256K x 9    (4) 1M x 9     (1) 1M x 36       NONE

     10MB       (4) 256K x 9   (4) 256K x 9    (1) 1M x 36   (1) 1M x 36

     12MB       (4) 1M x 9      (4) 1M x 9     (1) 1M x 36       NONE

     13MB       (4) 256K x 9    (4) 1M x 9     (1) 1M x 36   (1) 1M x 36

     16MB       (4) 1M x 9      (4) 1M x 9     (1) 1M x 36   (1) 1M x 36

     16MB       (4) 4M x 9         NONE           NONE           NONE

     20MB       (4) 1M x 9      (4) 4M x 9        NONE           NONE

     20MB       (4) 4M x 9      (4) 1M x 9        NONE           NONE

     24MB       (4) 1M x 9      (4) 4M x 9     (1) 1M x 36       NONE

     24MB       (4) 4M x 9      (4) 1M x 9     (1) 1M x 36       NONE

     28MB       (4) 1M x 9      (4) 4M x 9     (1) 1M x 36   (1) 1M x 36

     28MB       (4) 4M x 9      (4) 1M x 9     (1) 1M x 36   (1) 1M x 36

     32MB       (4) 4M x 9      (4) 4M x 9        NONE           NONE

     36MB       (4) 4M x 9      (4) 4M x 9     (1) 1M x 36       NONE

     40MB       (4) 4M x 9      (4) 4M x 9     (1) 1M x 36   (1) 1M x 36

     48MB       (4) 4M x 9      (4) 4M x 9     (1) 4M x 36       NONE

     52MB       (4) 4M x 9      (4) 4M x 9     (1) 4M x 36   (1) 1M x 36

     52MB       (4) 4M x 9      (4) 1M x 9     (1) 4M x 36   (1) 4M x 36

     64MB       (4) 4M x 9      (4) 4M x 9     (1) 4M x 36   (1) 4M x 36

  Note: Group A -- 30-pin SIMMS = Banks 0 & 1 and 72-pin SIMMS = 2 & 3.

                       DRAM CONFIGURATION (GROUP B)

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     4MB        (1) 1M x 36       NONE           NONE           NONE

     8MB        (1) 1M x 36    (1) 1M x 36       NONE           NONE

     12MB       (1) 1M x 36    (1) 1M x 36    (4) 1M x 9        NONE

     16MB       (1) 1M x 36    (1) 1M x 36    (4) 1M x 9     (4) 1M x 9

     16MB       (1) 4M x 36       NONE           NONE           NONE

     20MB       (1) 4M x 36    (1) 1M x 36       NONE           NONE

     24MB       (1) 4M x 36    (1) 1M x 36    (4) 1M x 9        NONE

     24MB       (1) 1M x 36    (1) 1M x 36    (4) 4M x 9        NONE

     28MB       (1) 1M x 36    (1) 1M x 36    (4) 4M x 9     (4) 1M x 9

     28MB       (1) 4M x 36    (1) 1M x 36    (4) 1M x 9     (4) 1M x 9

     32MB       (1) 4M x 36    (1) 4M x 36       NONE           NONE

     36MB       (1) 4M x 36    (1) 1M x 36    (4) 4M x 9        NONE

     40MB       (1) 1M x 36    (1) 1M x 36    (4) 4M x 9     (4) 4M x 9

     40MB       (1) 4M x 36    (1) 4M x 36    (4) 1M x 9     (4) 1M x 9

     48MB       (1) 4M x 36    (1) 4M x 36    (4) 4M x 9        NONE

     52MB       (1) 4M x 36    (1) 4M x 36    (4) 4M x 9     (4) 1M x 9

     52MB       (1) 4M x 36    (1) 1M x 36    (4) 4M x 9     (4) 4M x 9

     64MB       (1) 4M x 36    (1) 4M x 36    (4) 4M x 9     (4) 4M x 9

  Note: Group B -- = 72-pin SIMMS Banks 0 & 1 and 30-pin SIMMS = 2 & 3.

          DRAM CONFIGURATION (GROUP C)

      Size           Bank 0          Bank 1

      4MB         (1) 1M x 36         NONE

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

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

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

      16MB        (1) 4M x 36         NONE

      24MB        (1) 2M x 36      (1) 4M x 36

      32MB        (1) 8M x 36         NONE

      40MB        (1) 2M x 36      (1) 8M x 36

      40MB        (1) 8M x 36      (1) 2M x 36

      48MB        (1) 8M x 36      (1) 4M x 36

      64MB        (1) 8M x 36      (1) 8M x 36

  Note: Group C -- = 72-pin SIMMS Banks 0 & 1.

                      DRAM TYPE CONFIGURATION

      Group           RNB1/2           RNC1/2          RND1/2

     Group A      Not installed      Installed      Not installed

     Group B      Not installed    Not installed      Installed

     Group C        Installed      Not installed    Not installed

                           CACHE CONFIGURATION

     Size          Bank 0         Bank 1       TAG (U43)      TAG (U44)

     64KB        (4) 8K x 8     (4) 8K x 8    (1) 8K x 8     (1) 64K x 1

     128KB      (4) 32K x 8        NONE       (1) 8K x 8     (1) 64K x 1

     256KB      (4) 32K x 8    (4) 32K x 8    (1) 32K x 8    (1) 64K x 1

                    CACHE JUMPER CONFIGURATION

      Size             RND              RNE              RNF

      64KB          Installed      Not installed    Not installed

      128KB       Not installed      Installed      Not installed

      256KB       Not installed    Not installed      Installed

                          CPU TYPE CONFIGURATION

       Type               RNA3              RNB3               RNC3

      80486SX         Not installed     Not installed       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         JP2         W13        W14          W15         W16

    20MHz      pins 2 & 3     Open      Closed       Open         Open
                closed

    25MHz      pins 2 & 3     Open       Open       Closed        Open
                closed

    33MHz      pins 2 & 3     Open       Open        Open        Closed
                closed

   40iMHz      pins 2 & 3     Open      Closed       Open         Open
                closed

   50iMHz      pins 2 & 3     Open       Open       Closed        Open
                closed

    50MHz      pins 1 & 2     Open       Open       Closed        Open
                closed

   66iMHz      pins 2 & 3     Open       Open        Open        Closed
                closed

                      BUS SPEED CONFIGURATION

    CPU type           JP3              JP5              JP6

   80486DX-50         Closed           Closed          Closed

  All other CPU        Open             Open            Open

                       VESA WAIT STATE CONFIGURATION

   CPU type        VLB cards          W21            W22          W23
                   installed

  80486DX-50           1          pin 1 on W21    pins 2 & 3
                                   & pin 1 on      closed
                                   W22 closed

   All other           2             Closed        Closed      pins 1 & 2
      CPU                                                        closed

