
TMC RESEARCH CORPORATION

PET48PM

Processor        80486SX/80487SX/80486DX/80486DX2/SL Pentium
                 Overdrive/Pentium Overdrive
Processor Speed  25/33/40/50(internal)/66(internal)MHz
Chip Set         OPTI
Max. Onboard     256MB
DRAM
Cache            128/256KB
BIOS             Unidentified
Dimensions       330mm x 254mm
I/O Options      32-bit VESA local bus slots (3)
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                 Location      Purpose               Location

  External battery           J2         Reset switch         J7 pins 9 &
                                                                 19

  Hard drive LED from        J3         Hard drive LED       J7 pins 10 &
  controller                            to case                  20

  Speaker               J7 pins 1 - 4   Power LED &          J7 pins 11 -
                                        keylock                  15

  Turbo switch           J7 pins 7 &    32-bit VESA           SL1 - SL3
                             17         local bus slots

  Turbo LED              J7 pins 8 &
                             18

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     CMOS memory normal operation        JP1 pins 1 &         Open
                                               2

      CMOS memory clear                   JP1 pins 1 &        Closed
                                               2

     Battery type select internal        JP1 pins 2 &        Closed
                                               3

      Battery type select external        JP1 pins 2 &         Open
                                               3

     Monitor type select color               JP2             Closed

      Monitor type select monochrome          JP2              Open

     ADS delay disabled (CPU  33MHz)        JP7           pins 1 & 2
                                                              closed

      ADS delay enabled (CPU >33MHz)          JP7           pins 2 & 3
                                                              closed

                           DRAM CONFIGURATION 1

      Size          Bank 0        Bank 1         Bank 2         Bank 3

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

      8MB         (1) 2M x 36      NONE           NONE           NONE

      12MB        (1) 2M x 36   (1) 1M x 36       NONE           NONE

      16MB        (1) 2M x 36   (1) 2M x 36       NONE           NONE

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

      24MB        (1) 2M x 36   (1) 4M x 36       NONE           NONE

      32MB        (1) 8M x 36      NONE           NONE           NONE

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

      40MB        (1) 2M x 36   (1) 8M x 36       NONE           NONE

      40MB        (1) 8M x 36   (1) 2M x 36       NONE           NONE

      48MB        (1) 8M x 36   (1) 4M x 36       NONE           NONE

      64MB        (1) 8M x 36   (1) 8M x 36       NONE           NONE

      64MB         (1) 16M x       NONE           NONE           NONE
                      36

      72MB        (1) 2M x 36    (1) 16M x        NONE           NONE
                                    36

      96MB        (1) 8M x 36    (1) 16M x        NONE           NONE
                                    36

     128MB         (1) 32M x       NONE           NONE           NONE
                      36

     132MB         (1) 32M x    (1) 1M x 36       NONE           NONE
                      36

     136MB        (1) 2M x 36    (1) 32M x        NONE           NONE
                                    36

     136MB         (1) 32M x    (1) 2M x 36       NONE           NONE
                      36

     144MB         (1) 32M x    (1) 4M x 36       NONE           NONE
                      36

     160MB        (1) 8M x 36    (1) 32M x        NONE           NONE
                                    36

     160MB         (1) 32M x    (1) 8M x 36       NONE           NONE
                      36

     192MB         (1) 32M x     (1) 16M x        NONE           NONE
                      36            36

     256MB         (1) 32M x     (1) 32M x        NONE           NONE
                      36            36

                           DRAM CONFIGURATION 2

     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

                       DRAM CONFIGURATION 2 (CON'T)

      Size          Bank 0        Bank 1         Bank 2         Bank 3

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

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

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

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

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

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

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

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

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

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

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

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

      64MB         (1) 16M x       NONE           NONE           NONE
                      36

      72MB        (1) 1M x 36   (1) 1M x 36    (4) 16M x 9       NONE

      80MB        (1) 4M x 36    (1) 16M x        NONE           NONE
                                    36

      84MB        (1) 1M x 36   (1) 4M x 36    (4) 16M x 9       NONE

      84MB        (1) 4M x 36    (1) 16M x     (4) 1M x 9        NONE
                                    36

      88MB        (1) 1M x 36   (1) 1M x 36    (4) 4M x 9    (4) 16M x 9

      88MB        (1) 4M x 36    (1) 16M x     (4) 1M x 9     (4) 1M x 9
                                    36

      96MB        (1) 4M x 36   (1) 4M x 36    (4) 16M x 9       NONE

      96MB        (1) 4M x 36    (1) 16M x     (4) 4M x 9        NONE
                                    36

     100MB        (1) 1M x 36   (1) 4M x 36    (4) 4M x 9    (4) 16M x 9

     100MB        (1) 4M x 36    (1) 16M x     (4) 4M x 9     (4) 1M x 9
                                    36

     112MB        (1) 4M x 36   (1) 4M x 36    (4) 4M x 9    (4) 16M x 9

     112MB        (1) 4M x 36    (1) 16M x     (4) 4M x 9     (4) 4M x 9
                                    36

     128MB         (1) 16M x     (1) 16M x        NONE           NONE
                      36            36

     132MB         (1) 16M x     (1) 16M x     (4) 1M x 9        NONE
                      36            36

     136MB        (1) 1M x 36   (1) 1M x 36    (4) 16M x 9   (4) 16M x 9

     136MB         (1) 16M x     (1) 16M x     (4) 1M x 9     (4) 1M x 9
                      36            36

     144MB        (1) 4M x 36    (1) 16M x     (4) 16M x 9       NONE
                                    36

     144MB         (1) 16M x     (1) 16M x     (4) 4M x 9        NONE
                      36            36

     148MB        (1) 1M x 36   (1) 4M x 36    (4) 16M x 9   (4) 16M x 9

     148MB         (1) 16M x     (1) 16M x     (4) 4M x 9     (4) 1M x 9
                      36            36

     160MB        (1) 4M x 36   (1) 4M x 36    (4) 16M x 9   (4) 16M x 9

     160MB        (1) 4M x 36    (1) 16M x     (4) 4M x 9    (4) 16M x 9
                                    36

     160MB         (1) 16M x     (1) 16M x     (4) 4M x 9     (4) 4M x 9
                      36            36

     192MB         (1) 16M x     (1) 16M x     (4) 16M x 9       NONE
                      36            36

     208MB        (1) 4M x 36    (1) 16M x     (4) 16M x 9   (4) 16M x 9
                                    36

     208MB         (1) 16M x     (1) 16M x     (4) 4M x 9    (4) 16M x 9
                      36            36

     256MB         (1) 16M x     (1) 16M x     (4) 16M x 9   (4) 16M x 9
                      36            36

                           DRAM CONFIGURATION 3

      Size          Bank 0        Bank 1         Bank 2         Bank 3

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

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

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

      16MB        (1) 2M x 36      NONE        (4) 1M x 9     (4) 1M x 9

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

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

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

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

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

      28MB        (1) 2M x 36      NONE        (4) 1M x 9     (4) 4M x 9

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

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

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

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

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

      40MB        (1) 8M x 36      NONE        (4) 1M x 9     (4) 1M x 9

      40MB        (1) 2M x 36      NONE        (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

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

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

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

      52MB        (1) 8M x 36      NONE        (4) 1M x 9     (4) 4M x 9

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

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

      64MB        (1) 8M x 36      NONE        (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

      64MB           NONE          NONE        (4) 16M x 9       NONE

      72MB         (1) 16M x       NONE        (4) 1M x 9     (4) 1M x 9
                      36

      80MB           NONE          NONE        (4) 4M x 9    (4) 16M x 9

      84MB         (1) 16M x       NONE        (4) 1M x 9     (4) 4M x 9
                      36

      84MB        (1) 1M x 36      NONE        (4) 4M x 9    (4) 16M x 9

      88MB        (1) 2M x 36      NONE        (4) 4M x 9    (4) 16M x 9

      88MB        (1) 4M x 36    (1) 16M x     (4) 1M x 9     (4) 1M x 9
                                    36

      88MB        (1) 1M x 36   (1) 1M x 36    (4) 4M x 9    (4) 16M x 9

      96MB         (1) 16M x       NONE        (4) 4M x 9     (4) 4M x 9
                      36

      96MB        (1) 4M x 36      NONE        (4) 4M x 9    (4) 16M x 9

     100MB        (1) 4M x 36    (1) 16M x     (4) 1M x 9     (4) 4M x 9
                                    36

     100MB        (1) 4M x 36   (1) 1M x 36    (4) 4M x 9    (4) 16M x 9

     112MB        (1) 8M x 36      NONE        (4) 4M x 9    (4) 16M x 9

     112MB        (1) 4M x 36    (1) 16M x     (4) 4M x 9     (4) 4M x 9
                                    36

     112MB        (1) 4M x 36   (1) 4M x 36    (4) 4M x 9    (4) 16M x 9

     128MB           NONE          NONE        (4) 16M x 9   (4) 16M x 9

     132MB        (1) 1M x 36      NONE        (4) 16M x 9   (4) 16M x 9

                       DRAM CONFIGURATION 3 (CON'T)

      Size          Bank 0        Bank 1         Bank 2         Bank 3

     136MB        (1) 2M x 36      NONE        (4) 16M x 9   (4) 16M x 9

     136MB         (1) 32M x       NONE        (4) 1M x 9     (4) 1M x 9
                      36

     136MB         (1) 16M x     (1) 16M x     (4) 1M x 9     (4) 1M x 9
                      36            36

     136MB        (1) 1M x 36   (1) 1M x 36    (4) 16M x 9   (4) 16M x 9

     144MB         (1) 16M x       NONE        (4) 4M x 9    (4) 16M x 9
                      36

     144MB        (1) 4M x 36      NONE        (4) 16M x 9   (4) 16M x 9

     148MB         (1) 32M x       NONE        (4) 1M x 9     (4) 4M x 9
                      36

     148MB         (1) 16M x     (1) 16M x     (4) 1M x 9     (4) 4M x 9
                      36            36

     148MB        (1) 4M x 36   (1) 1M x 36    (4) 16M x 9   (4) 16M x 9

     160MB        (1) 8M x 36      NONE        (4) 16M x 9   (4) 16M x 9

     160MB         (1) 32M x       NONE        (4) 4M x 9     (4) 4M x 9
                      36

     160MB         (1) 16M x     (1) 16M x     (4) 4M x 9     (4) 4M x 9
                      36            36

     160MB        (1) 4M x 36    (1) 16M x     (4) 4M x 9    (4) 16M x 9
                                    36

     160MB        (1) 4M x 36   (1) 4M x 36    (4) 16M x 9   (4) 16M x 9

     192MB         (1) 16M x       NONE        (4) 16M x 9   (4) 16M x 9
                      36

     208MB         (1) 32M x       NONE        (4) 4M x 9    (4) 16M x 9
                      36

     208MB         (1) 16M x     (1) 16M x     (4) 4M x 9    (4) 16M x 9
                      36            36

     208MB        (1) 4M x 36    (1) 16M x     (4) 16M x 9   (4) 16M x 9
                                    36

     256MB         (1) 32M x       NONE        (4) 16M x 9   (4) 16M x 9
                      36

     256MB         (1) 16M x     (1) 16M x     (4) 16M x 9   (4) 16M x 9
                      36            36

                     DRAM RESISTOR CONFIGURATION

  Configuration         RND              RNE              RNF

        1            Installed      Not installed    Not installed

        2          Not installed      Installed      Not installed

        3          Not installed    Not installed      Installed

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

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

     128KB      (4) 32K x 8        NONE       (1) 16K x 8

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

     256KB      (4) 32K x 8    (4) 32K x 8    (1) 16K x 8

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

                  CACHE JUMPER CONFIGURATION

        Size                 JP5                  JP6

        128KB          pins 1 & 2 closed   pins 1 & 2 closed

        256KB          pins 2 & 3 closed   pins 2 & 3 closed

                          CPU TYPE CONFIGURATION

      Setting             RNA                RNB               RNC

      80486SX        Not installed      Not installed       Installed

      80487SX        Not installed        Installed       Not installed

      80486DX          Installed        Not installed     Not installed

     80486DX2          Installed        Not installed     Not installed

     SL Pentium      Not installed        Installed       Not installed
     Overdrive

      Pentium        Not installed        Installed       Not installed
     Overdrive

                      CPU SPEED CONFIGURATION

      Speed            RNG1             RNG2            RNG3

      25MHz         Installed      Not installed    Not installed

      33MHz       Not installed      Installed      Not installed

      40MHz       Not installed    Not installed      Installed

     50iMHz         Installed      Not installed    Not installed

     66iMHz       Not installed      Installed      Not installed

                       VESA WAIT STATE CONFIGURATION

                  Speed                                RNG3

        VESA wait state select 1 wait                Closed
                    states

         VESA wait state select 0 wait                 Open
                    state

                    VESA LOCAL BUS SPEED CONFIGURATION

                 Speed                                 RNG3

                  >33MHz                             Closed

                    33MHz                             Open

