
EPSON, INC.

ACTION TOWER 3000

Processor  80486SX/80487SX/80486SX2/80486DX/80486DX2/80486DX4/Pentium
           Overdrive
Processor  25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   Unidentified
Max.       64MB
Onboard
DRAM
Cache      64/128/256KB
BIOS       Unidentified
Dimensions 254mm x 218mm
I/O        Floppy drive interface, game port, IDE interface, parallel port,
Options    PS/2 mouse port, serial ports (2), VGA port
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  PS/2 mouse port             CN1      VGA port                    CN6

  Game interface              CN2      Floppy drive interface      CN7

  Serial port 1               CN3      IDE interface               CN8

  Serial port 2               CN4      External battery            J30

  Parallel port               CN5      Riser Card                  SL1

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

     Game interface disabled                 J4            pins 2 & 3
                                                              closed

      Game interface enabled                  J4            pins 1 & 2
                                                              closed

     Parallel port LPT select LPT1           J5            pins 1 & 2
                                                              closed

      Parallel port LPT select LPT2           J5            pins 2 & 3
                                                              closed

     Serial port 1 COM select COM1           J6            pins 1 & 2
                                                              closed

      Serial port 1 COM select COM3           J6            pins 2 & 3
                                                              closed

     Serial port 2 COM select COM2           J7            pins 1 & 2
                                                              closed

      Serial port 2 COM select COM4           J7            pins 2 & 3
                                                              closed

     Floppy drive interface enabled          J8            pins 1 & 2
                                                              closed

      Floppy drive interface disabled         J8            pins 2 & 3
                                                              closed

     VGA interrupt enabled                   J10             Closed

      VGA interrupt disabled                  J10              Open

     Battery type select internal            J30           pins 2 & 3
                                                              closed

      Battery type select external            J30             Closed

      CMOS memory clear                       J30           pins 3 & 4
                                                              closed

     Parallel port enabled                   JA            pins 1 & 2
                                                              closed

      Parallel port disabled                  JA            pins 2 & 3
                                                              closed

     Serial port 1 enabled                   JC            pins 1 & 2
                                                              closed

      Serial port 1 disabled                  JC            pins 2 & 3
                                                              closed

     Serial port 2 enabled                   JD            pins 1 & 2
                                                              closed

      Serial port 2 disabled                  JD            pins 2 & 3
                                                              closed

                DRAM CONFIGURATION

      Size            Bank 0           Bank 1

       1MB        (1) 256K x 36         NONE

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

       2MB        (1) 512K x 36         NONE

       3MB        (1) 512K x 36    (1) 256K x 36

       3MB        (1) 256K x 36    (1) 512K x 36

       4MB         (1) 1M x 36          NONE

       5MB         (1) 1M x 36     (1) 256K x 36

       6MB         (1) 1M x 36     (1) 512K x 36

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

       8MB         (1) 2M x 36          NONE

       9MB         (1) 2M x 36     (1) 256K x 36

      10MB         (1) 2M x 36     (1) 512K 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

      17MB         (1) 4M x 36     (1) 256K x 36

      18MB         (1) 4M x 36     (1) 512K x 36

      20MB         (1) 4M x 36      (1) 1M x 36

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

      32MB         (1) 4M x 36      (1) 4M x 36

            DRAM CONFIGURATION (CONT)

      Size            Bank 0           Bank 1

      32MB         (1) 8M x 36          NONE

      33MB         (1) 8M x 36     (1) 256K x 36

      34MB         (1) 8M x 36     (1) 512K x 36

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

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

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

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

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

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

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

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

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

                        CACHE JUMPER CONFIGURATION

    Size          J23            J24             J25             J26

    64KB       pins 1 & 2     pins 1 & 2        Open          pins 2 & 3
                closed          closed                         closed

   128KB       pins 2 & 3     pins 1 & 2      pins 1 & 2      pins 1 & 2
                closed          closed         closed          closed

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

                          CPU TYPE CONFIGURATION

           Type                      J11                     J13

          80486SX                   Open              pins 2 & 3 closed

          80487SX             pins 2 & 3 closed       pins 1 & 2, 3 & 4
                                                           closed

         80486SX2            pins 1 & 2 closed or     pins 2 & 3 closed
                                    Open

          80486DX             pins 1 & 2 closed       pins 1 & 2, 3 & 4
                                                           closed

         80486DX2             pins 1 & 2 closed       pins 1 & 2, 3 & 4
                                                           closed

         80486DX4             pins 1 & 2 closed       pins 1 & 2, 3 & 4
                                                           closed

     Pentium Overdrive        pins 2 & 3 closed       pins 1 & 2, 3 & 4
                                                           closed

                CPU SPEED CONFIGURATION

           Speed                        J17

           25MHz                 pins 5 & 6 closed

           33MHz                 pins 1 & 2 closed

           40MHz             pins 1 & 2, 3 & 4 closed

           50iMHz                pins 5 & 6 closed

           50MHz                 pins 3 & 4 closed

           66iMHz                pins 1 & 2 closed

           75iMHz                pins 5 & 6 closed

          100iMHz                pins 1 & 2 closed

                         CPU VOLTAGE CONFIGURATION

         Voltage                    J31                     J33

        3.3/3.45v             pins 5 & 6, 7 & 8      pins 1 & 2 closed
                                   closed

           3.6v               pins 5 & 6, 7 & 8      pins 2 & 3 closed
                                   closed

            5v                pins 1 & 2, 3 & 4             Open
                                   closed

                           VIDEO CONFIGURATION

         Setting                   J14                      J15

  On board VGA enabled            Closed                   Closed

  On board VGA disabled            Open                     Open

                 IDE INTERFACE CONFIGURATION

       Setting                JB                   JE

       Enabled         pins 1 & 2 closed   pins 1 & 2 closed

      Disabled         pins 2 & 3 closed   pins 2 & 3 closed

