EPSON, INC.

PROGRESSION 745-MA

Processor        80486SX/80487SX/80486DX/ODP487SX/80486DX2
Processor Speed  25/33/66iMHz (depending on CPU card installed)
Chip Set         UMC
Max. Onboard     128MB
DRAM
SRAM Cache       None (system uses DRAM as virtual cache)
BIOS             Epson/Phoenix
Dimensions       218mm x 330mm
I/O Options      32-bit CPU card, floppy drive interface, IDE interface,
                 parallel port, PS/2 keyboard connector, PS/2 mouse port,
                 serial port,

                 VGA daughterboard, VGA feature connector
NPU Options      4167(on some versions of the CPU card)

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                                CONNECTIONS

  Purpose                Location    Purpose                    Location

  External battery        BATT1      IDE interface LED            CN10

  PS/2 mouse port          CN1       Floppy drive interface       CN11

  PS/2 keyboard            CN2       IDE interface                CN12
  connector

  Serial port              CN3       Power/Turbo LED              CN13

  Parallel port            CN4       Speaker                      CN15

  Chassis fan power        CN5       VGA daughterboard          CN23-CN26

  32-bit CPU card          CN9       VGA feature connector        JP8

                        USER CONFIGURABLE SETTINGS

                Function                      Jumper         Position

  »   Factory configured - do not alter        JP1           pins 1 & 2
                                                              closed

  »   Factory configured - do not alter        JP2           pins 1 & 2
                                                              closed

  »   Monitor type select color                JP5           pins 1 & 2
                                                              closed

      Monitor type select monochrome           JP5           pins 2 & 3
                                                              closed

  »   System password enabled                  JP6           pins 2 & 3
                                                              closed

      System password disabled                 JP6           pins 1 & 2
                                                              closed

  »   Onboard video enabled                    JP7           pins 1 & 2
                                                              closed

      Onboard video disabled                   JP7           pins 2 & 3
                                                              closed

  »   Factory configured - do not alter        JP9           pins 1 & 2
                                                              closed

  Note: JP9 is not present on some revisions. The location of JP9 is
  unknown.

                     PS/2 MOUSE CONFIGURABLE SETTINGS

          Function                     JP3                    JP4

  »          Enabled            pins 1 & 2 closed      pins 2 & 3 closed

             Disabled           pins 2 & 3 closed      pins 1 & 2 closed

                DRAM CONFIGURATION

      Size            Bank 0           Bank 1

       1MB        (1) 256K x 36         NONE

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

       4MB         (1) 1M x 36          NONE

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

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

      16MB         (1) 4M x 36          NONE

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

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

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

      64MB         (1) 16M x 36         NONE

      65MB         (1) 16M x 36     (1) 1M x 36

      68MB         (1) 16M x 36     (1) 4M x 36

      80MB         (1) 16M x 36     (1) 4M x 36

      128MB        (1) 16M x 36     (1) 16M x 36

Processor       80486SX/80487SX/ODP486SX
Processor Speed 25MHz
NPU Options     None

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                         CPU CONFIGURATION JUMPERS

                  Type                                  W1

  »   80486SX PQFP                               pins 1 & 2 closed

      80487SX PGA                                pins 1 & 2 closed

      ODP486SX                                   pins 1 & 2 closed

Processor       80486DX/ODP486DX
Processor Speed 33MHz
NPU Options     4167

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                         CPU CONFIGURATION JUMPERS

         Type                 W1                W2               W3

  »   80486DX PQFP         pins 1 & 2       pins 1 & 2       pins 1 & 2
                            closed            closed           closed

      ODP486DX PGA         pins 1 & 2       pins 1 & 2       pins 2 & 3
                            closed            closed           closed

Processor       80486DX2
Processor Speed 33/66(internal)MHz
NPU Options     4167

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