
ACER, INC.

CMPD4700ZIF

Processor        80486DX/80486DX2
Processor Speed  20/25/33/40/50(internal)/50/66(internal)MHz
Chip Set         Unidentified
Video Chip Set   None
Maximum Onboard  32MB
Memory
Maximum Video    None
Memory
Cache            64/128/256KB
BIOS             Unidentified
Dimensions       254mm x 218mm
I/O Options      32-bit VESA local bus slot, serial ports (2), game
                 interface, parallel port, floppy drive interface, IDE
                 interface
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  External battery            J2       Speaker                    J11

  Serial port 2               J4       Reset switch               J12

  Serial port 1               J5       IDE interface LED          J13

  Game interface              J6       Turbo switch               J14

  Parallel port               J7       Turbo LED                  J15

  Floppy drive                J8       Power LED & keylock        J16
  interface

  IDE interface               J9       32-bit VESA local bus      SL1
                                       slot

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      Battery type select internal             W1             Closed

      Battery type select external             W1              Open

      Monitor type select color                W2             Closed

      Monitor type select monochrome           W2              Open

     Factory configured - do not alter        W8           Pins 2 & 3
                                                              closed

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       None

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         None

      5MB         (4) 256K x 9    (4) 1M x 9

      5MB         (4) 1M x 9     (4) 256K x 9

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         None

      17MB        (4) 256K x 9    (4) 4M x 9

      17MB        (4) 4M x 9     (4) 256K x 9

      20MB        (4) 1M x 9      (4) 4M x 9

      20MB        (4) 4M x 9      (4) 1M x 9

      32MB        (4) 4M x 9      (4) 4M x 9

            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 0          TAG 1          TAG 2

     64KB           None        (1) 8K x 8    (1) 64K x 1

     128KB          None        (1) 8K x 8    (1) 64K x 1

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

                        CACHE JUMPER CONFIGURATION

     Size           W4             W5             W6             W13

     64KB        Pins 2 & 3       Open           Open         Pins 2 & 3
                  closed                                       closed

    128KB        Pins 1 & 2       Open          Closed        Pins 1 & 2
                  closed                                       closed

    256KB        Pins 2 & 3      Closed         Closed        Pins 2 & 3
                  closed                                       closed

       CACHE JUMPER CONFIGURATION (CONT)

   Size      W19       W20      W21       W22

   64KB     Open      Open      Open      Open

  128KB     Open      Open      Open     Closed

  256KB     Open      Open     Closed    Closed

           CPU SPEED SELECTION

  Speed      W14        W15       W16

  20MHz     Closed     Open      Open

  25MHz      Open     Closed    Closed

  33MHz      Open     Closed     Open

  40MHz      Open      Open     Closed

  50iMHz     Open     Closed    Closed

  50MHz      Open     Closed    Closed

  66iMHz     Open     Closed     Open

                            CPU TYPE SELECTION

     Type       W3      W7      W9      W17     W18       W23       W24

   80486DX     1 & 2   1 & 2   1 & 2   2 & 3   1 & 2      Open     2 & 3

  80486DX-50   1 & 2   2 & 3   1 & 2   2 & 3   1 & 2     Closed    2 & 3

   80486DX2    1 & 2   1 & 2   1 & 2   2 & 3   1 & 2      Open     2 & 3

  Note: Pins designated should be in the closed position.

  VL BUS WAIT STATE SELECTION

    Setting           W11

       0              Open

       1             Closed

      VL BUS SPEED SELECTION

   Speed        W10        W12

  <= 33MHz     Open       Closed

   40MHz      Closed       Open

   50MHz       Open        Open

