UNIDENTIFIED

AC 486 MODEL PGA

Processor           80486SX/80486DX/80486DX2
Processor Speed     20/25/33/50(internal)/66(internal)MHz
Chip Set            ACC
Max. Onboard DRAM   32MB
Cache               None
BIOS                AMI
Dimensions          254mm x 236mm
I/O Options         None
NPU Options         None

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  External battery            J1       Reset switch                J4

  Turbo LED                   J2       Speaker                     J5

  Turbo switch                J3       Power LED & keylock         J6

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Monitor type select monochrome           JP1           pins 1 & 2
                                                              closed

      Monitor type select color                JP1           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

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

      16MB        (4) 4M x 9         NONE

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

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

                          CPU TYPE CONFIGURATION

     Type         Location          JP3           JP4           JP5

    80486SX       Primary           N/A          Open        pins 2 & 3
                                                               closed

    80487SX       Upgrade        pins 1 & 2     Closed          N/A
                                  closed

    80486DX       Primary           N/A          Open       pins 1 & 2, 3
                                                             & 4 closed

    80486DX       Upgrade        pins 2 & 3     Closed          N/A
                                  closed

   80486DX2       Primary           N/A          Open       pins 1 & 2, 3
                                                             & 4 closed

   80486DX2       Upgrade        pins 2 & 3     Closed          N/A
                                  closed