ASUS COMPUTER INTERNATIONAL

ISA-486SV2 (VERSION 2.4)

Processor        80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor Speed  20/25/33/40/50(internal)/50/66(internal)MHz
Chip Set         SIS
Max. Onboard DRAM32MB
Cache            64/128/256KB
BIOS             AMI
Dimensions       230mm x 218mm
I/O Options      None
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  External battery           BCON1     Reset switch               CON3

  Turbo switch               CON1      Speaker                    CON4

  Turbo LED                  CON2      Power LED & keylock        CON5

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Battery select internal                 BJP1            Closed

      Battery select external                 BJP1             Open

  »   Monitor type select monochrome,          JP2           pins 1 & 2
      EGA and VGA                                             closed

      Monitor type select CGA                  JP2           pins 2 & 3
                                                              closed

  »   Factory configured - do not alter        TP5              N/A

  »   Factory configured - do not alter        TP6              N/A

  »   Factory configured - do not alter        TP7              N/A

  »   Factory configured - do not alter        TP8              N/A

  »   Factory configured - do not alter        TP9              N/A

  »   Factory configured - do not alter       TP10              N/A

  »   Factory configured - do not alter       TP11              N/A

  »   Factory configured - do not alter       TP13              N/A

  »   Factory configured - do not alter       TP14              N/A

  »   Factory configured - do not alter       TP15              N/A

              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

      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

                    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               CJ1                CJ2                CJ3

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

      128KB           pins 1 & 2            Open              Closed
                       closed

      256KB           pins 1 & 2         pins 1 & 2            Open
                       closed              closed

                          CPU TYPE CONFIGURATION

       Type               CPJ1              CPJ2               CPJ3

      80486SX             Open            pins 1 & 2        pins 2 & 3
                                           closed             closed

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

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

     ODP486SX          pins 1 & 2       pins 1 & 2 and      pins 1 & 2
                         closed             3 & 4             closed

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

  Note:Pins designated should be in the closed postion.

                          CPU SPEED CONFIGURATION

    Speed          CS1            CS2            CS3             JP1

    20MHz       pins 1 & 2     pins 2 & 3     pins 2 & 3      pins 2 & 3
                 closed          closed         closed         closed

    25MHz       pins 1 & 2     pins 1 & 2     pins 2 & 3      pins 1 & 2
                 closed          closed         closed         closed

    33MHz       pins 2 & 3     pins 2 & 3     pins 2 & 3      pins 1 & 2
                 closed          closed         closed         closed

    40MHz       pins 1 & 2     pins 2 & 3     pins 2 & 3      pins 1 & 2
                 closed          closed         closed         closed

   50i MHz      pins 1 & 2     pins 1 & 2     pins 2 & 3      pins 1 & 2
                 closed          closed         closed         closed

    50MHz       pins 2 & 3     pins 1 & 2     pins 1 & 2      pins 1 & 2
                 closed          closed         closed         closed

   66i MHz      pins 2 & 3     pins 2 & 3     pins 2 & 3      pins 1 & 2
                 closed          closed         closed         closed