FRONTIER INDUSTRIAL, INC.

ISA486GSi

Processor             80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor Speed       25/33/40/50(internal)/66(internal)MHz
Chip Set              ALI M1219
Max. Onboard DRAM     32MB
Cache                 None
BIOS                  ACER
Dimensions            220mm x 220mm
I/O Options           None
NPU Options           None

[Image]

                                CONNECTIONS

  Purpose               Location       Purpose              Location

  External           J3 pins 1 & 4     Turbo LED         J4 pins 12 & 13
  battery

  Power LED &        J4 pins 1 - 5     Turbo switch      J4 pins 15,16,&
  keylock                                                      17

  Speaker            J4 pins 7 - 10    Reset switch      J4 pins 19 & 20

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   CMOS memory normal operation             J1              Open

      CMOS memory clear                        J1             Closed

  »   Battery type select internal             J3           pins 2 & 3
                                                              closed

      Battery type select external             J3             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

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

                    CPU TYPE CONFIGURATION

        Type                  J6                   J7

       80486SX               Open          pins 1 & 2 closed

      ODP486SX         pins 1 & 2 closed   pins 2 & 3 closed

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

       80486DX         pins 2 & 3 closed   pins 2 & 3 closed

      80486DX2         pins 2 & 3 closed   pins 2 & 3 closed

                  CPU SPEED CONFIGURATION

  Speed      OSC1       JP8       JP9       JP10      JP11

  20MHz      40MHz     2 & 3     1 & 2     1 & 2     2 & 3

  25MHz      50MHz     1 & 2     2 & 3     1 & 2     2 & 3

  33MHz      66MHz     1 & 2     1 & 2     1 & 2     2 & 3

  50MHz      50MHz     1 & 2     2 & 3     1 & 2     2 & 3

  66iMHz     66MHz     1 & 2     1 & 2     1 & 2     2 & 3

  Note: Pins designated should be in the closed position.