
WYSE TECHNOLOGY, INC.

WYSE DECISION 486GSI

Processor       80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive
Processor Speed 25/33/50(internal)/50/66(internal)MHz
Chip Set        Unidentified
Max. Onboard    64MB
DRAM
Cache           128/256KB
BIOS            Unidentified
Dimensions      254mm x 218mm
I/O Options     PS/2 mouse port, parallel port, serial ports (2), VGA
                port, VGA feature connector, floppy drive interface, IDE
                interface, riser slot
NPU Options     None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  Floppy drive              CN1        Speaker                   J11
  interface

  IDE interface             CN2        Power LED &               J12
                                       keylock

  VGA port                  CN3        Reset switch              J13

  Parallel port             CN4        Chassis fan power         J15

  Serial port 1             CN5        Turbo LED                JP29

  Serial port 2             CN6        IDE interface LED        JP31

  PS/2 mouse port           CN7        Turbo switch             JP32

  External battery          J1         LED connector        JP38 pins 3 -
                                                                 10

  VGA feature               J9         Riser Card                SL1
  connector

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Battery type select internal            JP1           pins 1 & 2
                                                              closed

      Battery type select external            JP1              Open

      CMOS memory clear                       JP1           pins 2 & 3
                                                              closed

     VGA controller enabled                  JP2           pins 1 & 2
                                                              closed

      VGA controller disabled                 JP2           pins 2 & 3
                                                              closed

     VGA IRQ9 enabled                        JP3           pins 1 & 2
                                                              closed

      VGA IRQ9 disabled                       JP3           pins 2 & 3
                                                              closed

     Speaker type select internal            JP28          pins 2 & 3
                                                              closed

      Speaker type select external            JP28          pins 1 & 2
                                                              closed

     Turbo LED enabled                       JP29          pins 1 & 2
                                                              closed

      Turbo LED disabled                      JP29          pins 2 & 3
                                                              closed

     Turbo switch enabled                    JP32          pins 1 & 2
                                                              closed

      Turbo enabled disabled                  JP32          pins 2 & 3
                                                              closed

     Parallel port enabled                   JP33          pins 1 & 2
                                                              closed

      Parallel port disabled                  JP33          pins 2 & 3
                                                              closed

     IDE interface enabled                   JP34          pins 1 & 2
                                                              closed

      IDE interface disabled                  JP34          pins 2 & 3
                                                              closed

     Floppy drive interface enabled          JP35          pins 1 & 2
                                                              closed

      Floppy drive interface disabled         JP35          pins 2 & 3
                                                              closed

     Serial port 1 enabled                   JP36          pins 1 & 2
                                                              closed

      Serial port 1 disabled                  JP36          pins 2 & 3
                                                              closed

     Serial port 2 enabled                   JP37          pins 1 & 2
                                                              closed

      Serial port 2 disabled                  JP37          pins 2 & 3
                                                              closed

                            DRAM CONFIGURATION

     Size         Bank 0        Bank 1         Bank 2          Bank 3

     4MB        (1) 1M x 36      NONE           NONE            NONE

     5MB        (1) 1M x 36    (1) 256K x       NONE            NONE
                                  36

     6MB        (1) 1M x 36    (1) 256K x     (1) 256K x        NONE
                                  36             36

     7MB        (1) 1M x 36    (1) 256K x     (1) 256K x    (1) 256K x 36
                                  36             36

     8MB        (1) 1M x 36   (1) 1M x 36       NONE            NONE

     9MB        (1) 1M x 36   (1) 1M x 36     (1) 256K x        NONE
                                                 36

     10MB       (1) 1M x 36   (1) 1M x 36     (1) 256K x    (1) 256K x 36
                                                 36

     12MB       (1) 1M x 36   (1) 1M x 36    (1) 1M x 36        NONE

     13MB       (1) 1M x 36   (1) 1M x 36    (1) 1M x 36    (1) 256K x 36

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

     16MB       (1) 4M x 36      NONE           NONE            NONE

     17MB       (1) 4M x 36    (1) 256K x       NONE            NONE
                                  36

     18MB       (1) 4M x 36    (1) 256K x     (1) 256K x        NONE
                                  36             36

     19MB       (1) 4M x 36    (1) 256K x     (1) 256K x    (1) 256K x 36
                                  36             36

     20MB       (1) 4M x 36   (1) 1M x 36       NONE            NONE

     21MB       (1) 4M x 36   (1) 1M x 36     (1) 256K x        NONE
                                                 36

     22MB       (1) 4M x 36   (1) 1M x 36     (1) 256K x    (1) 256K x 36
                                                 36

     24MB       (1) 4M x 36   (1) 1M x 36    (1) 1M x 36        NONE

                        DRAM CONFIGURATION (CONT)

     Size         Bank 0        Bank 1         Bank 2          Bank 3

     25MB       (1) 4M x 36   (1) 1M x 36    (1) 1M x 36    (1) 256K x 36

     28MB       (1) 4M x 36   (1) 1M x 36    (1) 1M x 36     (1) 1M x 36

     32MB       (1) 4M x 36   (1) 4M x 36       NONE            NONE

     33MB       (1) 4M x 36   (1) 4M x 36     (1) 256K x        NONE
                                                 36

     34MB       (1) 4M x 36   (1) 4M x 36     (1) 256K x    (1) 256K x 36
                                                 36

     36MB       (1) 4M x 36   (1) 4M x 36    (1) 1M x 36        NONE

     37MB       (1) 4M x 36   (1) 4M x 36    (1) 1M x 36    (1) 256K x 36

     40MB       (1) 4M x 36   (1) 4M x 36    (1) 1M x 36     (1) 1M x 36

     48MB       (1) 4M x 36   (1) 4M x 36    (1) 4M x 36        NONE

     49MB       (1) 4M x 36   (1) 4M x 36    (1) 4M x 36    (1) 256K x 36

     52MB       (1) 4M x 36   (1) 4M x 36    (1) 4M x 36     (1) 1M x 36

     64MB       (1) 4M x 36   (1) 4M x 36    (1) 4M x 36     (1) 4M x 36

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

     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           JP6            JP7            JP8             JP9

    None          Open            Open           Open           Open

    128KB       pins 2 & 3     pins 1 & 2     pins 2 & 3      pins 2 & 3
                 closed          closed         closed         closed

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

                          CPU TYPE CONFIGURATION

           Type                     JP12                    JP13

          80486SX             pins 2 & 3 closed             Open

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

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

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

     Pentium Overdrive        pins 1 & 2, 3 & 4       pins 2 & 3 closed
                                   closed

                          CPU SPEED CONFIGURATION

      Speed              JP14              JP15               JP16

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

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

      50iMHz          pins 2 & 3         pins 2 & 3         pins 1 & 2
                        closed            closed             closed

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

      66iMHz          pins 1 & 2         pins 2 & 3         pins 1 & 2
                        closed            closed             closed

              VRAM CONFIGURATION

      Size          Bank 0          Bank 1

     512KB        (4) 256K x 4       NONE

      1MB         (4) 256K x 4   (4) 256K x 4

