IBM CORPORATION

486SLC2 VESA

Processor              486SLC2
Processor Speed        50(internal)/66(internal)MHz
Chip Set               Unidentified
Video Chip Set         None
Maximum Onboard Memory 16MB
Maximum Video Memory   None
Cache                  64/128/256KB
BIOS                   Award
Dimensions             254mm x 218mm
I/O Options            32-bit VESA local bus slots (3)
NPU Options            80387SX

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  External battery            J4       Speaker                     J8

  Turbo LED                   J5       Power LED & keylock         J9

  Turbo switch                J6       Chassis fan power          JP9

  Reset switch                J7       32-bit VESA local bus   SL1 – SL3
                                       slots

                        USER CONFIGURABLE SETTINGS

                 Function                     Label          Position

  »   Monitor type select color/EGA/VGA        JP10           Closed

      Monitor type select monochrome           JP10            Open

      Battery type select internal             JP11          Pins 2 & 3
                                                              closed

      Battery type select external             JP11          Pins 1 & 2
                                                              closed

  »   CPU memory read/write delay             JP700          Pins 1 & 2
      enabled                                                 closed

      CPU memory read/write delay             JP700          Pins 2 & 3
      disabled                                                closed

              SIMM 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

                    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) 32K x 8

     256KB      (4) 32K x 8    (4) 32K x 8    (1) 32K x 8

                 CACHE JUMPER CONFIGURATION

   Size      JP12      JP13       JP14      JP15      JP16

   64KB      2 & 3     2 & 3     2 & 3     2 & 3     2 & 3

  128KB      1 & 2     1 & 2     1 & 2     1 & 2     1 & 2

  256KB      2 & 3     2 & 3     2 & 3     2 & 3     2 & 3

  Note: Pins designated should be in the closed position.

       CACHE JUMPER CONFIGURATION (CON’T)

   Size      JP11     JP17      JP702     JP703

   64KB      Open     Open      Open      Open

  128KB     Closed    Open     Closed    Closed

  256KB      Open    Closed    Closed    Closed

                        CPU SPEED SELECTION

  Speed      JP1      JP2       JP3       JP4      JP5      JP704

  50iMHz    Closed    Open     Open      Closed   2 & 3     1 & 2

  66iMHz    Closed   Closed    Open      Open     2 & 3     1 & 2

  Note: Pins designated should be in the closed position.

                          CPU ADS DELAY SELECTION

           Setting                   JP201                  JP701

  »          Enabled                 Closed           Pins 1 & 2 closed

             Disabled                 Open            Pins 2 & 3 closed

                        VL BUS WAIT STATE SELECTION

               Setting                                JP18

  »                 0                          Pins 1 & 2 closed

                    1                          Pins 2 & 3 closed

          VL BUS SPEED SELECTION

        Speed                JP19

      <= 33MHz        Pins 1 & 2 closed

       >33 MHz        Pins 2 & 3 closed

                      LOCAL BUS CLOCK DELAY SELECTION

          Setting                    JP7                     JP8

  »         No delay          Pins 1 & 2 closed       Pins 1 & 2 closed

         One gate delay       Pins 2 & 3 closed       Pins 2 & 3 closed