IBM CORPORATION

OPAL 486SLC2 REV C

Processor         CX486SLC2
Processor Speed   50(internal)/66(internal)MHz
Chip Set          IBM
Max. Onboard DRAM 16MB
Cache             64/128KB
BIOS              AMI/MR
Dimensions        254mm x 218mm
I/O Options       32-bit VESA local bus slots (2)
NPU Options       80387SX

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Reset switch                J1       Turbo switch                J4

  Speaker                     J2       External battery           J25

  Power LED & keylock         J3       32-bit VESA local bus   SL1 & SL2
                                       slots

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   CMOS memory normal operation            JP9           pins 2 & 3
                                                              closed

      CMOS memory clear                       JP9           pins 1 & 2
                                                              closed

  »   Password enabled(MR BIOS only)          JP10            Closed

      Password disabled (MR BIOS only)        JP10             Open

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

     512KB        (2) 256K x 9       NONE

      1MB         (2) 256K x 9   (2) 256K x 9

      2MB         (2) 1M x 9         NONE

      4MB         (2) 1M x 9      (2) 1M x 9

      8MB         (2) 4M x 9         NONE

      10MB        (2) 1M x 9      (2) 4M x 9

      16MB        (2) 4M x 9      (2) 4M x 9

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

     64KB       (2) 32K x 8        NONE       (1) 8K x 8

     128KB      (2) 32K x 8    (2) 32K x 8    (1) 32K x 8

        CACHE JUMPER CONFIGURATION

        Size                 JP6

        64KB          pins 2 & 3 closed

        128KB         pins 1 & 2 closed

   CPU SPEED CONFIGURATION

  Speed      JP7       JP8

  50iMHz     Open     Closed

  66iMHz    Closed     Open

  BUS SPEED CONFIGURATION

  CPU speed        JP5

   <=33MHz         Open

    >33MHz        Closed

              VESA ID CONFIGURATION

    ID       JP1       JP2      JP3       JP4

   ID0      Open      Open      Open     Closed

   ID1     Closed    Closed     Open     Closed

   ID2     Closed     Open     Closed    Closed

   ID3      Open     Closed    Closed    Closed