
ADVANCED LOGIC RESEARCH, INC.

MULTIMEDIA EXPRESS

Processor         80486SX/80486DX/80486DX2/Pentium Overdrive
Processor Speed   25/33/50(internal)/66(internal)MHz
Chip Set          ALR
Max. Onboard DRAM 36MB
Cache             64/128/256KB
BIOS              Phoenix
Dimensions        330mm x 218mm
I/O Options       32-bit VESA local bus slots (1), floppy drive interface,
                  IDE interface, parallel port, PS/2 mouse port,serial
                  ports (2), VGA port
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                 Location    Purpose                   Location

  PS/2 mouse port           CN1       VGA port                    CN5

  Serial port 1             CN2       IDE interface               CN6

  Serial port 2             CN3       Floppy drive interface      CN7

  Parallel port             CN4       32-bit VESA local bus       SL1
                                      slot

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

     Password check disabled                 J2            pins 2 & 3
                                                              closed

      Password check enabled                  J2            pins 1 & 2
                                                              closed

     On board battery enabled                J13             Closed

      On board battery disabled               J13              Open

     DRAM parity enabled                     J14              Open

      DRAM parity disabled                    J14             Closed

     On board VGA enabled                    J20           pins 1 & 2
                                                              closed

      On board VGA disabled                   J20           pins 2 & 3
                                                              closed

     Keylock enabled                         J27           pins 2 & 3
                                                              closed

      Keylock disabled                        J27           pins 1 & 2
                                                              closed

                      DRAM CONFIGURATION

      Size          Bank 0          Bank 1          Bank 2

      4MB        (8) 512K x 8        NONE            NONE

      8MB        (8) 512K x 8     (1) 1M x 36        NONE

      12MB       (8) 512K x 8     (1) 1M x 36    (1) 1M x 36

      12MB       (8) 512K x 8     (1) 2M x 36        NONE

      16MB       (8) 512K x 8     (1) 1M x 36    (1) 2M x 36

      20MB       (8) 512K x 8     (1) 4M x 36        NONE

      20MB       (8) 512K x 8     (1) 2M x 36    (1) 2M x 36

      24MB       (8) 512K x 8     (1) 1M x 36    (1) 4M x 36

      36MB       (8) 512K x 8     (1) 4M x 36    (1) 4M x 36

  Note: Bank 0 is factory installed and is not configurable.

                    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          J5              J6             J23             J24

    64KB       pins 2 & 3     pins 2 & 3        Open          pins 1 & 2
                closed          closed                         closed

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

   256KB       pins 1 & 2     pins 1 & 2      pins 1 & 2      pins 2 & 3
                closed          closed         closed          closed

                          CPU TYPE CONFIGURATION

        Type                J9                J10               J11

   80486SX (PQFP)          Open             Closed             Open

     80486 (PGA)           Open              Open              Open

       80486DX            Closed            Closed             Open

      80486DX2            Closed            Closed             Open

  Pentium Overdrive        Open             Closed            Closed

         CPU SPEED CONFIGURATION

        Speed                J17

        25MHz         pins 4 & 8 closed

        33MHz         pins 3 & 6 closed

       50iMHz         pins 4 & 8 closed

       66iMHz         pins 3 & 6 closed

         CPU CLOCK CONFIGURATION

     Gate delay              J15

    1 gate delay      pins 1 & 2 closed

    0 gate delays     pins 2 & 3 closed

         VESA CLOCK CONFIGURATION

     Gate delay              J16

    1 gate delay      pins 1 & 2 closed

    0 gate delays     pins 2 & 3 closed

