
AXIOM TECHNOLOGY, INC.

AX8158

Processor              Pentium
Processor Speed        75/90/100/120/133/166/MHz
Chip Set               SIS
Video Chip Set         None
Maximum Onboard Memory 128MB (EDO supported)
Maximum Video Memory   None
Cache                  256/512/1024KB
BIOS                   AMI
Dimensions             388mm x 122mm
I/O Options            Floppy drive interface, IDE interfaces (2),
                       parallel port, PS/2 mouse port, PS/2 mouse
                       interface, serial ports (2), cache slot
NPU Options            None

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                 Location

  IDE interface LED          CN1       Serial port 2              CN9

  Reset switch               CN2       Auxiliary keyboard        CN10
                                       connector

  Speaker                    CN3       PS/2 mouse interface      CN11

  IDE interface 1            CN5       Serial port 1             CN12

  IDE interface 2            CN6       PS/2 mouse port           CN14

  Floppy drive               CN7       Cache slot                 SL1
  interface

  Parallel port              CN8

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     PCI bus clock select CPUCLK/2           J7            Pins 1 & 2
                                                              closed

      PCI bus clock select 32MHz              J7            Pins 2 & 3
                                                              closed

     CPU NA# mode disabled                   J8            Pins 1 & 2
                                                              closed

      CPU NA# mode enabled                    J8            Pins 2 & 3
                                                              closed

     CPU cache type select write back        J9            Pins 1 & 2
                                                              closed

      CPU cache type select write             J9            Pins 2 & 3
      through                                                 closed

     Parallel port IRQ select IRQ7           J12           Pins 1 & 2
                                                              closed

      Parallel port IRQ select IRQ5           J12           Pins 2 & 3
                                                              closed

     WDT function select NMI                 J13           Pins 1 & 2
                                                              closed

      WDT function select reset               J13           Pins 2 & 3
                                                              closed

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     1MB        (1) 256K x        None           None           None
                    36

     2MB        (1) 256K x     (1) 256K x        None           None
                    36             36

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

     4MB        (1) 512K x     (1) 512K x        None           None
                    36             36

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

     6MB        (1) 256K x     (1) 256K x     (1) 512K x    (1) 512K x 36
                    36             36             36

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

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

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

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

     16MB      (1) 2M x 36    (1) 2M x 36        None           None

     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

     18MB       (1) 256K x     (1) 256K x    (1) 2M x 36     (1) 2M x 36
                    36             36

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

     24MB      (1) 1M x 36    (1) 1M x 36    (1) 2M x 36     (1) 2M x 36

     32MB      (1) 2M x 36    (1) 2M x 36    (1) 2M x 36     (1) 2M x 36

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

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

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

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

     48MB      (1) 2M x 36    (1) 2M x 36    (1) 4M x 36     (1) 4M x 36

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

     64MB      (1) 8M x 36    (1) 8M x 36        None           None

     66MB       (1) 256K x     (1) 256K x    (1) 8M x 36     (1) 8M x 36
                    36             36

                        DRAM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     68MB         (1) 512K x     (1) 512K x    (1) 8M x 36   (1) 8M x 36
                     36             36

     72MB        (1) 1M x 36    (1) 1M x 36    (1) 8M x 36   (1) 8M x 36

     80MB        (1) 2M x 36    (1) 2M x 36    (1) 8M x 36   (1) 8M x 36

     96MB        (1) 4M x 36    (1) 4M x 36    (1) 8M x 36   (1) 8M x 36

     128MB       (1) 8M x 36    (1) 8M x 36    (1) 8M x 36   (1) 8M x 36

  Note: Board accepts EDO memory. Board also accepts x 32 SIMMs.

                            CACHE CONFIGURATION

      Size             Bank 0               SL1                 TAG

    256KB (A)       (8) 32K x 8        Not installed        (1) 32K x 8

    256KB (B)           None            256KB module            None
                                         installed

    512KB (A)       (8) 64K x 8        Not installed        (1) 32K x 8

    512KB (B)           None            512KB module            None
                                         installed

       1MB          (8) 128K x 8       Not installed        (1) 32K x 8

                  CACHE JUMPER CONFIGURATION

        Size                  J2                   J3

      256KB (A)        Pins 1 & 2 closed   Pins 1 & 2 closed

      256KB (B)        Pins 1 & 2 closed   Pins 1 & 2 closed

      512KB (A)        Pins 1 & 2 closed   Pins 2 & 3 closed

      512KB (B)        Pins 1 & 2 closed   Pins 2 & 3 closed

         1MB           Pins 2 & 3 closed   Pins 2 & 3 closed

                         CACHE TYPE CONFIGURATION

                   Type                                   J1

                 Asynchronous                    Pins 1 & 2 closed

              Burst/pipeline burst                Pins 2 & 3 closed

                            CPU SPEED SELECTION

  CPU speed     Clock      Multiplier     J5      J6       J10      J11
                speed

   75MHz        50MHz         1.5x       1 & 2   2 & 3    1 & 2    1 & 2

   90MHz        60MHz         1.5x       2 & 3   2 & 3    1 & 2    1 & 2

   100MHz       66MHz         1.5x       1 & 2   1 & 2    1 & 2    1 & 2

   120MHz       60MHz          2x        2 & 3   2 & 3    1 & 2    2 & 3

   133MHz       66MHz          2x        1 & 2   1 & 2    1 & 2    2 & 3

   166MHz       66MHz         2.5x       1 & 2   1 & 2    2 & 3    2 & 3

  Note: Pins designated should be in the closed position.

                           CPU VOLTAGE SELECTION

          Voltage                    J4                      J14

            3.36v            Pins 1 & 2 closed       Pins 1 & 2 closed

             3.53v            Pins 2 & 3 closed       Pins 2 & 3 closed

