
M TECHNOLOGY, INC.

R526 PENTIUM PCI/ISA

Processor          Pentium
Processor Speed    75/90/100/120/133/150/166MHz
Chip Set           SIS
Max. Onboard DRAM  512MB
Cache              256/512/1024KB
BIOS               Award
Dimensions         330mm x 220mm
I/O Options        32-bit PCI slots (3), floppy drive interface, green PC
                   connector, IDE interfaces (2), parallel port, PS/2
                   mouse interface, serial ports (2)
NPU Options        None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Serial port 2              CN1       Speaker                     J2

  Serial port 1              CN2       Turbo switch                J3

  PS/2 mouse interface       CN3       Turbo LED                   J4

  Floppy drive interface     CN4       Reset switch                J5

  IDE interface 2            CN5       Green PC connector          J6

  IDE interface 1            CN6       IDE interface LED 1         J7

  Parallel port              CN7       IDE interface LED 2         J8

  Power LED & keylock         J1       32-bit PCI slots         PC1 - PC3

                        USER CONFIGURABLE SETTINGS

                 Function                      Jumper         Position

     Pipeline disabled                         JP32         pins 1 & 2
                                                               closed

      Pipeline enabled (only if burst           JP32         pins 2 & 3
      cache is installed)                                      closed

     Cache type select write back              JP33         pins 1 & 2
                                                               closed

      Cache type select write through           JP33         pins 2 & 3
                                                               closed

     CMOS memory normal operation              JP36         pins 1 & 2
                                                               closed

      CMOS memory clear                         JP36         pins 2 & 3
                                                               closed

      Monitor type select CGA                   JP45           Closed

      Monitor type select                       JP45            Open
      EGA/VGA/monochrome

     Flash BIOS mode select normal             JP55         pins 2 & 3
      operation                                                closed

      Flash BIOS mode select programming        JP55         pins 1 & 2
      mode                                                     closed

                   DRAM CONFIGURATION 1

       Size               Bank 0             Bank 1

        4MB             (4) 1M x 9            NONE

        4MB                NONE            (1) 1M x 36

       16MB             (4) 4M x 9            NONE

       16MB                NONE            (1) 4M x 36

       64MB            (4) 16M x 9            NONE

       64MB                NONE           (1) 16M x 36

  Note: Bank 0 = SIMM 5, 6, 7 & 8. Bank 1 = SIMM 1 or 4.

                       DRAM CONFIGURATION 2

      Size            Bank 0           Bank 1          Bank 2

       2MB        (2) 256K x 36         NONE            NONE

      10MB        (2) 256K x 36     (2) 1M x 36         NONE

      18MB        (2) 256K x 36     (2) 2M x 36         NONE

      24MB         (2) 1M x 36      (2) 1M x 36      (8) 1M x 9

      32MB         (2) 2M x 36      (2) 1M x 36      (8) 1M x 9

      34MB        (2) 256K x 36     (2) 4M x 36         NONE

      48MB         (2) 1M x 36      (2) 1M x 36      (8) 4M x 9

      48MB         (2) 4M x 36      (2) 1M x 36      (8) 1M x 9

      56MB         (2) 2M x 36      (2) 1M x 36      (8) 4M x 9

      66MB        (2) 256K x 36     (2) 8M x 36         NONE

      72MB         (2) 4M x 36      (2) 1M x 36      (8) 4M x 9

      80MB         (2) 8M x 36      (2) 1M x 36      (8) 1M x 9

      80MB         (2) 1M x 36      (2) 8M x 36      (8) 1M x 9

      88MB         (2) 2M x 36      (2) 8M x 36      (8) 1M x 9

      104MB        (2) 8M x 36      (2) 1M x 36      (8) 4M x 9

      104MB        (2) 1M x 36      (2) 8M x 36      (8) 4M x 9

      104MB        (2) 4M x 36      (2) 8M x 36      (8) 1M x 9

      112MB        (2) 2M x 36      (2) 8M x 36      (8) 4M x 9

      128MB        (2) 4M x 36      (2) 8M x 36      (8) 4M x 9

      136MB        (2) 8M x 36      (2) 8M x 36      (8) 1M x 9

      144MB        (2) 1M x 36      (2) 1M x 36      (8) 16M x 9

                 DRAM CONFIGURATION 2 (CONT)

      Size          Bank 0          Bank 1          Bank 2

     144MB       (2) 16M x 36     (2) 1M x 36     (8) 1M x 9

     144MB        (2) 1M x 36    (2) 16M x 36     (8) 1M x 9

     152MB        (2) 2M x 36     (2) 1M x 36    (8) 16M x 9

     152MB        (2) 2M x 36    (2) 16M x 36     (8) 1M x 9

     160MB        (2) 8M x 36     (2) 8M x 36     (8) 4M x 9

     168MB        (2) 4M x 36     (2) 1M x 36    (8) 16M x 9

     168MB       (2) 16M x 36     (2) 1M x 36     (8) 4M x 9

     168MB        (2) 1M x 36    (2) 16M x 36     (8) 4M x 9

     168MB        (2) 4M x 36    (2) 16M x 36     (8) 1M x 9

     176MB        (2) 2M x 36    (2) 16M x 36     (8) 4M x 9

     192MB        (2) 4M x 36    (2) 16M x 36     (8) 4M x 9

     200MB        (2) 8M x 36     (2) 1M x 36    (8) 16M x 9

     200MB        (2) 1M x 36     (2) 8M x 36    (8) 16M x 9

     200MB        (2) 8M x 36    (2) 16M x 36     (8) 1M x 9

     200MB       (2) 16M x 36     (2) 8M x 36     (8) 1M x 9

     208MB        (2) 2M x 36     (2) 8M x 36    (8) 16M x 9

     224MB        (2) 4M x 36     (2) 8M x 36    (8) 16M x 9

     224MB        (2) 8M x 36    (2) 16M x 36     (8) 4M x 9

     224MB       (2) 16M x 36     (2) 8M x 36     (8) 4M x 9

     256MB        (2) 8M x 36     (2) 8M x 36    (8) 16M x 9

     264MB       (2) 16M x 36     (2) 1M x 36    (8) 16M x 9

     264MB        (2) 1M x 36    (2) 16M x 36    (8) 16M x 9

     264MB       (2) 16M x 36    (2) 16M x 36     (8) 1M x 9

     272MB        (2) 2M x 36    (2) 16M x 36    (8) 16M x 9

     272MB       (2) 32M x 36     (2) 1M x 36     (8) 1M x 9

     272MB        (2) 1M x 36    (2) 32M x 36     (8) 1M x 9

     280MB        (2) 2M x 36    (2) 32M x 36     (8) 1M x 9

     288MB        (2) 4M x 36    (2) 16M x 36    (8) 16M x 9

     296MB       (2) 32M x 36     (2) 1M x 36     (8) 4M x 9

     296MB        (2) 1M x 36    (2) 32M x 36     (8) 4M x 9

     296MB        (2) 4M x 36    (2) 32M x 36     (8) 1M x 9

     304MB        (2) 2M x 36    (2) 32M x 36     (8) 4M x 9

     320MB        (2) 8M x 36    (2) 16M x 36    (8) 16M x 9

     320MB       (2) 16M x 36     (2) 8M x 36    (8) 16M x 9

     320MB        (2) 4M x 36    (2) 32M x 36     (8) 4M x 9

     328MB        (2) 8M x 36    (2) 32M x 36     (8) 1M x 9

     328MB       (2) 32M x 36     (2) 8M x 36     (8) 1M x 9

     352MB        (2) 8M x 36    (2) 32M x 36     (8) 4M x 9

     384MB       (2) 16M x 36    (2) 16M x 36    (8) 16M x 9

     392MB       (2) 32M x 36     (2) 1M x 36    (8) 16M x 9

     392MB        (2) 1M x 36    (2) 32M x 36    (8) 16M x 9

     392MB       (2) 16M x 36    (2) 32M x 36     (8) 1M x 9

     392MB       (2) 32M x 36    (2) 16M x 36     (8) 1M x 9

     400MB        (2) 2M x 36    (2) 32M x 36    (8) 16M x 9

     416MB        (2) 4M x 36    (2) 32M x 36    (8) 16M x 9

                       DRAM CONFIGURATION 2 (CONT)

       Size              Bank 0            Bank 1             Bank 2

       416MB          (2) 16M x 36      (2) 32M x 36        (8) 4M x 9

       416MB          (2) 32M x 36      (2) 16M x 36        (8) 4M x 9

       448MB          (2) 8M x 36       (2) 32M x 36       (8) 16M x 9

       448MB          (2) 32M x 36       (2) 8M x 36       (8) 16M x 9

       512MB          (2) 16M x 36      (2) 32M x 36       (8) 16M x 9

       512MB          (2) 32M x 36      (2) 16M x 36       (8) 16M x 9

  Note: Bank 0 = SIMM 1 & 2. Bank 1 = SIMM 3 & 4. Bank 2 = SIMM 5 - 12.

              DRAM CONFIGURATION 3

      Size          Bank 0          Bank 1

      8MB         (4) 1M x 9      (1) 1M x 36

      20MB        (4) 4M x 9      (1) 1M x 36

      68MB        (4) 16M x 9     (1) 1M x 36

  Note: Bank 0 = SIMM 5 - 8. Bank 1 = SIMM 2.

              DRAM CONFIGURATION 4

      Size           Bank 0          Bank 1

      8MB          (4) 1M x 9      (1) 1M x 36

      20MB         (4) 4M x 9      (1) 1M x 36

      68MB        (4) 16M x 9      (1) 1M x 36

  Note: Bank 0 = SIMM 9 - 12. Bank 1 = SIMM 1.

        DRAM JUMPER CONFIGURATION

    Configuration            JP4

          1           pins 1 & 2 closed

          2           pins 1 & 2 closed

          3           pins 2 & 3 closed

          4           pins 2 & 3 closed

                            CACHE CONFIGURATION

      Size            Bank 0                TAG               U1 & U2

    256KB (A)       (8) 32K x 8      (1) 8K/16K/32K x 8         NONE

    256KB (B)          NONE          (1) 8K/16K/32K x 8     (2) 32K x 32

      512KB         (8) 64K x 8       (1) 16K/32K x 8           NONE

       1MB         (8) 128K x 8         (1) 32K x 8             NONE

  Note: Board can be installed with either standard or burst cache. Both
  types cannot be present.

                  CACHE JUMPER CONFIGURATION

        Size                 JP5                  JP6

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

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

        512KB          pins 2 & 3 closed   pins 1 & 2 closed

         1MB           pins 2 & 3 closed   pins 2 & 3 closed

                 CACHE VOLTAGE CONFIGURATION

       Voltage               JP2                  JP3

    3.3v/5v mixed      pins 1 & 2 closed   pins 1 & 2 closed

        3.3v           pins 2 & 3 closed   pins 2 & 3 closed

                          CPU SPEED CONFIGURATION

    Speed        Clock        JP26         JP27        JP30        JP31
                 speed

    75MHz        50MHz       Closed       Closed       1 & 2      1 & 2

    90MHz        60MHz       Closed        Open        1 & 2      1 & 2

   100MHz        66MHz        Open        Closed       1 & 2      1 & 2

   120MHz        60MHz       Closed        Open        2 & 3      1 & 2

   133MHz        66MHz        Open        Closed       2 & 3      1 & 2

   150MHz        50MHz       Closed       Closed       1 & 2      2 & 3

   150MHz        60MHz       Closed        Open        2 & 3      2 & 3

   166MHz        66MHz        Open        Closed       2 & 3      2 & 3

  Note: Pins designated should be in the closed position.

                   CPU VOLTAGE CONFIGURATION

    Voltage          JP38            JP39            JP40

      3.3v          Closed           Open            Open

  3.45v - 3.6v       Open           Closed           Open

                             DMA CONFIGURATION

           DMA                    JP13                     JP14

            DMA 1            pins 2 & 3 closed       pins 2 & 3 closed

           DMA 3            pins 1 & 2 closed       pins 1 & 2 closed

                         PS/2 MOUSE CONFIGURATION

      Setting         JP20       JP21       JP22       JP23       JP24

       Enabled       1 & 2      1 & 2      1 & 2      1 & 2      1 & 2

       Disabled      2 & 3      2 & 3      2 & 3      2 & 3      2 & 3

  Note: Pins designated should be in the closed position.

