
M TECHNOLOGY, INC.

R527 PENTIUM PCI/ISA

Processor          CX 6X86/Pentium
Processor Speed    75/90/100/120/133/150/166MHz
Chip Set           SIS
Max. Onboard DRAM  512MB
Cache              256/512/1024KB
BIOS               Award
Dimensions         280mm 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), VGA feature
                   connector, VGA interface
NPU Options        None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Serial port 2              CN1       Power LED & keylock         J2

  Serial port 1              CN2       Speaker                     J3

  Floppy drive interface     CN3       Turbo switch                J4

  Parallel port              CN4       Turbo LED                   J5

  IDE interface 2            CN5       Reset switch                J6

  IDE interface 1            CN6       IDE interface LED 2         J7

  VGA interface              CN8       IDE interface LED 1         J9

  VGA feature connector      CN9       Green PC connector          J8

  PS/2 mouse interface        J1       32-bit PCI slots         PC1 - PC3

                        USER CONFIGURABLE SETTINGS

                 Function                      Jumper         Position

     Pipeline enabled (only if burst           JP32         pins 1 & 2
      cache is installed)                                      closed

      Pipeline disabled                         JP32         pins 2 & 3
                                                               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

       1MB             NONE        (1) 256K x 36

       1MB        (1) 256K x 36         NONE

       2MB             NONE        (1) 512K x 36

       2MB        (1) 512K x 36         NONE

       4MB             NONE         (1) 1M x 36

       4MB         (1) 1M x 36          NONE

       8MB             NONE         (1) 2M x 36

       8MB         (1) 2M x 36          NONE

      16MB             NONE         (1) 4M x 36

      16MB         (1) 4M x 36          NONE

      32MB             NONE         (1) 8M x 36

      32MB         (1) 8M x 36          NONE

      64MB             NONE         (1) 16M x 36

      64MB         (1) 16M x 36         NONE

      128MB            NONE         (1) 32M x 36

      128MB        (1) 32M x 36         NONE

               DRAM CONFIGURATION 2

      Size         Banks 0 & 1      Banks 2 & 3

       8MB         (2) 1M x 36          NONE

      10MB         (2) 1M x 36     (2) 256K x 36

      12MB         (2) 1M x 36     (2) 512K x 36

      16MB         (2) 2M x 36          NONE

      16MB         (2) 1M x 36      (2) 1M x 36

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

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

      32MB         (2) 4M x 36          NONE

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

      40MB         (2) 4M x 36      (2) 1M x 36

      40MB         (2) 1M x 36      (2) 4M x 36

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

           DRAM CONFIGURATION 2 (CONT)

      Size         Banks 0 & 1      Banks 2 & 3

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

      64MB         (2) 8M x 36          NONE

      64MB         (2) 4M x 36      (2) 4M x 36

      68MB         (2) 8M x 36     (2) 512K x 36

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

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

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

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

      96MB         (2) 8M x 36      (2) 4M x 36

      96MB         (2) 4M x 36      (2) 8M x 36

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

      136MB        (2) 16M x 36     (2) 1M x 36

      144MB        (2) 16M x 36     (2) 2M x 36

      160MB        (2) 16M x 36     (2) 4M x 36

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

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

      264MB        (2) 32M x 36     (2) 1M x 36

      272MB        (2) 32M x 36     (2) 2M x 36

      288MB        (2) 32M x 36     (2) 4M x 36

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

      384MB        (2) 16M x 36     (2) 32M x 36

      384MB        (2) 32M x 36     (2) 16M x 36

      512MB        (2) 32M x 36     (2) 32M x 36

                            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 TYPE CONFIGURATION

             Type                            JP8

             Cyrix                    pins 1 & 2 closed

             Intel                    pins 2 & 3 closed

  Note: This setting only valid if burst cache is installed.

                          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

                         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.

