
MICRONICS COMPUTERS, INC.

TWISTER AT

Processor         CX M1/AM K5/AM K6/Pentium
Processor Speed   75/90/100/120/133/150/166/180/200/233MHz
Chip Set          Intel
Video Chip Set    None
Maximum Onboard   256MB (EDO supported)
Memory
Maximum Video     None
Memory
Cache             256/512KB
BIOS              Award
Dimensions        330mm x 218mm
I/O Options       32-bit PCI slots (5), floppy drive interface, green PC
                  connector, IDE interfaces (2), parallel port, PS/2 mouse
                  interface, serial ports (2), IR connector, USB
                  connectors (2)
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  USB connector 1          J10         Green PC connector  J23/pins 3 & 4

  USB connector 2          J11         IR connector         J23/pins 6 -
                                                                 10

  IDE interface 2          J13         IDE interface LED    J23/pins 13 -
                                                                 16

  Serial port 2            J14         Power LED            J23/pins 18 -
                                                                 20

  IDE interface 1          J15         Reset switch         J23/pins 22 &
                                                                 23

  Floppy drive             J16         Speaker              J23/pins 24 -
  interface                                                      27

  Parallel port            J17         Power LED &              J24
                                       keylock

  Chassis fan power        J18         SCSI interface LED       J101

  PS/2 mouse               J19         32-bit PCI slots      PC1  PC5
  interface

  Serial port 1            J22

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     CMOS memory normal operation            JP1           Pins 1 & 2
                                                              closed

      CMOS memory clear                       JP1           Pins 2 & 3
                                                              closed

      Flash BIOS normal operation             JP2           Pins 2 & 3
                                                              closed

      Flash BIOS reserved                     JP2           Pins 1 & 2
                                                              closed

                         DIMM/DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

     8MB        (2) 1M x 36       None           None          None

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

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

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

     16MB       (2) 1M x 36       None           None       (1) 1M x 64

     16MB          None           None       (1) 2M x 64       None

     16MB          None           None       (1) 1M x 64    (1) 1M x 64

     24MB       (2) 2M x 36   (2) 1M x 36        None          None

     24MB       (2) 2M x 36       None           None       (1) 1M x 64

     24MB          None           None       (1) 2M x 64    (1) 1M x 64

     32MB       (2) 4M x 36       None           None          None

     32MB       (2) 2M x 36   (2) 2M x 36        None          None

     32MB       (2) 2M x 36       None           None       (1) 2M x 64

     32MB          None           None       (1) 4M x 64       None

     32MB          None           None       (1) 2M x 64    (1) 2M x 64

     40MB       (2) 4M x 36   (2) 1M x 36        None          None

     40MB       (2) 4M x 36       None           None       (1) 1M x 64

     40MB          None           None       (1) 1M x 64    (1) 4M x 64

     48MB       (2) 4M x 36   (2) 2M x 36        None          None

     48MB       (2) 2M x 36       None           None       (1) 4M x 64

     48MB          None           None       (1) 2M x 64    (1) 4M x 64

     64MB       (2) 8M x 36       None           None          None

                      DIMM/DRAM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     64MB        (2) 4M x 36   (2) 4M x 36        None           None

     64MB        (2) 4M x 36       None           None       (1) 4M x 64

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

     64MB           None           None       (1) 4M x 64    (1) 4M x 64

     72MB        (2) 8M x 36       None           None       (1) 1M x 64

     72MB        (2) 8M x 36   (2) 1M x 36        None           None

     72MB           None           None       (1) 1M x 64    (1) 8M x 64

     80MB        (2) 2M x 36       None           None       (1) 8M x 64

     80MB        (2) 2M x 36       None           None       (1) 8M x 64

     80MB        (2) 8M x 36   (2) 2M x 36        None           None

     80MB           None           None       (1) 2M x 64    (1) 8M x 64

     96MB        (2) 4M x 36       None           None       (1) 8M x 64

     96MB        (2) 8M x 36       None           None       (1) 4M x 64

     96MB        (2) 8M x 36   (2) 4M x 36        None           None

     96MB           None           None       (1) 4M x 64    (1) 8M x 64

     128MB       (2) 8M x 36       None           None       (1) 8M x 64

     128MB       (2) 8M x 36       None           None       (1) 8M x 64

     128MB       (2) 8M x 36   (2) 8M x 36        None           None

     128MB       (2) 16M x 36      None           None           None

     128MB          None           None       (1) 8M x 64    (1) 8M x 64

     136MB       (2) 16M x 36  (2) 1M x 36        None           None

     144MB       (2) 16M x 36  (2) 2M x 36        None           None

     160MB       (2) 16M x 36  (2) 4M x 36        None           None

     192MB       (2) 16M x 36  (2) 8M x 36        None           None

     256MB       (2) 16M x 36  (2) 16M x 36       None           None

     256MB          None           None       (1) 16M x 64   (1) 16M x 64

  Note: Board accepts EDO memory. Banks 2 & 3 are interchangeable.

                 CACHE CONFIGURATION

           Size                     Bank 0

          256KB                  (2) 32K x 32

          512KB                  (2) 64K x 32

  Note: The location of the cache is unidentified.

                        CPU SPEED SELECTION (CYRIX)

    CPU      Clock   Multiplier     JP4   JP5    JP6   JP7    JP8   JP60
  speed     speed

  150MHz    50MHz        2x         1 &   1 &    2 &   2 &    1 &   Open
                                    2      2     3      3     2

  166MHz    60MHz        2x         1 &   1 &    2 &   1 &    2 &   Open
                                    2      2     3      2     3

  Note: Pins designated should be in the closed position.

                         CPU SPEED SELECTION (AMD)

    CPU      Clock   Multiplier     JP4   JP5    JP6   JP7    JP8   JP60
  speed     speed

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

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

  100MHz    66MHz       1.5x        1 &   1 &    2 &   1 &    2 &   Open
                                    2      2     3      2     3

  120MHz    60MHz       1.5x        1 &   1 &    2 &   2 &    1 &   Open
                                    2      2     3      3     2

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

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

  200MHz    66MHz        3x         2 &   1 &    2 &   1 &    2 &   Open
                                    3      2     3      2     3

  233MHz    66MHz       3.5x        1 &   1 &    2 &   1 &    2 &   1 & 2
                                    2      2     3      2     3

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

    CPU      Clock   Multiplier     JP4   JP5    JP6   JP7    JP8   JP60
  speed     speed

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

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

  100MHz    66MHz       1.5x        1 &   1 &    2 &   1 &    2 &   Open
                                    2      2     3      2     3

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

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

  150MHz    60MHz       2.5x        2 &   2 &    2 &   2 &    1 &   Open
                                    3      3     3      3     2

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

  180MHz    60MHz        3x         2 &   1 &    2 &   2 &    1 &   Open
                                    3      2     3      3     2

  200MHz    66MHz        3x         2 &   1 &    2 &   1 &    2 &   Open
                                    3      2     3      2     3

  233MHz    66MHz       3.5x        1 &   1 &    2 &   1 &    2 &   Open
                                    2      2     3      2     3

  Note: Pins designated should be in the closed position.

                            CPU TYPE SELECTION

   Type     JP11     JP12     JP13     JP14    JP16   JP17     JP18   JP19

  CX6X86    Open    Closed    Open     Open    Open   Closed   Open   Open

  CX6X86L   Open     Open     Open    Closed   Open   Closed   Open   Open

  AM K5     Open     Open    Closed    Open    Open   Closed   Open   Open

  AM K6     Open     Open     Open    Closed   Open   Closed   Open   Open

   AM K6    Closed   Open     Open     Open    Open   Closed   Open   Open
  233MHz

   P54C     Open    Closed    Open     Open    Open   Closed   Open   Open

  P54CS     Open    Closed    Open     Open    Open   Closed   Open   Open

  P54CTB    Open    Closed    Open     Open    Open   Closed   Open   Open

   P55C     Open     Open     Open    Closed   Open   Closed   Open   Open

