
QDI COMPUTER, INC.

QDI-437FX-250

Processor           CX M1/Pentium
Processor Speed     75/90/100/120/133/150/166/180/200MHz
Chip Set            Intel
Video Chip Set      None
Maximum Onboard     128MB
Memory
Maximum Video       None
Memory
Cache               256KB
BIOS                Award
Dimensions          250mm x 220mm
I/O Options         32-bit PCI slots (4), floppy drive interface, green PC
                    connector, IDE interfaces (2), parallel port, PS/2
                    mouse interface, serial ports (2), IR connector
NPU Options         None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Serial port 2              CN1       Turbo LED                   J3

  Serial port 1              CN2       Reset switch                J4

  Parallel port              CN3       IDE interface LED           J5

  Floppy drive interface     CN4       IR connector                J6

  IDE interface 2            CN5       PS/2 mouse interface        J7

  IDE interface 1            CN6       Green PC connector          J8

  Power LED & keylock         J1       32-bit PCI slots         PC1 - PC4

  Speaker                     J2

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     CMOS memory normal operation            JP1           Pins 1 & 2
                                                              closed

      CMOS memory clear                       JP1           Pins 2 & 3
                                                              closed

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      8MB         (2) 1M x 36        None

      16MB        (2) 2M x 36        None

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

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

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

      64MB        (2) 8M x 36        None

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

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

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

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

     128MB        (2) 16M x 36       None

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

                            CACHE CONFIGURATION

  Note: 256KB cache is factory installed and is not configurable. The
  location is unidentified.

                        CPU SPEED SELECTION (CYRIX)

    CPU      Clock    Multiplier     JC1       JC2     JC3    JS1    JS2
  speed     speed

  100MHz    50MHz         2x        Closed    Closed    1 &    2 &    1 &
                                                        2      3      2

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

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

    CPU      Clock    Multiplier     JC1       JC2     JC3    JS1    JS2
  speed     speed

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

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

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

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

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

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

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

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

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

            Note: Pins designated should be in the closed position. JC3
            sets AT bus clock. Pins 1 & 2 are for PCICLK/3 & pins 2 & 3
            are for PCICLK/4.

             CPU TYPE SELECTION

     Type           JV1            JV2

  P54C/P54CTB      Closed        Closed

     P55C           Open          Open

                    DMA CHANNEL SELECTION

       Channel               JP7                  JP8

          0            Pins 1 & 2 closed   Pins 1 & 2 closed

          1            Pins 3 & 4 closed   Pins 3 & 4 closed

          3            Pins 5 & 6 closed   Pins 5 & 6 closed

