TMC RESEARCH CORPORATION

AI5TH (VER. 1.0E)

Processor            CX M1/AM K5/Pentium
Processor Speed      75/90/100/120/133/150/166/200MHz
Chip Set             Intel
Video Chip Set       None
Maximum Onboard      256MB
Memory
Maximum Video Memory None
Cache                256/512KB
BIOS                 Unidentified
Dimensions           254mm x 218mm
I/O Options          32-bit PCI slots (4), floppy drive interface, green PC
                     connector, IDE interfaces (2), parallel port, serial
                     ports (2), cache slot, IR connector, USB connector
NPU Options          None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  USB connector 1           J6         Speaker             J20/pins 1 & 4

  Serial port 1             J7         Green PC connector   J20/pins 6 &
                                                                 16

  USB connector 2           J8         Turbo LED            J20/pins 8 &
                                                                 18

  Serial port 2             J9         Reset switch         J20/pins 9 &
                                                                 19

  Floppy drive             J12         IDE interface LED    J20/pins 10 &
  interface                                                      20

  Parallel port            J13         Power LED &          J20/pins 11 &
                                       keylock                   15

  IDE interface 1          J15         32-bit PCI slots      PC1 – PC4

  IDE interface 2          J16         Cache slot               SL1

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

  »   Flash BIOS voltage select 5v            JP7           Pins 2 & 3
                                                              closed

      Flash BIOS voltage select 12v           JP7           Pins 1 & 2
                                                              closed

  »   PCI CLK select /4                       JP13            Closed

      PCI CLK select /3                       JP13             Open

  »   CMOS memory normal operation            JP17             Open

      CMOS memory clear                       JP17            Closed

             DRAM CONFIGURATION

     Size          Bank 0        Bank 1

      8MB        (2) 1Mx 32       None

     16MB        (2) 2Mx 32       None

     16MB        (2) 1Mx 32    (2) 1Mx 32

     24MB        (2) 2Mx 32    (2) 1Mx 32

     32MB        (2) 4Mx 32       None

     32MB        (2) 2Mx 32    (2) 2Mx 32

     40MB        (2) 4Mx 32    (2) 1Mx 32

     48MB        (2) 4Mx 32    (2) 2Mx 32

     64MB        (2) 8Mx 32       None

     64MB        (2) 4Mx 32    (2) 4Mx 32

     72MB        (2) 8Mx 32    (2) 1Mx 32

     80MB        (2) 8Mx 32    (2) 2Mx 32

     96MB        (2) 8Mx 32    (2) 4Mx 32

     128MB       (2) 8Mx 32    (2) 8Mx 32

     128MB       (2) 16Mx 32      None

     136MB       (2) 16Mx 32   (2) 1Mx 32

     144MB       (2) 16Mx 32   (2) 2Mx 32

     192MB       (2) 16Mx 32   (2) 8Mx 32

     256MB       (2) 16Mx 32   (2) 16Mx 32

  Note: Board accepts EDO memory.

                CACHE CONFIGURATION

  Note: The cache configuration is unidentified.

                        CPU SPEED SELECTION (CYRIX)

   CPU     Clock    Multiplier    JP8      JP9     JP10     JP11     JP12
  speed    speed

  120MHz   50MHz       2x        Closed   Closed   Closed   Closed   Open

  133MHz   55MHz       2x        Closed   Open     Open     Closed   Open

  150MHz   60MHz       2x        Closed   Open     Closed   Closed   Open

  166MHz   66MHz       2x        Open     Closed   Open     Closed   Open

                         CPU SPEED SELECTION (AMD)

   CPU     Clock   Multiplier    JP8      JP9      JP10    JP11     JP12
  speed    speed

  75MHz    50MHz      1.5x      Closed   Closed   Closed   Open     Open

  90MHz    60MHz      1.5x      Closed    Open    Closed   Open     Open

  100MHz   66MHz      1.5x       Open    Closed    Open    Open     Open

  120MHz   60MHz      1.5x      Closed    Open    Closed   Open     Open

  133MHz   66MHz      1.5x       Open    Closed    Open    Open     Open

  150MHz   60MHz      2.5x      Closed    Open    Closed   Closed   Closed

  166MHz   66MHz      2.5x       Open    Closed    Open    Closed   Closed

                        CPU SPEED SELECTION (INTEL)

   CPU     Clock   Multiplier    JP8      JP9      JP10    JP11     JP12
  speed    speed

  75MHz    50MHz      1.5x      Closed   Closed   Closed   Open     Open

  90MHz    60MHz      1.5x      Closed    Open    Closed   Open     Open

  100MHz   66MHz      1.5x       Open    Closed    Open    Open     Open

  120MHz   60MHz       2x       Closed    Open    Closed   Closed   Open

  133MHz   66MHz       2x        Open    Closed    Open    Closed   Open

  150MHz   60MHz      2.5x      Closed    Open    Closed   Closed   Closed

  166MHz   66MHz      2.5x       Open    Closed    Open    Closed   Closed

  200MHz   66MHz       3x        Open    Closed    Open    Open     Closed

     CPU VOLTAGE SELECTION

  Voltage     JP14      JP19

  Single     Closed     Open

   Dual       Open     Closed

                           DMA CHANNEL SELECTION

         Channel                   JP3                      JP4

              1             Pins 1 & 2 closed        Pins 1 & 2 closed

  »           3             Pins 2 & 3 closed        Pins 2 & 3 closed

                          SERIAL PORT 2 SELECTION

           Setting                     JP1                    JP2

           Used as COM2         Pins 1 & 2 closed      Pins 1 & 2 closed

  »    Used as IR connector     Pins 2 & 3 closed      Pins 2 & 3 closed