
TMC RESERCH CORPORATION

AI5TH (VER. 1.0)

Processor           CX M1/AM K5/Pentium
Processor Speed     75/90/100/120/133/150/166/180/200MHz
Chip Set            Intel
Video Chip Set      None
Maximum Onboard     128MB DRAM (EDO supported)
Memory
Maximum Video       None
Memory
Cache               256/512KB
BIOS                Unidentified
Dimensions          330mm x 218mm
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), cache slot, IR
                    connectors (2), VRM connector
NPU Options         None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  PS/2 mouse                J5         Speaker               J20 pins 1 -
  interface                                                       4

  IR connector              J6         Green PC connector    J20 pins 6 &
                                                                 16

  Serial port 1             J7         Turbo LED             J20 pins 8 &
                                                                 18

  IR connector              J8         Reset switch          J20 pins 9 &
                                                                 19

  Serial port 2             J9         IDE interface LED    J20 pins 10 &
                                                                 20

  Floppy drive              J12        Power LED &          J20 pins 11 -
  interface                            keylock                   15

  Parallel port             J13        32-bit PCI slots       PC1 - PC4

  IDE interface 1           J15        Cache slot                SL1

  IDE interface 2           J16        VRM connector             VRM

                        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

     AT bus clock select PCICLK/4            JP13            Closed

      AT bus clock select PCICLK/3            JP13             Open

     CMOS memory normal operation            JP17             Open

      CMOS memory clear                       JP17            Closed

             DRAM CONFIGURATION

     Size          Bank 0        Bank 1

      8MB           None       (2) 1M x 36

      8MB        (2) 1M x 36      None

     16MB           None       (2) 2M 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           None       (2) 4M 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

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

     64MB           None       (2) 8M 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

                    DRAM CONFIGURATION (CONT)

         Size                 Bank 0                Bank 1

         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

  Note: Board accepts EDO memory. Board also accepts x 32 SIMMs.

                            CACHE CONFIGURATION

    Size        Bank 0      Bank 1           TAG                SL1

  256KB (A)    (2) 32K x     None       Unidentified       Not installed
                  32

  256KB (B)      None        None           None             Installed

  512KB (A)    (2) 32K x   (2) 32K x    Unidentified       Not installed
                  32          32

  512KB (B)    (2) 64K x     None       Unidentified       Not installed
                  32

  512KB (C)      None        None           None             Installed

  Note: The location of Banks 0 & 1 are unidentified. The TAG chip sizes
  are unidentified.

               CACHE JUMPER CONFIGURATION

       Size               JP21               JP22

       None               Open               Open

   256KB (A, B)          Closed              Open

  512KB (A, B, C)         Open              Closed

    CACHE BANK CONFIGURATION

  Setting     JP23      JP24

  1 bank      Open      Open

  2 banks    Closed    Closed

               CPU SPEED SELECTION (CYRIX)

  Speed      JP8       JP9      JP10      JP11      JP12

  120MHz    Closed   Closed    Closed    Closed     Open

  150MHz    Closed    Open     Closed    Closed     Open

  166MHz     Open    Closed     Open     Closed     Open

                CPU SPEED SELECTION (AMD)

  Speed      JP8      JP9      JP10      JP11     JP12

  75MHz     Closed   Closed    Closed    Open     Open

  90MHz     Closed    Open     Closed    Open     Open

  100MHz    Open     Closed    Open      Open     Open

                   CPU SPEED SELECTION (INTEL)

   Speed       JP8        JP9       JP10       JP11       JP12

   75MHz     Closed     Closed     Closed      Open       Open

   90MHz     Closed      Open      Closed      Open       Open

  100MHz      Open      Closed      Open       Open       Open

  120MHz     Closed      Open      Closed     Closed      Open

  133MHz      Open      Closed      Open      Closed      Open

  150MHz     Closed      Open      Closed     Closed     Closed

  166MHz      Open      Closed      Open      Closed     Closed

  180MHz     Closed      Open      Closed      Open      Closed

  200MHz      Open      Closed      Open       Open      Closed

       CPU TYPE SELECTION

      Type           JP19

  Standard CPU      Closed

    VRE CPU          Open

                           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 SELECTION

           Setting                     JP1                    JP2

       Serial port 2 set as    Pins 1 & 2 closed      Pins 1 & 2 closed
            serial port

           IR connector         Pins 2 & 3 closed      Pins 2 & 3 closed

