
A-TREND TECHNOLOGY CORPORATION

ATC-2000

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     256MB (EDO supported)
Memory
Maximum Video       None
Memory
Cache               256/512KB
BIOS                Award
Dimensions          280mm x 220mm
I/O Options         32-bit PCI slots (4), floppy drive interface, green PC
                    connector, IDE interfaces (2), parallel port, PS/2
                    mouse port, serial ports (2), cache slot, IR connector,
                    USB connector
NPU Options         None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  Serial port 2            CN1         Reset switch         J1 pins 1 & 2

  Serial port 1            CN2         Green PC connector   J1 pins 4 & 5

  Parallel port            CN3         Turbo LED            J1 pins 7 & 8

  Floppy drive             CN4         IDE interface LED     J1 pins 10 &
  interface                                                      11

  IDE interface 1          CN5         Speaker               J1 pins 12 -
                                                                 15

  IDE interface 2          CN6         Power LED &           J1 pins 17 -
                                       keylock                   21

  PS/2 mouse port          CN7         32-bit PCI slots       PC1  PC4

  Chassis fan power        FAN         Cache slot                SL1

  IR connector              IR         USB connector             USB

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     CMOS memory normal operation            JP5              Open

      CMOS memory clear                       JP5             Closed

      Flash BIOS voltage select 12v           JP14          Pins 1 & 2
                                                              closed

      Flash BIOS voltage select 5v            JP14          Pins 2 & 3
                                                              closed

                      DRAM CONFIGURATION

        Size                Bank 0               Bank 1

         4MB            (2) 512K x 36             None

         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) 8M x 36          (2) 8M x 36

        128MB            (2) 16M x 36             None

        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

  Note: Board accepts EDO memory. Banks are interchangeable.

                            CACHE CONFIGURATION

      Size           Bank 0             Bank 1                TAG

      256KB           None           256KB module       (1) 16K/32K x 8
                                      installed

      256KB        (2) 32K x 32     Not installed       (1) 16K/32K x 8

      512KB        (2) 64K x 32     Not installed       (1) 16K/32K x 8

  CACHE TAG CONFIGURATION

   Setting         JP1

   Enabled        Closed

   Disabled        Open

                        CPU SPEED SELECTION (CYRIX)

    CPU     Clock    Multiplier    JP3   JP4     JP6      JP7       JP8
  speed     speed

  120MHz    50MHz        2x        2 &   1 &    Open     Closed   Closed
                                   3      2

  133MHz    55MHz        2x        2 &   1 &     N/A     Open      Open
                                   3      2

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

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

  Note: Pins designated should be in the closed position.

                         CPU SPEED SELECTION (AMD)

    CPU     Clock    Multiplier    JP3   JP4     JP6      JP7       JP8
  speed     speed

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

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

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

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

  133MHz    66MHz       1.5x       1 &   1 &    Closed   Closed    Open
                                   2      2

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

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

    CPU     Clock    Multiplier    JP3   JP4     JP6      JP7       JP8
  speed     speed

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

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

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

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

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                            CPU TYPE SELECTION

       Type              JP9               JP10               JP11

      CX6X86          Pins 1 & 2         Pins 1 & 2         Pins 1 & 2
                        closed            closed             closed

      AM K5           Pins 1 & 2         Pins 1 & 2         Pins 1 & 2
                        closed            closed             closed

     P54C STD         Pins 3 & 4         Pins 1 & 2         Pins 1 & 2
                        closed            closed             closed

     P54C VRE         Pins 1 & 2         Pins 1 & 2         Pins 1 & 2
                        closed            closed             closed

                     CPU VOLTAGE SELECTION (P55C ONLY)

  Voltage    V core      JP9       JP10      JP11       JP12       JP13

   3.3v       2.7v     9 & 10     2 & 3      2 & 3     Closed      Open

   3.3v       2.8v      7 & 8     2 & 3      2 & 3     Closed      Open

   3.3v       2.9v      5 & 6     2 & 3      2 & 3     Closed      Open

   3.3v       3.3v      3 & 4     2 & 3      2 & 3     Closed      Open

   3.3v      3.52v      1 & 2     2 & 3      2 & 3     Closed      Open

  Note: Pins designated should be in the closed position.

