
A-TREND TECHNOLOGY CORPORATION

ATC-6020

Processor                Pentium Pro
Processor Speed          150/166/180/200MHz
Chip Set                 Intel
Video Chip Set           None
Maximum Onboard Memory   256MB (EDO supported)
Maximum Video Memory     None
Cache                    256/512KB (located on Pentium Pro CPU)
BIOS                     Award
Dimensions               305mm x 244mm
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), IR
                         connector, USB connector, ATX power connector
NPU Options              None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  ATX power                ATX         Green PC connector   J1 pins 4 & 5
  connector

  Serial port 2            CN1         Turbo LED            J1 pins 7 & 8

  Parallel port            CN2         IDE interface LED     J1 pins 10 &
                                                                 11

  PS/2 mouse port          CN3         Speaker               J1 pins 12 -
                                                                 15

  Serial port 1            CN4         Power LED &           J1 pins 17 -
                                       keylock                   21

  Floppy drive             CN5         Soft off power            J2
  interface                            supply

  IDE interface 2          CN6         Chassis fan power        JP11

  IDE interface 1          CN7         32-bit PCI slots       PC1  PC4

  IR connector              IR         USB connector             USB

  Reset switch         J1 pins 1 & 2

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     CMOS memory normal operation            JP10             Open

      CMOS memory clear                       JP10            Closed

                   DIMM CONFIGURATION

            Size                       Bank 2

            8MB                      (1) 1M x 64

            16MB                     (1) 2M x 64

            32MB                     (1) 4M x 64

            64MB                     (1) 8M x 64

  Note: Do not install DIMM and SIMM at the same time.

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

     128MB        (2) 16M x 36       None

                  DRAM CONFIGURATION (CONT)

        Size                Bank 0               Bank 1

        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

  Note: 256KB/512KB cache is located on the Pentium Pro CPU.

                            CPU SPEED SELECTION

    CPU      Clock    Multiplier     JP3       JP4       JP5        JP6
  speed     speed

  150MHz    60MHz        2.5x        Open     Closed    Closed     Open

  166MHz    66MHz        2.5x       Closed     Open      Open     Closed

  180MHz    60MHz         3x         Open     Closed    Closed     Open

  200MHz    66MHz         3x        Closed     Open      Open     Closed

                        CPU SPEED SELECTION (CONT)

  CPU speed     Clock     Multiplier       JP7         JP8         JP9
               speed

   150MHz      60MHz         2.5x        Closed      Closed       Open

   166MHz      66MHz         2.5x        Closed      Closed       Open

   180MHz      60MHz          3x         Closed       Open       Closed

   200MHz      66MHz          3x         Closed       Open       Closed

