
A-TREND TECHNOLOGY CORPORATION

ATC-1000+

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 (EDO supported)
Memory
Maximum Video       None
Memory
Cache               256/512KB
BIOS                Award
Dimensions          235mm x 220mm
I/O Options         32-bit PCI slots (3), floppy drive interface, green PC
                    connector, IDE interfaces (2), parallel port, PS/2
                    mouse port, serial ports (2), IR connector, USB
                    connector
NPU Options         None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  Serial port 1            CN1         Green PC connector   J1 pins 4 & 5

  Serial port 2            CN2         Turbo LED            J1 pins 7 & 8

  Parallel port            CN3         IDE interface LED     J1 pins 10 &
                                                                 11

  Floppy drive             CN4         Speaker               J1 pins 12 -
  interface                                                      15

  IDE interface 1          CN5         Power LED &           J1 pins 17 -
                                       keylock                   21

  IDE interface 2          CN6         Chassis fan power         J2

  PS/2 mouse port          CN7         32-bit PCI slots       PC1  PC3

  IR connector              IR         USB connector             USB

  Reset switch         J1 pins 1 & 2

                        USER CONFIGURABLE SETTINGS

                Function
                                             Label
                                                             Position

  
      CMOS memory normal operation
                                              JP1
                                                               Open


      CMOS memory clear
                                              JP1
                                                              Closed

  
      Flash BIOS write protect disabled
                                              JP2
                                                            Pins 2 & 3
                                                              closed


      Flash BIOS write protect enabled
                                              JP2
                                                            Pins 1 & 2
                                                              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

  Note: Board accepts EDO memory. Banks are interchangeable.

                  CACHE CONFIGURATION

       Size
                         Bank 0
                                             TAG

       256KB
                      (2) 32K x 32
                                       (1) 16K/32K x 8

       512KB
                      (2) 64K x 32
                                       (1) 16K/32K x 8

                        CPU SPEED SELECTION (CYRIX)

    CPU       Clock     Multiplier      JP3        JP4      JP8     JP9
   speed     speed

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

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

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

  Note: Pins designated should be in the closed position.

                         CPU SPEED SELECTION (AMD)

    CPU
   speed
              Clock
             speed
                        Multiplier
                                        JP3
                                                   JP4
                                                            JP8
                                                                    JP9

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

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

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

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

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

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

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

    CPU       Clock     Multiplier      JP3        JP4      JP8     JP9
   speed     speed

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

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

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

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

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

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

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

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

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

  Note: Pins designated should be in the closed position.

            CPU TYPE SELECTION

        Type
                             JP5

        Cyrix
                      Pins 1 & 2 closed

         AMD
                      Pins 1 & 2 closed

      P54C STD
                      Pins 3 & 4 closed

      P54C VRE
                      Pins 1 & 2 closed

        P55C
                      Pins 7 & 8 closed

          CPU VOLTAGE SELECTION

       Setting               JP6

       Single         Pins 1 & 2 closed

        Dual          Pins 2 & 3 closed

