
ABIT COMPUTER CORPORATION

PT5 R2 PCI

Processor        CX6X86/AM K5/Pentium
Processor Speed  75/90/100/120/133/150/166/180/200MHz
Chip Set         Intel
Max. Onboard     128MB
DRAM
Cache            256/512KB
BIOS             Award
Dimensions       330mm x 218mm
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), cache slot, IR connector
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Serial port 1              CN1       IDE interface LED          JP21

  Serial port 2              CN2       Speaker                    JW1

  Parallel port              CN3       Reset switch               JW2

  Floppy drive interface     CN4       Turbo switch               JW3

  IDE interface 2            CN5       Power LED & keylock        JW4

  IDE interface 1            CN6       Turbo LED                  JW5

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

  IR connector               JP2       Cache slot                 SL1

  Green PC connector         JP12

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Factory configured - do not              J1              Open
      alter

     On board I/O enabled                    JP4              Open

      On board I/O disabled                   JP4             Closed

     Factory configured - do not             JP5              Open
      alter

     CMOS memory normal operation            JP10             Open

      CMOS memory clear                       JP10            Closed

     Factory configured - do not             JP16             Open
      alter

                DRAM CONFIGURATION

      Size            Bank 0           Bank 1

       8MB         (2) 1M x 32          NONE

       8MB        (2) 512K x 32    (2) 512K x 32

      10MB         (2) 1M x 32     (2) 256K x 32

      10MB        (2) 256K x 32     (2) 1M x 32

      12MB         (2) 1M x 32     (2) 512K x 32

      12MB        (2) 512K x 32     (2) 1M x 32

      16MB         (2) 2M x 32          NONE

      16MB         (2) 1M x 32      (2) 1M x 32

      18MB         (2) 2M x 32     (2) 256K x 32

      18MB        (2) 256K x 32     (2) 2M x 32

      20MB         (2) 2M x 32     (2) 512K x 32

      20MB        (2) 512K x 32     (2) 2M x 32

      24MB         (2) 2M x 32      (2) 1M x 32

      24MB         (2) 1M x 32      (2) 2M x 32

      32MB         (2) 4M x 32          NONE

      32MB         (2) 2M x 32      (2) 2M x 32

      34MB         (2) 4M x 32     (2) 256K x 32

      34MB        (2) 256K x 32     (2) 4M x 32

      36MB         (2) 4M x 32     (2) 512K x 32

      36MB        (2) 512K x 32     (2) 4M x 32

      40MB         (2) 4M x 32      (2) 1M x 32

      40MB         (2) 1M x 32      (2) 4M x 32

      48MB         (2) 4M x 32      (2) 2M x 32

      48MB         (2) 2M x 32      (2) 4M x 32

      64MB         (2) 8M x 32          NONE

      64MB         (2) 4M x 32      (2) 4M x 32

      66MB         (2) 8M x 32     (2) 256K x 32

      66MB        (2) 256K x 32     (2) 8M x 32

      68MB         (2) 8M x 32     (2) 512K x 32

      68MB        (2) 512K x 32     (2) 8M x 32

      72MB         (2) 8M x 32      (2) 1M x 32

      72MB         (2) 1M x 32      (2) 8M x 32

              DRAM CONFIGURATION (CONT)

       Size            Bank 0            Bank 1

       80MB          (2) 8M x 32       (2) 2M x 32

       80MB          (2) 2M x 32       (2) 8M x 32

       96MB          (2) 8M x 32       (2) 4M x 32

       96MB          (2) 4M x 32       (2) 8M x 32

      128MB          (2) 8M x 32       (2) 8M x 32

  Note: This board supports fast page and EDO DRAM.

               CACHE CONFIGURATION

      Size          CA1 & CA2           SL1

      256KB        (2) 32K x 32    Not installed

      512KB        (2) 32K x 32      Installed

  CACHE SWITCH CONFIGURATION

     Size            DS/1

     256KB           Off

     512KB            On

  CPU TYPE CONFIGURATION

    Type           J2

    Cyrix        Closed

    Intel         Open

             CPU SPEED CONFIGURATION (CYRIX)

  Speed     DS/2      DS/3     DS/4      DS/5     DS/6

  120MHz     Off       On       On        Off      Off

  133MHz     On       Off       Off       Off      Off

  150MHz     On        On       Off       Off      Off

  166MHz     On       Off       On        Off      Off

                       CPU SPEED CONFIGURATION (AMD)

   Speed      Ext clock   DS/2      DS/3      DS/4      DS/5       DS/6

   75MHz       50MHz       Off       On        On        Off       Off

   75MHz       66MHz       On        Off       On        On        Off

   90MHz       55MHz       On        Off       Off       Off       Off

   90MHz       60MHz       On        On        Off       Off       Off

   100MHz      66MHz       On        Off       On        Off       Off

   100MHz      55MHz       On        Off       Off       Off       Off

   100MHz      50MHz       Off       On        On        Off       Off

   120MHz      60MHz       On        On        Off       Off       Off

   133MHz      66MHz       On        Off       On        Off       Off

   150MHz      60MHz       On        On        Off       On        Off

   166MHz      66MHz       On        Off       On        On        Off

             CPU SPEED CONFIGURATION (INTEL)

  Speed     DS/2      DS/3     DS/4      DS/5     DS/6

  75MHz      Off       On       On        Off      Off

  90MHz      On        On       Off       Off      Off

  100MHz     On       Off       On        Off      Off

  120MHz     On        On       Off       On       Off

  133MHz     On       Off       On        On       Off

  150MHz     On        On       Off       On       On

  166MHz     On       Off       On        On       On

  180MHz     On        On       Off       Off      On

  200MHz     On       Off       On        Off      On

                         CPU VOLTAGE CONFIGURATION

                Voltage                               JP20

                   3.3v                         pins 3 & 6 closed

                  3.45v                        pins 2 & 5 closed

                   3.6v                         pins 1 & 4 closed

