
EPOX COMPUTER CO., LTD.

5BTXB-E

Device Type    Mainboard
Processor      CX 6X86L/IBM 6X86L/CX 686MX/IBM 6X86MX/AM K5/

               AM K6/Pentium/Pentium MMX
Processor Speed90/100/120/133/150/166/188/200/225/233/266/300/333MHz
Chip Set       Intel
Video Chip Set None
Maximum Onboard256MB (EDO & SDRAM supported)
Memory
Maximum Video  None
Memory
Cache          512KB
BIOS           Award
Dimensions     220mm x 220mm
I/O Options    32-bit PCI slots (4), floppy drive interface, IDE
(backplane)    interfaces (2), parallel port, PS/2 mouse interface, serial
               ports (2), IR connector, USB connector, ATX power connector
NPU Options    None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  ATX power connector        ATX       IR connector                J2

  USB connector              CN1       CPU fan power               J3

  Serial port 1              CN2       Power LED & keylock        J4A

  Serial port 2              CN3       Speaker                    J4B

  Parallel port              CN4       Reset switch               J4C

  Floppy drive interface     CN5       Turbo LED                  J4D

  IDE interface 2            CN6       IDE interface LED          J4E

  IDE interface 1            CN7       Soft off power supply       J5

  PS/2 mouse interface        J1       32-bit PCI slots         PC1  PC4

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     CMOS memory normal operation            JP1           Pins 1 & 2
                                                              closed

      CMOS memory clear                       JP1           Pins 2 & 3
                                                              closed

              SIMM CONFIGURATION

         Size                  Bank 2

          8MB                (2) 1M x 36

         16MB                (2) 2M x 36

         32MB                (2) 4M x 36

         64MB                (2) 8M x 36

         128MB              (2) 16M x 36

            Note: Board accepts EDO memory.

             DIMM CONFIGURATION

     Size          Bank 0        Bank 1

      8MB        (1) 1M x 64      None

     16MB        (1) 2M x 64      None

     16MB        (1) 1M x 64   (1) 1M x 64

     24MB        (1) 2M x 64   (1) 1M x 64

     32MB        (1) 4M x 64      None

     32MB        (1) 2M x 64   (1) 2M x 64

     40MB        (1) 4M x 64   (1) 1M x 64

     48MB        (1) 4M x 64   (1) 2M x 64

     64MB        (1) 8M x 64      None

     64MB        (1) 4M x 64   (1) 4M x 64

     72MB        (1) 8M x 64   (1) 1M x 64

           DIMM CONFIGURATION (CONT)

      Size          Bank 0          Bank 1

      80MB        (1) 8M x 64     (1) 2M x 64

      96MB        (1) 8M x 64     (1) 4M x 64

     128MB       (1) 16M x 64        None

     128MB        (1) 8M x 64     (1) 8M x 64

     136MB       (1) 16M x 64     (1) 1M x 64

     144MB       (1) 16M x 64     (1) 2M x 64

     160MB       (1) 16M x 64     (1) 4M x 64

     192MB       (1) 16M x 64     (1) 8M x 64

     256MB       (1) 16M x 64    (1) 16M x 64

            Note: Board accepts SDRAM memory.

      CACHE CONFIGURATION

      Size          Bank 0

     512KB       (1) 64K x 64

                      CPU SPEED SELECTION (CX 6X86L)

    CPU speed       Clock speed         Multiplier             JP3

     150MHz            60MHz               2.5x             Pins 5 & 6
                                                              closed

     166MHz            66MHz               2.5x             Pins 7 & 8
                                                              closed

     200MHz            75MHz                3x              Pins 9 & 10
                                                              closed

                      CPU SPEED SELECTION (IBM 6X86L)

    CPU speed       Clock speed         Multiplier             JP3

     150MHz            60MHz               2.5x             Pins 5 & 6
                                                              closed

     166MHz            66MHz               2.5x             Pins 7 & 8
                                                              closed

     200MHz            75MHz                3x              Pins 9 & 10
                                                              closed

                      CPU SPEED SELECTION (CX 6X86MX)

    CPU speed       Clock speed         Multiplier             JP3

     166MHz            66MHz                2x              Pins 7 & 8
                                                              closed

     166MHz            60MHz               2.5x            Pins 11 & 12
                                                              closed

     200MHz            75MHz                2x              Pins 9 & 10
                                                              closed

     200MHz            66MHz               2.5x            Pins 13 & 14
                                                              closed

     233MHz            75MHz               2.5x            Pins 15 & 16
                                                              closed

     233MHz            66MHz                3x             Pins 17 & 18
                                                              closed

     266MHz            75MHz                3x             Pins 19 & 20
                                                              closed

     266MHz            66MHz               3.5x            Pins 21 & 22
                                                              closed

                     CPU SPEED SELECTION (IBM 6X86MX)

    CPU speed       Clock speed         Multiplier             JP3

     166MHz            66MHz                2x              Pins 7 & 8
                                                              closed

     166MHz            60MHz               2.5x            Pins 11 & 12
                                                              closed

     200MHz            75MHz                2x              Pins 9 & 10
                                                              closed

     200MHz            66MHz               2.5x            Pins 13 & 14
                                                              closed

     233MHz            75MHz               2.5x            Pins 15 & 16
                                                              closed

     233MHz            66MHz                3x             Pins 17 & 18
                                                              closed

     266MHz            75MHz                3x             Pins 19 & 20
                                                              closed

     266MHz            66MHz               3.5x            Pins 21 & 22
                                                              closed

                        CPU SPEED SELECTION (AM K5)

    CPU speed       Clock speed         Multiplier             JP3

      90MHz            60MHz               1.5x             Pins 1 & 2
                                                              closed

     100MHz            66MHz               1.5x             Pins 3 & 4
                                                              closed

     120MHz            60MHz                2x              Pins 5 & 6
                                                              closed

     133MHz            66MHz                2x              Pins 7 & 8
                                                              closed

     150MHz            60MHz               2.5x            Pins 11 & 12
                                                              closed

     166MHz            66MHz               2.5x            Pins 13 & 14
                                                              closed

     188MHz            75MHz               2.5x            Pins 15 & 16
                                                              closed

     200MHz            66MHz                3x             Pins 17 & 18
                                                              closed

                        CPU SPEED SELECTION (AM K6)

    CPU speed       Clock speed         Multiplier             JP3

     166MHz            66MHz               2.5x            Pins 13 & 14
                                                              closed

     200MHz            66MHz                3x             Pins 17 & 18
                                                              closed

     233MHz            66MHz               3.5x            Pins 21 & 22
                                                              closed

     266MHz            66MHz                4x             Pins 23 & 24
                                                              closed

     300MHz            66MHz               4.5x            Pins 25 & 26
                                                              closed

     333MHz            66MHz                5x             Pins 27 & 28
                                                              closed

                        CPU SPEED SELECTION (INTEL)

    CPU speed       Clock speed         Multiplier             JP3

      90MHz            60MHz               1.5x             Pins 1 & 2
                                                              closed

     100MHz            66MHz               1.5x             Pins 3 & 4
                                                              closed

     120MHz            60MHz                2x              Pins 5 & 6
                                                              closed

     133MHz            66MHz                2x              Pins 7 & 8
                                                              closed

     150MHz            60MHz               2.5x            Pins 11 & 12
                                                              closed

     166MHz            66MHz               2.5x            Pins 13 & 14
                                                              closed

     188MHz            75MHz               2.5x            Pins 15 & 16
                                                              closed

     200MHz            66MHz                3x             Pins 17 & 18
                                                              closed

                      CPU SPEED SELECTION (INTEL MMX)

    CPU speed       Clock speed         Multiplier             JP3

     166MHz            66MHz               2.5x            Pins 13 & 14
                                                              closed

     200MHz            66MHz                3x             Pins 17 & 18
                                                              closed

     233MHz            66MHz               3.5x            Pins 21 & 22
                                                              closed

     266MHz            66MHz                4x             Pins 23 & 24
                                                              closed

     300MHz            66MHz               4.5x            Pins 25 & 26
                                                              closed

     333MHz            66MHz                5x             Pins 27 & 28
                                                              closed

                           CPU VOLTAGE SELECTION

               Voltage                                 JP2

                   2.1v                         Pins 1 & 6 closed

                   2.2v                         Pins 2 & 7 closed

                  2.8v                         Pins 3 & 8 closed

                   2.9v                         Pins 4 & 9 closed

                   3.2v                        Pins 5 & 10 closed

