
EPOX COMPUTER CO., LTD.

EP-5BTXA-E

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

              AM K6/Pentium/Pentium MMX
Processor     90/100/120/133/150/166/188/200/225/233/266/300/333MHz
Speed
Chip Set      Intel
Video Chip    None
Set
Maximum       256MB (SDRAM supported)
Onboard
Memory
Maximum Video None
Memory
Cache         512KB
BIOS          Award
Dimensions    254mm x 218mm
I/O Options   32-bit PCI slots (3), floppy drive interface, green PC
              connector, IDE interfaces (2), parallel port, PS/2 mouse
              interface, serial ports (2), IR connector, USB connector
NPU Options   None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  USB connector              CN1       Chassis fan power           J3

  Parallel port              CN2       Power LED & keylock        J4A

  Serial port 2              CN3       Speaker                    J4B

  Floppy drive interface     CN4       Reset switch               J4C

  Serial port 1              CN5       Green PC connector         J4D

  IDE interface 2            CN6       Green PC LED               J4E

  IDE interface 1            CN7       Turbo LED                  J4F

  PS/2 mouse interface        J1       IDE interface LED          J4G

  IR connector                J2       32-bit PCI slots         PC1  PC3

  Note: The location of J3 is unidentified.

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     CMOS memory normal operation            JP1           Pins 1 & 2
                                                              closed

      CMOS memory clear                       JP1           Pins 2 & 3
                                                              closed

               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

      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             JP6

     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             JP6

     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             JP6

     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             JP6

     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             JP6

      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             JP6

     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             JP6

      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             JP6

     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                                 JP6

                   2.0v                         Pins 1 & 6 closed

                   2.1v                        Pins 5 & 10 closed

                  2.8v                         Pins 2 & 7 closed

                   2.9v                         Pins 3 & 8 closed

                   3.2v                         Pins 4 & 9 closed

