
EPOX COMPUTER CO., LTD.

EP-5ATXA-M

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 (EDO & SDRAM supported)
Onboard
Memory
Maximum Video None
Memory
Cache         512KB
BIOS          Award
Dimensions    305mm x 208mm
I/O Options   32-bit PCI slots (4), floppy drive interface, game/MIDI
              port, green PC connector, IDE interfaces (2), parallel port,
              PS/2 mouse port, serial ports (2), IR connector, USB
              connectors (2), ATX power connector, line in, line out,
              microphone in
NPU Options   None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  ATX power connector        ATX       Power LED & keylock        J2A

  Game/MIDI port             CN1       Speaker                    J2B

  Microphone in              CN2       Reset switch               J2C

  Line in                    CN3       Green PC connector         J2D

  Line out                   CN4       Green PC LED               J2E

  Serial port 2              CN5       Turbo LED                  J2F

  Serial port 1              CN6       IDE interface LED          J2G

  Parallel port              CN7       IR connector                J3

  USB connector 1            CN8       CPU fan power               J4

  USB connector 2            CN9       Power fan power             J5

  PS/2 mouse port            CN10      Chassis fan power           J6

  Floppy drive interface     CN11      Soft off power supply       J9

  IDE interface 1            CN12      32-bit PCI slots         PC1  PC4

  IDE interface 2            CN13

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     CMOS memory normal operation            JP1           Pins 1 & 2
                                                              closed

      CMOS memory clear                       JP1           Pins 2 & 3
                                                              closed

     Keyboard power on disabled              JP13          Pins 2 & 3
                                                              closed

      Keyboard power on enabled               JP13          Pins 1 & 2
                                                              closed

              SIMM CONFIGURATION

         Size                  Bank 3

          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

         256MB              (2) 32M x 36

            Note: Board accepts EDO memory.

                    DIMM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2

      8MB       (1) 1M x 64        None          None

     16MB       (1) 2M x 64        None          None

     16MB       (1) 1M x 64    (1) 1M x 64       None

     24MB       (1) 2M x 64    (1) 1M x 64       None

                DIMM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1        Bank 2

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

     32MB       (1) 4M x 64        None          None

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

     32MB       (1) 2M x 64    (1) 2M x 64       None

     40MB       (1) 4M x 64    (1) 1M x 64       None

     40MB       (1) 2M x 64    (1) 2M x 64    (1) 1M x 64

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

     48MB       (1) 4M x 64    (1) 2M x 64       None

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

     56MB       (1) 4M x 64    (1) 2M x 64    (1) 1M x 64

     64MB       (1) 8M x 64        None          None

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

     64MB       (1) 4M x 64    (1) 4M x 64       None

     72MB       (1) 8M x 64    (1) 1M x 64       None

     72MB       (1) 4M x 64    (1) 4M x 64    (1) 1M x 64

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

     80MB       (1) 8M x 64    (1) 2M x 64       None

     80MB       (1) 4M x 64    (1) 4M x 64    (1) 2M x 64

     88MB       (1) 8M x 64    (1) 2M x 64    (1) 1M x 64

     96MB       (1) 8M x 64    (1) 2M x 64    (1) 2M x 64

     96MB       (1) 8M x 64    (1) 4M x 64       None

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

     104MB      (1) 8M x 64    (1) 4M x 64    (1) 1M x 64

     112MB      (1) 8M x 64    (1) 4M x 64    (1) 2M x 64

     128MB      (1) 8M x 64    (1) 4M x 64    (1) 4M x 64

     128MB      (1) 8M x 64    (1) 8M x 64       None

     136MB      (1) 8M x 64    (1) 8M x 64    (1) 1M x 64

     144MB      (1) 8M x 64    (1) 8M x 64    (1) 2M x 64

     160MB      (1) 8M x 64    (1) 8M x 64    (1) 4M x 64

     192MB      (1) 8M x 64    (1) 8M x 64    (1) 8M 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                2x              Pins 5 & 6
                                                              closed

     166MHz            66MHz                2x              Pins 7 & 8
                                                              closed

     200MHz            75MHz                2x              Pins 9 & 10
                                                              closed

                      CPU SPEED SELECTION (IBM 6X86L)

    CPU speed       Clock speed         Multiplier             JP3

     150MHz            60MHz                2x              Pins 5 & 6
                                                              closed

     166MHz            66MHz                2x              Pins 7 & 8
                                                              closed

     200MHz            75MHz                2x              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

                           CPU VOLTAGE SELECTION

               Voltage                                 JP2

                   2.0v                         Pins 1 & 6 closed

                   2.2v                        Pins 5 & 10 closed

                  2.8v                         Pins 2 & 7 closed

                   2.9v                         Pins 3 & 8 closed

                   3.2v                         Pins 4 & 9 closed

