
SKYWELL TECHNOLOGY CORPORATION, LTD.

VT586TX

Device Type         Mainboard
Processor           CX 6X86/CX 6X86L/AM K5/AM K6/Pentium
Processor Speed     75/90/100/120/133/150/166/200/233MHz
Chip Set            Intel
Video Chip Set      None
Maximum Onboard     256MB (EDO supported)
Memory
Maximum Video       None
Memory
Cache               256/512KB (located on Pentium II CPU)
BIOS                Award
Dimensions          241mm x 221mm
I/O Options         32-bit PCI slots (4), floppy drive interface, green PC
                    connector, IDE interfaces (2), parallel port, PS/2
                    mouse interface, serial ports (2), IR connector, USB
                    connectors (2), ATX power connector
NPU Options         None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  ATX power connector        ATX       Reset switch               J17

  Floppy drive interface      J3       IDE interface LED          J18

  IDE interface 2             J4       IR connector               J19

  PS/2 mouse interface        J5       Chassis fan power          J20

  Serial port 2               J6       Turbo LED                  JP11

  IDE interface 1             J7       Power LED & keylock        JP12

  Serial port 1               J8       Green PC connector         JP13

  Parallel port               J9       Turbo switch               JP14

  USB connector              J14       Soft off power supply      JP15

  USB connector              J15       32-bit PCI slots         PC1 - PC4

  Speaker                    J16

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     CMOS memory normal operation            JP1           Pins 1 & 2
                                                              closed

      CMOS memory clear                       JP1           Pins 2 & 3
                                                              closed

      Flash BIOS voltage select 12v           JP2           Pins 2 & 3
                                                              closed

      Flash BIOS voltage select 5v            JP2           Pins 1 & 2
                                                              closed

              SIMM CONFIGURATION

      Size          Bank 0          Bank 1

      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

     128MB        (2) 16M x 36       None

     136MB        (2) 16M x 36   (2) 1M x 36

     144MB        (2) 16M x 36   (2) 2M x 36

     160MB        (2) 16M x 36   (2) 4M x 36

     192MB        (2) 16M x 36   (2) 8M x 36

     256MB        (2) 16M x 36   (2) 16M x 36

  Note: Board accepts EDO memory.

              DIMM CONFIGURATION

      Size          Bank 2          Bank 3

      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

      CACHE CONFIGURATION

      Size          Bank 0

     256KB       (2) 32K x 32

     512KB       (2) 64K x 32

                       CPU SPEED SELECTION (CX 6X86)

    CPU      Clock     Multiplier   FS0    FS1    FS2     JP3      JP4
  speed      speed

  120MHz     50MHz        2x         1 &    1 &    1 &   Open     Closed
                                     2      2      2

  133MHz     55MHz        2x         2 &    1 &    1 &   Open     Closed
                                     3      2      2

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (CX 6X86L)

    CPU      Clock     Multiplier   FS0    FS1    FS2     JP3      JP4
  speed      speed

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

  200MHz     75MHz        2x         2 &    1 &    2 &   Open     Closed
                                     3      2      3

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K5)

    CPU      Clock    Multiplier   FS0    FS1    FS2      JP3       JP4
  speed     speed

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

  90MHz     60MHz        1.5x       1 &    1 &    2 &    Open      Open
                                    2      2      3

  100MHz    66MHz        1.5x       1 &    2 &    1 &    Open      Open
                                    2      3      2

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

  166MHz    66MHz        2.5x       1 &    2 &    1 &   Closed    Closed
                                    2      3      2

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (AM K6)

    CPU      Clock    Multiplier   FS0    FS1    FS2      JP3       JP4
  speed     speed

  166MHz    66MHz        2.5x       1 &    2 &    1 &   Closed    Closed
                                    2      3      2

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

  Note: Pins designated should be in the closed position.

                        CPU SPEED SELECTION (INTEL)

    CPU      Clock    Multiplier   FS0    FS1    FS2      JP3       JP4
  speed     speed

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

  90MHz     60MHz        1.5x       1 &    1 &    2 &    Open      Open
                                    2      2      3

  100MHz    66MHz        1.5x       1 &    2 &    1 &    Open      Open
                                    2      3      2

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

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

  150MHz    60MHz        2.5x       1 &    1 &    2 &   Closed    Closed
                                    2      2      3

  166MHz    66MHz        2.5x       1 &    2 &    1 &   Closed    Closed
                                    2      3      2

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

  Note: Pins designated should be in the closed position.

                      CPU SPEED SELECTION (INTEL MMX)

    CPU      Clock    Multiplier   FS0    FS1    FS2      JP3       JP4
  speed     speed

  166MHz    66MHz        2.5x       1 &    2 &    1 &   Closed    Closed
                                    2      3      2

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

  233MHz    66MHz        3.5x       1 &    2 &    1 &    Open      Open
                                    2      3      2

  Note: Pins designated should be in the closed position.

                           CPU VOLTAGE SELECTION

  Voltage     JP5        JP6        JP7        JP8       JP9       JP10

   2.8v       Open       Open      Open       Open      Closed     3 & 4

   2.9v       Open       Open      Open      Closed      Open      3 & 4

   3.2v       Open       Open     Closed      Open       Open      3 & 4

   3.4v       Open      Closed     Open       Open       Open      1 & 2

   3.5v      Closed      Open      Open       Open       Open      1 & 2

  Note: Pins designated should be in the closed position.

