
TYAN COMPUTER CORPORATION

S1452 REV. 1.0

Processor          Pentium
Processor Speed    90/100MHz
Chip Set           Intel
Max. Onboard DRAM  192MB
Cache              256/512KB
BIOS               Award
Dimensions         330mm x 218mm
I/O Options        32-bit PCI bus slots (4), 32-bit VESA local bus slots
                   (2)
NPU Options        None

[Image]

                                CONNECTIONS

  Purpose                 Location    Purpose                   Location

  Turbo LED                 J10       Reset switch                J19

  Power LED & keylock       J12       IRQ legacy connector        J31

  Turbo switch              J14       32-bit PCI bus slots     PC1 - PC4

  Speaker                   J18       32-bit VESA Local bus    SL1 & SL2
                                      slots

                        USER CONFIGURABLE SETTINGS

               Function                     Jumper           Position

     Flash BIOS voltage select 5            J15            pins 2 & 3
      volt                                                    closed

      Flash BIOS voltage select 12           J15            pins 1 & 2
      volt                                                    closed

                        DRAM CONFIGURATION

      Size            Bank 0           Bank 1          Bank 2

       2MB        (2) 256K x 36         NONE            NONE

       4MB        (2) 256K x 36    (2) 256K x 36        NONE

       4MB        (2) 512K x 36         NONE            NONE

       6MB        (2) 256K x 36    (2) 256K x 36    (2) 256K x 36

       6MB        (2) 512K x 36    (2) 256K x 36        NONE

       6MB        (2) 256K x 36    (2) 512K x 36        NONE

       8MB        (2) 512K x 36    (2) 256K x 36    (2) 256K x 36

       8MB        (2) 512K x 36    (2) 512K x 36        NONE

       8MB         (2) 1M x 36          NONE            NONE

      10MB         (2) 1M x 36     (2) 256K x 36        NONE

      10MB        (2) 256K x 36    (2) 512K x 36    (2) 512K x 36

      10MB        (2) 256K x 36     (2) 1M x 36         NONE

      12MB         (2) 1M x 36     (2) 256K x 36    (2) 256K x 36

      12MB         (2) 1M x 36     (2) 512K x 36        NONE

      12MB        (2) 512K x 36    (2) 512K x 36    (2) 512K x 36

      12MB        (2) 512K x 36     (2) 1M x 36         NONE

      16MB         (2) 1M x 36     (2) 512K x 36    (2) 512K x 36

      16MB         (2) 1M x 36      (2) 1M x 36         NONE

      16MB         (2) 2M x 36          NONE            NONE

      18MB        (2) 256K x 36     (2) 1M x 36      (2) 1M x 36

      18MB         (2) 2M x 36     (2) 256K x 36        NONE

      18MB        (2) 256K x 36     (2) 2M x 36         NONE

      20MB        (2) 512K x 36     (2) 1M x 36      (2) 1M x 36

      20MB        (2) 512K x 36     (2) 2M x 36         NONE

      20MB         (2) 2M x 36     (2) 256K x 36    (2) 256K x 36

      20MB         (2) 2M x 36     (2) 512K x 36        NONE

      24MB         (2) 2M x 36     (2) 512K x 36    (2) 512K x 36

      24MB         (2) 2M x 36      (2) 1M x 36         NONE

      24MB         (2) 1M x 36      (2) 2M x 36         NONE

      32MB         (2) 2M x 36      (2) 1M x 36      (2) 1M x 36

      32MB         (2) 2M x 36      (2) 2M x 36         NONE

      32MB         (2) 4M x 36          NONE            NONE

      34MB         (2) 4M x 36     (2) 256K x 36        NONE

      34MB        (2) 256K x 36     (2) 2M x 36      (2) 2M x 36

      34MB        (2) 256K x 36     (2) 4M x 36         NONE

      36MB         (2) 4M x 36     (2) 256K x 36    (2) 256K x 36

      36MB         (2) 4M x 36     (2) 512K x 36        NONE

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

      36MB        (2) 512K x 36     (2) 4M x 36         NONE

                    DRAM CONFIGURATION (CONT)

      Size            Bank 0           Bank 1          Bank 2

      40MB         (2) 4M x 36     (2) 512K x 36    (2) 512K x 36

      40MB         (2) 4M x 36      (2) 1M x 36         NONE

      40MB         (2) 1M x 36      (2) 2M x 36      (2) 2M x 36

      40MB         (2) 1M x 36      (2) 4M x 36         NONE

      48MB         (2) 4M x 36      (2) 1M x 36      (2) 1M x 36

      48MB         (2) 4M x 36      (2) 2M x 36         NONE

      48MB         (2) 2M x 36      (2) 2M x 36      (2) 2M x 36

      48MB         (2) 2M x 36      (2) 4M x 36         NONE

      64MB         (2) 4M x 36      (2) 2M x 36      (2) 2M x 36

      64MB         (2) 4M x 36      (2) 4M x 36         NONE

      64MB         (2) 8M x 36          NONE            NONE

      66MB         (2) 8M x 36     (2) 256K x 36        NONE

      66MB        (2) 256K x 36     (2) 4M x 36      (2) 4M x 36

      66MB        (2) 256K x 36     (2) 8M x 36         NONE

      68MB        (2) 512K x 36     (2) 4M x 36      (2) 4M x 36

      68MB        (2) 512K x 36     (2) 8M x 36         NONE

      68MB         (2) 8M x 36     (2) 256K x 36    (2) 256K x 36

      68MB         (2) 8M x 36     (2) 512K x 36        NONE

      72MB         (2) 8M x 36     (2) 512K x 36    (2) 512K x 36

      72MB         (2) 8M x 36      (2) 1M x 36         NONE

      72MB         (2) 1M x 36      (2) 4M x 36      (2) 4M x 36

      72MB         (2) 1M x 36      (2) 8M x 36         NONE

      80MB         (2) 8M x 36      (2) 1M x 36      (2) 1M x 36

      80MB         (2) 8M x 36      (2) 2M x 36         NONE

      80MB         (2) 2M x 36      (2) 4M x 36      (2) 4M x 36

      80MB         (2) 2M x 36      (2) 8M x 36         NONE

      96MB         (2) 4M x 36      (2) 4M x 36      (2) 4M x 36

      96MB         (2) 4M x 36      (2) 8M x 36         NONE

      96MB         (2) 8M x 36      (2) 2M x 36      (2) 2M x 36

      96MB         (2) 8M x 36      (2) 4M x 36         NONE

      128MB        (2) 8M x 36      (2) 4M x 36      (2) 4M x 36

      128MB        (2) 8M x 36      (2) 8M x 36         NONE

      130MB       (2) 256K x 36     (2) 8M x 36      (2) 8M x 36

      132MB       (2) 512K x 36     (2) 8M x 36      (2) 8M x 36

      136MB        (2) 1M x 36      (2) 8M x 36      (2) 8M x 36

      144MB        (2) 2M x 36      (2) 8M x 36      (2) 8M x 36

      160MB        (2) 4M x 36      (2) 8M x 36      (2) 8M x 36

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

     CACHE CONFIGURATION

     Size          Bank 0

     256KB      (8) 32K x 8

     512KB      (8) 64K x 8

                  CACHE JUMPER CONFIGURATION

        Size                  J4                   J5

        256KB          pins 1 & 2 closed   pins 1 & 2 closed

        512KB          pins 2 & 3 closed   pins 1 & 2 closed

                          CPU SPEED CONFIGURATION

      Speed                J6                 J7                 J8

      90MHz               Open             pins 1 & 2           Open
                                            closed

      100MHz           pins 1 & 2          pins 1 & 2           Open
                         closed             closed

  IRQ LEGACY CONNECTOR CONFIGURATION

    Description            J31

   No connection          pin 1

   No connection          pin 2

    Interrupt 5           pin 3

   Interrupt 14           pin 4

   Interrupt 15           pin 5

    Interrupt 6           pin 6

    Interrupt 7           pin 7

   No connection          pin 8

    Interrupt 9           pin 9

   Interrupt 10           pin 10

   Interrupt 11           pin 11

   Interrupt 12           pin 12

    Interrupt 3           pin 13

    Interrupt 4           pin 14

