
SEANIX TECHNOLOGY, INC.

S895 (VER. 1.0)

Processor  80486SX/80486DX/80486DX2/80486DX4/Pentium Overdrive
Processor  25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   OPTI
Max.       128MB
Onboard
DRAM
Cache      128/256KB
BIOS       Award
Dimensions 330mm x 218mm
I/O        32-bit VESA local bus slots (3)
Options
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                 Location      Purpose                Location

  Power LED & keylock        J15        Chassis fan power       JP118

  Speaker                   JP27        PAL socket for VL       JP140
                                        master option

  Turbo switch              JP114       Reset switch              S1

  Turbo LED                 JP115       32-bit VESA local     SL1 - SL3
                                        bus slots

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Flash BIOS write protect enabled        JP3           pins 1 & 2
                                                              closed

      Flash BIOS write protect                JP3           pins 2 & 3
      disabled                                                closed

     Factory configured - do not             JP5           pins 1 & 2
      alter                                                   closed

     Cache type select write through         JP14             Open

      Cache type select write back            JP14            Closed

     Pentium Overdrive level 1 cache         JP16            Closed
      select burst write

      Pentium Overdrive level 1 cache         JP16             Open
      select disable blen#

     Factory configured - do not             JP21          pins 2 & 3
      alter                                                   closed

     Programming voltage select +12v        JP107          pins 1 & 2
                                                              closed

      Programming voltage select +5v         JP107          pins 2 & 3
                                                              closed

     1Mbit flash select 512KB bit           JP108            Closed
      file at 00000

      1Mbit flash select 512KB bit           JP108             Open
      file at 10000

     Factory configured - do not            JP112             Open
      alter

     Factory configured - do not            JP113             Open
      alter

     CPU type select Intel/AMD              JP119          pins 1 & 2
                                                              closed

      CPU type select Cyrix M7               JP119          pins 2 & 3
                                                              closed

     CPU type select Intel/AMD              JP120             Open

      CPU type select Cyrix 2X               JP120            Closed

     Factory configured - do not            JP121             Open
      alter

     Factory configured - do not            JP122             Open
      alter

     Factory configured - do not            JP123             Open
      alter

     Factory configured - do not            JP127          pins 2 & 3
      alter                                                   closed

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

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

     4MB        (1) 512K x     (1) 512K x        NONE           NONE
                    36             36

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

     6MB        (1) 512K x     (1) 512K x     (1) 256K x    (1) 256K x 36
                    36             36             36

     6MB        (1) 512K x    (1) 1M x 36        NONE           NONE
                    36

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

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

     10MB       (1) 512K x    (1) 2M x 36        NONE           NONE
                    36

     12MB       (1) 512K x     (1) 512K x    (1) 1M x 36     (1) 1M x 36
                    36             36

     14MB       (1) 512K x    (1) 1M x 36    (1) 1M x 36     (1) 1M x 36
                    36

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

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

     16MB      (1) 4M x 36        NONE           NONE           NONE

     18MB       (1) 512K x    (1) 2M x 36    (1) 1M x 36     (1) 1M x 36
                    36

     20MB      (1) 1M x 36    (1) 4M x 36        NONE           NONE

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

     24MB      (1) 2M x 36    (1) 2M x 36    (1) 1M x 36     (1) 1M x 36

     24MB      (1) 1M x 36    (1) 1M x 36    (1) 4M x 36        NONE

     32MB      (1) 2M x 36    (1) 2M x 36    (1) 4M x 36        NONE

                        DRAM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     32MB        (1) 8M x 36       NONE           NONE           NONE

     32MB        (1) 4M x 36   (1) 4M x 36        NONE           NONE

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

     40MB        (1) 1M x 36   (1) 1M x 36    (1) 4M x 36    (1) 4M x 36

     48MB        (1) 4M x 36   (1) 4M x 36    (1) 4M x 36        NONE

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

     64MB        (1) 8M x 36   (1) 8M x 36        NONE           NONE

     64MB        (1) 4M x 36   (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

     64MB        (1) 16M x 36      NONE           NONE           NONE

     96MB        (1) 8M x 36   (1) 8M x 36    (1) 4M x 36    (1) 4M x 36

     128MB       (1) 16M x 36  (1) 16M x 36       NONE           NONE

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

     128KB      (4) 32K x 8        NONE       (1) 32K x 8

     256KB      (4) 32K x 8    (4) 32K x 8    (1) 32K x 8

                  CACHE JUMPER CONFIGURATION

        Size                JP125                JP126

        128KB          pins 1 & 2 closed   pins 1 & 2 closed

        256KB          pins 2 & 3 closed   pins 2 & 3 closed

                 CPU TYPE CONFIGURATION

            Type                       JP26

          80486SX                pins 2 & 3 closed

          80486DX            pins 1 & 2, 3 & 4 closed

          80486DX2           pins 1 & 2, 3 & 4 closed

          80486DX4           pins 1 & 2, 3 & 4 closed

     Pentium Overdrive       pins 1 & 2, 3 & 4 closed

                          CPU TYPE CONFIGURATION

           Type                    JP25                    JP116

  Non - SL enhanced CPU            Open                     Open

     SL enhanced CPU              Closed              pins 1 & 2, 3 & 4
                                                           closed

                CPU SPEED CONFIGURATION

           Speed                       JP124

           25MHz             pins 1 & 2, 5 & 6 closed

           33MHz             pins 1 & 2, 3 & 4 closed

           40MHz                 pins 5 & 6 closed

           50iMHz            pins 1 & 2, 5 & 6 closed

           50MHz                 pins 3 & 4 closed

           66iMHz            pins 1 & 2, 3 & 4 closed

           75iMHz            pins 1 & 2, 5 & 6 closed

          100iMHz            pins 1 & 2, 3 & 4 closed

              CPU VOLTAGE CONFIGURATION

  Voltage    JP101      JP102      JP103      JP104

   3.45v      Open       Open      Open       Open

    5v       Closed     Closed    Closed     Closed

  Note: The location of JP101 is unidentified.

  VESA WAIT STATE CONFIGURATION

   Wait states         JP31

  0 wait states        Open

  1 wait state        Closed

  BUS SPEED CONFIGURATION

  CPU speed        JP30

   <= 33MHz        Open

   > 33MHz        Closed

