PROMISE TECHNOLOGY, INC.
========================

   DRIVECACHE DC2030

   +------------------------------------------------------------+
   +------------------------------------------------------------+

   Data bus: 16-bit, ISA

   Size: Full-length, full-height card

   Hard drives supported: Two AT Interface (IDE) drives

   Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB

   Maximum heads/cyl.: 16 heads and 2048 cylinders

<gopher://bitreich.org/I/th99/c/P-R/20168-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                    Function                     | Location |
   |-------------------------------------------------+----------|
   | Memory expansion card connector                 | J1 & J2  |
   |-------------------------------------------------+----------|
   | 40-pin AT Interface (IDE) control cable         |    J3    |
   | connector-hard drive                            |          |
   |-------------------------------------------------+----------|
   | 40-pin AT interface (IDE) control cable         |    J4    |
   | connector-from motherboard                      |          |
   |-------------------------------------------------+----------|
   | 34-pin control cable connector-floppy drive     |    J5    |
   |-------------------------------------------------+----------|
   | 4-pin connector-drive active LED                |    W1    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |            Function             |   Location    | Setting  |
   |---------------------------------+---------------+----------|
   |>>  | AT bus interface enabled   |      W2       |  closed  |
   |----+----------------------------+---------------+----------|
   |    | AT bus interface disabled* |      W2       |   open   |
   |----+----------------------------+---------------+----------|
   |>>  | Factory configured - do    |      W3       |   open   |
   |    | not alter                  |               |          |
   |----+----------------------------+---------------+----------|
   |>>  | Factory configured - do    |      W4       |   open   |
   |    | not alter                  |               |          |
   |----+----------------------------+---------------+----------|
   |>>  | Factory configured - do    |      W5       |   open   |
   |    | not alter                  |               |          |
   |----+----------------------------+---------------+----------|
   |>>  | Floppy drive enabled       |      W6       |  closed  |
   |----+----------------------------+---------------+----------|
   |    | Floppy drive disabled      |      W6       |   open   |
   |----+----------------------------+---------------+----------|
   |>>  | Factory configured - do    | SW1/switch 4  |   off    |
   |    | not alter                  |               |          |
   |------------------------------------------------------------|
   | Note:*This option allows for caching of the motherboard's  |
   | imbedded HD controller via CN4.                            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                        BIOS ADDRESS                        |
   |------------------------------------------------------------|
   |  Address  | W7/jumper  | W7/jumper | W7/jumper | W7/jumper |
   |           |     1      |     2     |     3     |     4     |
   |-----------+------------+-----------+-----------+-----------|
   |   | C000h |   closed   |  closed   |  closed   |  closed   |
   |---+-------+------------+-----------+-----------+-----------|
   |   | C200h |   closed   |  closed   |  closed   |   open    |
   |---+-------+------------+-----------+-----------+-----------|
   |   | C400h |   closed   |  closed   |   open    |  closed   |
   |---+-------+------------+-----------+-----------+-----------|
   |   | C600h |   closed   |  closed   |   open    |   open    |
   |---+-------+------------+-----------+-----------+-----------|
   |   | C800h |   closed   |   open    |  closed   |  closed   |
   |---+-------+------------+-----------+-----------+-----------|
   |   | CA00h |   closed   |   open    |  closed   |   open    |
   |---+-------+------------+-----------+-----------+-----------|
   |   | CC00h |   closed   |   open    |   open    |  closed   |
   |---+-------+------------+-----------+-----------+-----------|
   |   | CE00h |   closed   |   open    |   open    |   open    |
   |---+-------+------------+-----------+-----------+-----------|
   |   | D000h |    open    |  closed   |  closed   |  closed   |
   |---+-------+------------+-----------+-----------+-----------|
   |   | D200h |    open    |  closed   |  closed   |   open    |
   |---+-------+------------+-----------+-----------+-----------|
   |   | D400h |    open    |  closed   |   open    |  closed   |
   |---+-------+------------+-----------+-----------+-----------|
   |   | D600h |    open    |  closed   |   open    |   open    |
   |---+-------+------------+-----------+-----------+-----------|
   |>> | D800h |    open    |   open    |  closed   |  closed   |
   |---+-------+------------+-----------+-----------+-----------|
   |   | DA00h |    open    |   open    |  closed   |   open    |
   |---+-------+------------+-----------+-----------+-----------|
   |   | DC00h |    open    |   open    |   open    |  closed   |
   |---+-------+------------+-----------+-----------+-----------|
   |   | DE00h |    open    |   open    |   open    |   open    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                ON-BOARD CACHE CONFIGURATION                |
   |------------------------------------------------------------|
   | Size  |   Bank 0    |   Bank 1   | SW1/switch | SW1/switch |
   |       |             |            |     2      |     3      |
   |-------+-------------+------------+------------+------------|
   | 512KB | (2) 256K x  |    NONE    |     on     |     on     |
   |       |      9      |            |            |            |
   |-------+-------------+------------+------------+------------|
   |  1MB  | (2) 256K x  | (2) 256K x |     on     |     on     |
   |       |      9      |     9      |            |            |
   |-------+-------------+------------+------------+------------|
   |  2MB  | (2) 1M x 9  |    NONE    |     on     |    off     |
   |-------+-------------+------------+------------+------------|
   | 2.5MB | (2) 1M x 9  | (2) 256K x |     on     |    off     |
   |       |             |     9      |            |            |
   |-------+-------------+------------+------------+------------|
   | 2.5MB | (2) 256K x  | (2) 1M x 9 |    off     |    off     |
   |       |      9      |            |            |            |
   |-------+-------------+------------+------------+------------|
   |  4MB  | (2) 1M x 9  | (2) 1M x 9 |    off     |     on     |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/c/P-R/20168-2.png>
   

   +------------------------------------------------------------+
   |           MEMORY BOARD CACHE CONFIGURATION - SW1           |
   |------------------------------------------------------------|
   | Size  | Bank  | Bank  | Bank  | Bank | Bank | Bank | SW1/1 |
   |       |   2   |   3   |   4   |  5   |  6   |  7   |       |
   |-------+-------+-------+-------+------+------+------+-------|
   | 512KB |  (2)  | NONE  | NONE  | NONE | NONE | NONE |  on   |
   |       | 256K  |       |       |      |      |      |       |
   |-------+-------+-------+-------+------+------+------+-------|
   |  1MB  |  (2)  |  (2)  | NONE  | NONE | NONE | NONE |  on   |
   |       | 256K  | 256K  |       |      |      |      |       |
   |-------+-------+-------+-------+------+------+------+-------|
   | 1.5MB |  (2)  |  (2)  |  (2)  | NONE | NONE | NONE |  on   |
   |       | 256K  | 256K  | 256K  |      |      |      |       |
   |-------+-------+-------+-------+------+------+------+-------|
   |  2MB  |  (2)  |  (2)  |  (2)  | (2)  | NONE | NONE |  on   |
   |       | 256K  | 256K  | 256K  | 256K |      |      |       |
   |-------+-------+-------+-------+------+------+------+-------|
   |  2MB  |  (2)  | NONE  | NONE  | NONE | NONE | NONE |  off  |
   |       |  1M   |       |       |      |      |      |       |
   |-------+-------+-------+-------+------+------+------+-------|
   | 2.5MB |  (2)  |  (2)  |  (2)  | (2)  | (2)  | NONE |  on   |
   |       | 256K  | 256K  | 256K  | 256K | 256K |      |       |
   |-------+-------+-------+-------+------+------+------+-------|
   |  3MB  |  (2)  |  (2)  |  (2)  | (2)  | (2)  | (2)  |  on   |
   |       | 256K  | 256K  | 256K  | 256K | 256K | 256K |       |
   |-------+-------+-------+-------+------+------+------+-------|
   |  4MB  |  (2)  |  (2)  | NONE  | NONE | NONE | NONE |  off  |
   |       |  1M   |  1M   |       |      |      |      |       |
   |-------+-------+-------+-------+------+------+------+-------|
   |  6MB  |  (2)  |  (2)  |  (2)  | NONE | NONE | NONE |  off  |
   |       |  1M   |  1M   |  1M   |      |      |      |       |
   |-------+-------+-------+-------+------+------+------+-------|
   |  8MB  |  (2)  |  (2)  |  (2)  | (2)  | NONE | NONE |  off  |
   |       |  1M   |  1M   |  1M   |  1M  |      |      |       |
   |       |       |       |       |  x9  |      |      |       |
   |-------+-------+-------+-------+------+------+------+-------|
   | 10MB  |  (2)  |  (2)  |  (2)  | (2)  | (2)  | NONE |  off  |
   |       |  1M   |  1M   |  1M   |  1M  |  1M  |      |       |
   |-------+-------+-------+-------+------+------+------+-------|
   | 12MB  |  (2)  |  (2)  |  (2)  | (2)  | (2)  | (2)  |  off  |
   |       |  1M   |  1M   |  1M   |  1M  |  1M  |  1M  |       |
   +------------------------------------------------------------+