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# TEKRAM TECHNOLOGY CO., LTD.
DC-690B
+------------------------------------------------------------+
|------------------------------------------------------------|
| Data bus: | 32-bit, PCI |
|-------------------+----------------------------------------|
| Size: | Three/quarter-length, full-height card |
|-------------------+----------------------------------------|
| Hard drive | Four IDE (AT) Interface drives |
| supported: | |
|-------------------+----------------------------------------|
| Floppy drives | None |
| supported: | |
+------------------------------------------------------------+
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|---------------------------------------------+--------------|
| 40-pin IDE (AT) Interface connector - IDE-0 | CN1 |
|---------------------------------------------+--------------|
| 40-pin IDE (AT) Interface connector - IDE-1 | CN2 |
|---------------------------------------------+--------------|
| 14-pin PCI legacy-header connector | CN3 |
|---------------------------------------------+--------------|
| 10-pin cable connector to JP4 | CN4 |
|---------------------------------------------+--------------|
| 2-pin connector - drive active LED | JP1 |
|---------------------------------------------+--------------|
| 4-pin connector - cache error speaker | JP2 |
|---------------------------------------------+--------------|
| 10-pin cable connector to CN4 | JP4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PCI INTERRUPT SELECTION |
|------------------------------------------------------------|
| INT |JP3/jumper 1|JP3/jumper 2|JP3/jumper 3|JP3/jumper 4|
|--------+------------+------------+------------+------------|
|»| INTA | closed | open | open | open |
|-+------+------------+------------+------------+------------|
| | INTB | open | closed | open | open |
|-+------+------------+------------+------------+------------|
| | INTC | open | open | closed | open |
|-+------+------------+------------+------------+------------|
| | INTD | open | open | open | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|-----------------------------------+--------------+---------|
| » | Hard drive port address 1F0h | JP3/jumper 5 | closed |
| | and IRQ14 enabled | | |
|---+-------------------------------+--------------+---------|
| | Hard drive port address 170h | JP3/jumper 5 | open |
| | and IRQ15 enabled | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRIVE ACTIVE LED ERROR CODES (IMMEDIATELY AFTER POWER-UP) |
|------------------------------------------------------------|
| Status | Function |
|----------------------------+-------------------------------|
| One short flash | No cache DRAM installed |
|----------------------------+-------------------------------|
| Two short flashes | CPU error |
|----------------------------+-------------------------------|
| Three short flashes | SRAM error |
|----------------------------+-------------------------------|
| Four short flashes | Timer error |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTES |
|------------------------------------------------------------|
| Some versions of this board have two 512KB x 8 DRAM chips |
| mounted in place of Bank 0. In such a case the board will |
| work without additional memory. In all other cases a pair |
| of 256KB, 1MB, or 4MB SIMM modules must be installed in |
| Bank 0 for the board to function. |
| |
| The optional ISA/EISA paddleboard solves the DC-690B |
| incompatibility problem with some early PCI mainboards. If |
| installed, connect CN3 to JP4, and set JP4/jumpers 1-4 in |
| the open position. |
+------------------------------------------------------------+