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# GIGA-BYTE TECHNOLOGY, INC.
GA-403F
+------------------------------------------------------------+
|------------------------------------------------------------|
| Data bus: | 32-bit, VL-bus |
|-------------------+----------------------------------------|
| Size: | Three/quarter-length, full-height card |
|-------------------+----------------------------------------|
| Hard drive | Up to seven SCSI devices |
| supported: | |
|-------------------+----------------------------------------|
| Floppy drives | Two 360KB, 720KB, 1.2MB or 1.44MB |
| supported: | drives |
+------------------------------------------------------------+
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-----------------------------------------------+------------|
| 4-pin connector - drive active LED | J1 |
|-----------------------------------------------+------------|
| 34-pin control cable connector - floppy drive | J2 |
|-----------------------------------------------+------------|
| 50-pin SCSI connector - internal | J6 |
|-----------------------------------------------+------------|
| 50-pin SCSI connector - external | J9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|------------------------------------+----------+------------|
| » | Main board supports VL-bus | JB1 | pins 2 & 3 |
| | ID3/synchronize local ready | | closed |
| | delay function. | | |
|---+--------------------------------+----------+------------|
| | Main board does not support | JB1 | pins 1 & 2 |
| | VL-bus ID3/synchronize local | | closed |
| | ready delay function. | | |
|---+--------------------------------+----------+------------|
| » | Floppy controller enabled | J5 | closed |
|---+--------------------------------+----------+------------|
| | Floppy controller disabled | J5 | open |
|---+--------------------------------+----------+------------|
| » | Floptical/SCSI floppy and HD > | J8 | open |
| | 1GB support disabled | | |
|---+--------------------------------+----------+------------|
| | Floptical/SCSI floppy and HD > | J8 | closed |
| | 1GB support enabled | | |
|---+--------------------------------+----------+------------|
| » | SCSI BIOS enabled | SW1/2 | on |
|---+--------------------------------+----------+------------|
| | SCSI BIOS disabled | SW1/2 | off |
|---+--------------------------------+----------+------------|
| » | BIOS floptical/SCSI floppy | SW1/7 | off |
| | support disabled | | |
|---+--------------------------------+----------+------------|
| | BIOS floptical/SCSI floppy | SW1/7 | on |
| | support enabled | | |
|---+--------------------------------+----------+------------|
| » | Floptical/SCSI floppy and HD > | SW1/8 | off |
| | 1GB support disabled | | |
|---+--------------------------------+----------+------------|
| | Floptical/SCSI floppy and HD > | SW1/8 | on |
| | 1GB support enabled | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|------------------------------------+-----------+-----------|
| » | SCSI synchronous negotiation | SW1/9 | on |
| | enabled | | |
|----+-------------------------------+-----------+-----------|
| | SCSI synchronous negotiation | SW1/9 | off |
| | disabled | | |
|----+-------------------------------+-----------+-----------|
| » | SCSI disconnect enabled | SW1/10 | on |
|----+-------------------------------+-----------+-----------|
| | SCSI disconnect disabled | SW1/10 | off |
|------------------------------------------------------------|
| Note:Manufacturer’s documentation concerning the functions |
| of SW1/7 & SW1/8 are conflicting. It is |
| |
| recommended that the user not alter factory-configured |
| settings. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SCSI ADDRESS |
|------------------------------------------------------------|
| Base Address | SW1/1 |
|---------------------------------+--------------------------|
| » | 340h | on |
|-----+---------------------------+--------------------------|
| | 140h | off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS ADDRESS |
|------------------------------------------------------------|
| Address | SW1/3 | SW1/4 |
|-----------------------+------------------+-----------------|
| » | DC000h | on | on |
|---+-------------------+------------------+-----------------|
| | D8000h | off | on |
|---+-------------------+------------------+-----------------|
| | CC000h | on | off |
|---+-------------------+------------------+-----------------|
| | C8000h | off | off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECT |
|------------------------------------------------------------|
| IRQ |SW1/5|SW1/6|J4/jumper |J4/jumper|J4/jumper|J4/jumper|
| | | | A | B | C | D |
|-------+-----+-----+----------+---------+---------+---------|
|»|IRQ11| off | on | open | open | closed | open |
|-+-----+-----+-----+----------+---------+---------+---------|
| |IRQ9 | off | off | closed | open | open | open |
|-+-----+-----+-----+----------+---------+---------+---------|
| |IRQ10| on | off | open | closed | open | open |
|-+-----+-----+-----+----------+---------+---------+---------|
| |IRQ12| on | on | open | open | open | open |
+------------------------------------------------------------+