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# ADAPTEC, INC.
AHA-3980W, AHA-3985W
Data Bus 32-bit PCI
Card Size Three-quarter length, full-height card
Card Drives Up to 30 Fast and Wide SCSI devices (model
supported AHA-3980W)
Up to 45 Fast and Wide SCSI devices (model
AHA-3985W)
Floppy drives None
supported
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location | Function | Location |
|-------------------+----------+------------------+----------|
| 4-pin connector - | J3 | 68-pin SCSI | J8 |
| drive active LED | | channel C | |
| | | connector - | |
| | | internal (model | |
| | | AHA-3985W only) | |
|-------------------+----------+------------------+----------|
| 68-pin SCSI | J4 | 68-pin SCSI | J12 |
| channel A | | channel A | |
| connector - | | connector - | |
| internal | | external | |
|-------------------+----------+------------------+----------|
| 68-pin SCSI | J6 | | |
| channel B | | | |
| connector - | | | |
| internal | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-----------------------------------------+-------+----------|
| » | Channel A bus is connected to one | J2 | Open |
| | computer only | | |
|---+-------------------------------------+-------+----------|
| | Channel A bus is shared by two | J2 | Closed |
| | computers | | |
|---+-------------------------------------+-------+----------|
| » | Channel B bus is connected to one | J5 | Open |
| | computer only | | |
|---+-------------------------------------+-------+----------|
| | Channel B bus is shared by two | J5 | Closed |
| | computers | | |
|---+-------------------------------------+-------+----------|
| » | Channel C bus is connected to one | J7 | Open |
| | computer (AHA-3895W only) | | |
|---+-------------------------------------+-------+----------|
| | Channel C bus is shared by two | J7 | Closed |
| | computers (AHA-3895W only) | | |
|---+-------------------------------------+-------+----------|
| » | Host computer supports PCI | J10 | Open |
| | interrupts A, B, C, & D | | |
|---+-------------------------------------+-------+----------|
| | Host computer supports PCI | J10 | Closed |
| | interrupts A & B only | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTES |
|------------------------------------------------------------|
| Jumpers J2, J5 and J7 enable other adapter cards on |
| different computers to share devices on channels |
| |
| A, B, and C (AHA-3895W only) with this adapter card. |
| Device access is sequential. |
+------------------------------------------------------------+