TEXT View Source
# ADAPTEC, INC.
AHA-1520B
Card Type Hard drive controller card
Hard Drives supported Up to 7 SCSI devices
Floppy drives supported None
Data Bus 16-bit ISA
Card Size Three-quarter length, half-height card
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location | Function | Location |
|------------------------+----------+-------------+----------|
| 4-pin connector - | CN1 | 50-pin SCSI | CN3 |
| drive active LED | | connector - | |
| | | external | |
|------------------------+----------+-------------+----------|
| 50-pin SCSI connector | CN2 | | |
| - internal | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Factory configured - do not | SW1/4 | Unidentified |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | SW1/1 | SW1/2 | SW1/3 |
|------------------------+-----------+-----------+-----------|
| DC000-DFFFFh | Off | Off | Off |
|------------------------+-----------+-----------+-----------|
| D8000-DBFFFh | On | Off | Off |
|------------------------+-----------+-----------+-----------|
| D4000-D7FFFh | Off | On | Off |
|------------------------+-----------+-----------+-----------|
| D0000-D3FFFh | On | On | Off |
|------------------------+-----------+-----------+-----------|
| CC000-CFFFFh | Off | Off | On |
|------------------------+-----------+-----------+-----------|
| C8000-CBFFFh | On | Off | On |
|------------------------+-----------+-----------+-----------|
| Inactive | Off | On | On |
|------------------------+-----------+-----------+-----------|
| BIOS PROM disabled | On | On | On |
|------------------------------------------------------------|
| Note: Do not use the inactive setting in Legacy/Non-Plug |
| and Play systems. If you disable the BIOS PROM, you must |
| run SCSISelect to synchronize the host adapter’s resource |
| table with your new selection. Synchronization is |
| automatically performed just by entering SCSISelect. |
+------------------------------------------------------------+