ADAPTEC, INC.
AHA-2842A
| 
 Card Type  | 
 Hard drive controller card  | 
| 
 Hard Drives supported  | 
 Up to 7 SCSI devices  | 
| 
 Floppy drives supported  | 
 Two 360KB, 720KB, 1.2MB, or 1.44MB drives  | 
| 
 Data Bus  | 
 32-bit VESA Local Bus  | 
| 
 Card Size  | 
 Full-length, full-height card  | 
| 
 CONNECTIONS  | |||
| 
 Function  | 
 Location  | 
 Function  | 
 Location  | 
| 
 4-pin LED connector  | 
 J1  | 
 50-pin SCSI connector - internal  | 
 J3  | 
| 
 34-pin Floppy drive connector  | 
 J2  | 
 50-pin SCSI connector - external  | 
 J4  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| » | 
 Write-back enabled  | 
 J5  | 
 Closed  | 
| 
 Write-back disabled  | 
 J5  | 
 Open  | |
| » | 
 Floppy controller enabled  | 
 S1/5  | 
 Off  | 
| 
 Floppy controller disabled  | 
 S1/5  | 
 On  | |
| » | 
 Host adapter BIOS enabled  | 
 S1/8  | 
 Off  | 
| 
 Host adapter BIOS disabled  | 
 S1/8  | 
 On  | |
| 
 I/O ADDRESS SELECTION  | |||||
| 
 Address  | 
 S1/1  | 
 S1/2  | 
 S1/3  | 
 S1/4  | |
| » | 
 1C00h  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | 
| 
 2C00h  | 
 On  | 
 Off  | 
 Off  | 
 Off  | |
| 
 3C00h  | 
 Off  | 
 On  | 
 Off  | 
 Off  | |
| 
 4C00h  | 
 On  | 
 On  | 
 Off  | 
 Off  | |
| 
 5C00h  | 
 Off  | 
 Off  | 
 On  | 
 Off  | |
| 
 6C00h  | 
 On  | 
 Off  | 
 On  | 
 Off  | |
| 
 7C00h  | 
 Off  | 
 On  | 
 On  | 
 Off  | |
| 
 8C00h  | 
 On  | 
 On  | 
 On  | 
 Off  | |
| 
 9C00h  | 
 Off  | 
 Off  | 
 Off  | 
 On  | |
| 
 AC00h  | 
 On  | 
 Off  | 
 Off  | 
 On  | |
| 
 BC00h  | 
 Off  | 
 On  | 
 Off  | 
 On  | |
| 
 CC00h  | 
 On  | 
 On  | 
 Off  | 
 On  | |
| 
 DC00h  | 
 Off  | 
 Off  | 
 On  | 
 On  | |
| 
 EC00h  | 
 On  | 
 Off  | 
 On  | 
 On  | |
| 
 FC00h  | 
 Off  | 
 On  | 
 On  | 
 On  | |
| 
 Reserved  | 
 On  | 
 On  | 
 On  | 
 On  | |
| 
 BIOS ADDRESS SELECTION  | |||
| 
 Address  | 
 S1/6  | 
 S1/7  | |
| 
 C8000h  | 
 On  | 
 Off  | |
| 
 D0000h  | 
 Off  | 
 On  | |
| » | 
 D8000h  | 
 Off  | 
 Off  | 
| 
 E0000h  | 
 On  | 
 On  | |