ADAPTEC, INC.
AHA-2840VL, AHA-2842VL
|
Data bus: |
32-bit VL-Bus |
|
Size: |
Full-lengh, full-height card |
|
Hard drive supported: |
Up to seven SCSI devices |
|
Floppy drives supported: |
Two 360KB, 720KB, 1.2MB, or 1.44MB drives |
|
CONNECTIONS | |
|
Function |
Location |
|
4-pin connector - drive active LED |
J1 |
|
34-pin floppy drive connector |
J2 |
|
50-pin SCSI connector - internal |
J3 |
|
50-pin SCSI connector - external |
J4 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Location |
Setting | |
|
|
Floppy drive enabled |
S1/switch 5 |
off |
|
|
Floppy drive disabled |
S1/switch 5 |
on |
|
|
Host adapter BIOS enabled |
S1/switch 8 |
off |
|
|
Host adapter BIOS disabled |
S1/switch 8 |
on |
Note: Disabling the host adapter BIOS for non-disk devices such as CD-ROM drives, tape drives, will reduce boot up time. | |||
|
I/O ADDRESS SELECTION | |||||
|
Address |
S1/Switch 1 |
S1/Switch 2 |
S1/Switch 3 |
S1/Switch 4 | |
|
|
1C000h |
off |
off |
off |
off |
|
|
2C000h |
on |
off |
off |
off |
|
|
3C000h |
off |
on |
off |
off |
|
|
4C000h |
on |
on |
off |
off |
|
|
5C000h |
off |
off |
on |
off |
|
|
6C000h |
on |
off |
on |
off |
|
|
7C000h |
off |
on |
on |
off |
|
|
8C000h |
on |
on |
on |
off |
|
|
9C000h |
off |
off |
off |
on |
|
|
AC000h |
on |
off |
off |
on |
|
|
BC000h |
off |
on |
off |
on |
|
|
CC000h |
on |
on |
off |
on |
|
|
DC000h |
off |
off |
on |
on |
|
|
EC000h |
on |
off |
on |
on |
|
|
Reserved |
off |
on |
on |
on |
|
|
Reserved |
on |
on |
on |
on |
|
BASE ADDRESS SELECTION | ||
|
Address |
S1/Switch 6 |
S1/Switch 7 |
|
D8000h |
off |
off |
|
C8000h |
on |
off |
|
D0000h |
off |
on |
|
E0000h |
on |
on |
|
MISCELLANEOUS TECHNICAL NOTES |
|
Only single-ended SCSI devices can be connected to the AHA-2840VL/2842VL. |