On Sun, 27 Dec 1998, Jason Willgruber wrote:
Anyone have the DIP settings for a Seagate ST-506
(full-height 5.25", 5 MB)
HD? I can't seem to find it on Seagate's website (or am I just looking in
the wrong place?) I'm trying to set it up as HD [0] on an IBM PC using a
Western Digital XT-GEN controller. The HD appears to be recognized by the
controller BIOS to do a LLF, but isn't recognized by MS-DOS FDISK (5.0 - I
don't have anything smaller on 5.25" disks). It just says "error reading
Hard Disk". I can only think of two things :wrong jumper settings, or wrong
interleave setting. When I LLF'ed it, I left it at <3>, which is what was
the ?default? was set at. Or is the WD-XT-GEN too new of a controller for
the ST-506 (controller is dated 1987). One last thing: Does anyone have a
360k image (or TeleDisk Image) of IBM PC-DOS 3.0 or earlier (If you need a
copy of TeleDisk, email me, and I can email you a copy).
ST-506
Option Shunt Block
____ ____
| |__| |
1 | R | 16
2 | D | 15
3 | NC | 14
4 | H | 13
5 | DS4 | 12
6 | DS3 | 11
7 | DS2 | 10
8 | DS1 | 9
|__________|
Legend:
R Radial Operation
*D Defeat Recalibration
*H Half Step Option
DSn Drive Select
* Factory selection
Opening the Half Step option should improve access time.
The proper interleave setting is a function of the controller rather than
the HD, so 3 should be OK.
- don