[comp.sys.ibm.pc.misc] CompatiCard II/3.5" 1.4M floppy problems in PC clone

rlr@bbt.UUCP (rader) (08/16/90)

  I am currently running an expansion chassis off of a Visual Commuter
IBM/PC clone, containing a hard drive and mouse.  (The Commuter was
designed as a portable PC without expansion cards, necessitating the
expansion chassis).  I run MS-DOS 4.01.  My 3.5" drive is a Toshiba
ND3561.

  I purchased a 3.5" 1.4M floppy drive along with a CompatiCard II.
Supposedly, the CompatiCard will peacefully coexist with the on-board
primary diskette controller (which can't be disabled).  However, during
bootstrap, the CompatiCard software driver reports the following message:

WARNING:  The INT6/DRQ2 lines on the primary controller can't be disabled

  I cannot format either 720k or 1.4m floppies in the thing.  I usually
get a TRACK 0 UNUSABLE - FORMAT FAILURE on a 720k format, and a DATA
OVERRUN ERROR - FORMAT FAILURE on a 1.4m format.

  I can read and write to a properly formatted 720k diskette, however.
When I attempt a read or write on a properly formatted 1.4m diskette,
I get "DATA ERROR - ABORT, RETRY, FAIL."

  NOTE:  I've tried using a 5.25" 1.2M drive with the thing, and get
very similar results.  DATA ERROR when attempting to read 1.2M formatted
floppies, and GENERAL FAILURE when reading 360K floppies.

  I've tried different interrupt request lines and DMA channels (jumpered
on card), getting slightly different but always bad results.

  I installed the card and drive on an AT clone, and it worked like a
dream.  Peacefully coexisted with the primary controller and all.

  Does anyone in net.land have any experience with either the Visual
Commuter or the CompatiCard?  If so, I'd appreciate any email to help
me out of this bind.  Thanks in advance...

-- 
ron rader, jr               rlr%bbt@rti.rti.org = Opinions are my own and do not
| |  i gotta six-    rlr%bbt$rti.rti.org@CUNYVM = necessarily reflect those of
 | | pack, & nothin' to do ...!mcnc!rti!bbt!rlr = BroadBand Tech. (SO THERE!)
*** Punk ain't no religious cult, punk means thinking for yourself - DKs ***

-- 
ron rader, jr               rlr%bbt@rti.rti.org = Opinions are my own and do not
| |  i gotta six-    rlr%bbt$rti.rti.org@CUNYVM = necessarily reflect those of
 | | pack, & nothin' to do ...!mcnc!rti!bbt!rlr = BroadBand Tech. (SO THERE!)
*** Punk ain't no religious cult, punk means thinking for yourself - DKs ***