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Problems connecting an Optical Drive (SCSI)

Posted on 1998-08-19
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Last Modified: 2013-12-09
I have a Pentium 200 with a Western Digital PCI-SCSI card.
I have 2 optical drives - a HP1716T and a Plasmon RF6940.
When I connect the new Plasmon drive and do an <ALT-W>
when it boots I can see it with ID's 2-6 (7 is the card), but when it scans the chain normally (after the <ALT-W> message it doesn't show the name and windows cannot see it.
If I plug the old HP drive in, it shows the name when it scans after the <ALT-W> message, but I still cannot see it in Win95.

I have installed the Corel SCSI software but the SCSI Tools
program scans the chain but doesn't see the drive (whichever
one I have plugged in).

The card in the computer is a wide SCSI so I plugged in the
cable from the old drive into the new one (which had a narrow SCSI cable with it), does this matter?

I have terminated the drives.  I don't know if it is active or passive but it is the terminator we got with the new drive.

Anyone got any suggestions?

thanks,

Paul.
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Question by:paulkitching
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4 Comments
 
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Expert Comment

by:mark2150
ID: 1123216
Yes, cables do matter.

You should only have *one* terminator on the SCSI bus and that should be at the far end. Check to be sure that the drives don't have internal termination.

Check the device addresses and make sure both drives are unique.

Be sure to do a SCSI RESET before querying status.

M

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Author Comment

by:paulkitching
ID: 1123217
I do only have one terminator but I was trying it on each drive seperatly - not both drives on at once.

The drives do not have internal termination (I know one has a dip switch setting but the default it OFF).

Both drives have a different ID to anything else (but like I said I didn't have both drives connected at the same time - I am only trying two drives seperatly to see if I can get one of them to work).

And yes, when I change the ID's the drives were switched off.
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Accepted Solution

by:
ezrider081398 earned 100 total points
ID: 1123218
Checked the properties of your SCSI in the "control Panel". Make sure the driver is the SCSI driver and not a Windows driver.
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Author Comment

by:paulkitching
ID: 1123219
By Control Panel do you mean the System Properties within that, or should I have a SCSI icon?
I have had a look the the 'SCSI Controllers|Western Digital wd7296a SCSI Host Adapter' properties and in the drivers tab it has C:\WIN95\SYSTEM\IOSUBSYS\WD7296a.mpd should this be something else?
I have looked in the CORELDRV directory and there are no .mpd files there, only things like .dll, .sys, .exe.  I don't know which it should be.  But here is my Autoexec.bat & Config.sys

AUTOEXEC

C:\PROGRA~1\DRSOLO~1\ANTI-V~1\GUARD
lh C:\ESSUTIL\ESSCFG.EXE /A:220 /I:5 /D:1 /B:330 /J:E
lh C:\ESSUTIL\ESSVOL.EXE /V:8 /L:8 /W:8 /M:0 /C:8 /S:8 /A:0
rem lh c:\mouse\imouse.com
path f:\apps\crw;C:\ALDUS;C:\CLASSIC;C:\WIN95;C:\WIN95\COMMAND;C:\WFW311;c:\dos;f:\apps\visualdb\bin;f:\apps\visualdb\crystal
SET LMOUSE=C:\LOGIMOUS
lh C:\LOGIMOUS\MOUSE.EXE
SET TEMP=C:\WFW311\TEMP
rem rjg LH C:\WIN95\COMMAND\MSCDEX /D:MSCD000
mode con codepage prepare=((850) C:\WIN95\COMMAND\ega.cpi)
mode con codepage select=850
lh keyb uk,,C:\WIN95\COMMAND\keyboard.sys

rem c:\dos\share.exe /L:500 /F:5100 <- C.Reports
Set NWLANGUAGE=ENGLISH
SET PATH=%PATH%;C:\CORELDRV
C:\CORELDRV\CORELCDX


CONFIG

LASTDRIVE=Z
device=C:\WIN95\HIMEM.SYS
device=C:\WIN95\emm386.exe ram on
dos=high,umb
DEVICEHIGH=C:\ESSUTIL\ES1868.COM /A:0 /I:0
DEVICEHIGH=C:\CDROM\GSCDROM.SYS /D:MSCD000 /v
devicehigh=C:\WIN95\COMMAND\display.sys con=(ega,,1)
Country=044,850,C:\WIN95\COMMAND\country.sys

DEVICEHIGH=C:\CORELDRV\UNI_ASP.SYS

DEVICEHIGH=C:\CORELDRV\CUNI_ASP.SYS
rem DEVICE=C:\IPDELUXE\GSCAN.SYS
files=110
buffers=20
rem LASTDRIVE=Z

The CRLSCSI.INI file mentions a driver MSCD001 which dos cannot find (it's not anywhere on C: - I looked).  Here is the INI file


[CorelSCSI Tools]
mode=1
logdir=C:\CORELDRV
log=SCSIUTIL.LOG

[SCSI Diags]
loops=1
tests=15

[SCSI History]
markDefaults=113

[SCSI Utils]
scan=0
erase=0

[UNI Drivers]
CACHEBUFFERS=16
CACHETYPE=DEFAULT
USEEMS=YES
PAUSE=YES
VERBOSE=NO
LUNSCAN=YES
AUTOSCAN=YES
NUMDEVICES=1
NUMEXCLUDE=0
DEVICE0=5;0;0;0;1

[UNI Drivers Advanced]
FLUSHCOUNTER=512
FLUSHTIMER=1
MOUNT=4
SCACHE=5
SECTORSIZE=1024
DEVICESIZE=0
TIMEOUT=15
BOOTWRITE=NO
VERIFY=WRITEVERIFY

[APPS]
DEVICEINDEX=0
apps=95
color=2
tbar=3
selbar=0;1;0;1;0;0;0;
[UNI Device Locations]
LOCS0=19

[CDROM Drivers]
DRIVERNAME=MSCD001

[CORELCDX]
DRIVERNAME=MSCD001
EMSMODE=3


I also get errors while Win95 boots, saying there are problems with the CD - but it does still work!
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