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NT4 cannot detect second CDROM drive

Posted on 1998-12-31
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Last Modified: 2013-12-28
My machine is Pentium II 333/64, multiple boot, with Windows 95/Windows NT4/Windows NT5(beta testing).
Both Win95 and WinNT5 can detect a second CDROM drive (a SCSI CD recorder), but, for some reason, Windows NT4 cannot.
The weird thing is, it was being detected before. Don't remember what I did so that now WinNT4 does not show a second CD drive letter.
Does anybody know how to 'install' the second CD drive in Windows NT4?. As you know, Control Panel does not have options for 'Add/Remove hardware'.
I did the regular installation for this CD drive, with the software provided (drivers, etc.)
TIA for any help provided.
Feliz Año Nuevo ! (Happy New Year!).

Efrain R Portales
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Question by:efrain12
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Expert Comment

by:blownalky
ID: 1796684
Try using Disk Administrator and assigning it a drive letter.
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Author Comment

by:efrain12
ID: 1796685
Disk Administrator does not provide a solution for this.
What it can do is change the drive letter for a specific configuration, but will not add another letter for a drive if the system does not recognize it.
Thanks anyway for your reply.
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Accepted Solution

by:
hstiles earned 50 total points
ID: 1796686
Open Control Panel\SCSI Adapters and see if your SCSi card is included in the list of installed devices.  It probably isn't.
Click on the 'drivers' tab and install the relevant files for your SCSI and reboot when prompted.
Go back into Control Panel\SCSI devices and click on the plus sign.  You should see your CD device attached to one of the channels.
Remember, NT4 doesn't support plug and play natively, so unless the SCSI card was present and detected when running the pre-installation setup it won't be installed.
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Author Comment

by:efrain12
ID: 1796687
Your suggestion led me to discover there was a conflict between the CMOS being setup to PnP enabled or disabled.
First, I had the setup as PnP enabled because I have a PCI PnP Winmodem and it was working ok. But, with this setup, the SCSI CDROM was not being detected.
When I changed the setup to 'PnP disabled', I could install
the drivers and had the CD drive detected. However, with this setup the modem was not detected.
After doing some other changes, my system became unstable and crashed !.
Fortunately, I have a multiple boot machine and I'm going to forget about the infamous Windows NT4 and stick with Windows NT5 (I'm beta testing it and it works ok).
This new O.S. has been behaving nicely, specially with those new features like being native PnP, plus a lot more functions like 'Device Manager', 'Hardware Wizard', etc. I really like it.
Thanks for your input.
Happy New Year !.

Efrain R Portales
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