OSINTPAH - THINKPAD CD-ROM DRIVE ATTACHED TO AHA152x NOT RECOGNIZED
AFTER OS/2 WARP INSTALLATION
06/18/96

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      ThinkPad CD-ROM Drive Attached to AHA152x Not Recognized after OS/2
                                        Warp Installation
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Please Read Entire Document for Full Explanation of Procedures
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DESCRIPTION

An IBM ThinkPad connected to Docking Station II with the CD-ROM drive 
attached to an Adaptec 1510, 1520, or 1522 controller is not recognized 
after OS/2 Warp installation.

When doing a Selective Install for the CD-ROM, the system configuration 
indicates no CD-ROM support, which was present during initial 
installation. If the CD-ROM is selected as source, the directory 
program returns the message:

   Invalid source directory.

RESOLUTION

Note: Make sure you have a backup of any file you intend to change.

PCMCIA drivers use IRQ 11, which is the default for the Adaptec SCSI 
adapter in the Docking Station. This IRQ conflict makes the CD-ROM 
unusable.

Assign IRQ 9, or any free IRQ, to the SCSI adapter through the Docking 
Station II setup (Control A).

The ThinkPad has an IDE hard disk, and the Docking Station has a SCSI 
hard disk. Edit the CONFIG.SYS file and move the SCSI driver statements 
ahead of the IDE driver statement.

Additional information can be found on the Personal Computer Help 
Center web page:

   http://www.pc.ibm.com/support/tps/tpos2.html

or by calling the PCCO Support Center at 1-800-772-2227.

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