You can't have LS-120 set for cable select and the CD-ROM set as a slave. I have never had an LS-120, so you need to check the user's guide to see if it should be a slave or a master on its channel.  If you no longer have the user's guide, try setting the CD as a master (put it on thelast plug on the cable) and the LS-120 as a slave.  If that doesn't work, just reverse it. My intuition tells me the CD-ROM should be set as a master and the LS-20 as the slave.  In that configuration they will be seen, but I don't know if your system will treat it as an A drive like that. Question, does your mobo have a separate channel plug for a true A drive?  If your system supports cable select, which it apparently does, why did you change the settings  for the two hard drives to master and slave instead of leaving everything as cable select?  It may be safer to just go back and change the hard drives to cable select and then change the CD-ROM to cable select.  It just might work that way, but it isn't going to work with cable select/slave on one channel, and master/slave on the other.

>I'm working on installing a new hard drive in a Pentium 350Mhz computer. It
>has a LS120 as A drive and a Quantum Fireball EX as C drive partitioned
>with a D as the extended. It was set with the C drive as master and the
>LS120 as CS on IDE1. The CDROM is on IDE2 as E drive set as SL.  The Bios
>was set as booting from A then C.
>
>I put the second hard drive, FUJITSU as a slave to The Quantium drive which
>is mastered on the IDE1 and put the LS120 leaving it set as CS and the
>CDROM  as SL to it on IDE2. The LS120 and CDROM are not recognized when
>trying to select them.
>
>Can anyone help me with this configuration? Since I have only one Monitor
>which  is connected to my Pentium III. Should it be the CDROM as a master
>on the LS120, before I have to move my monitor to the other room.
>
>Harvey Rose
>[log in to unmask]
>
>Which is worse, to spend more than you expected or less than you
>should?    Zig Ziglar
>
>              The NOSPIN Group is now offering Free PC Tech
>                     support at our newest website:
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