i have installed 2nd hard drive,which took the drive letter of the cd rom drive. i have changed the hard drive letter, but now cannot locate the cd rom drive? Any ideas?????

Did you make sure and reconnect the IDE cable to the CD drive? EEOC

Have checked CD drive. Has power cable and main thick grey cable attached. Master cd rom end is attached to cd rom and secondary connection, connected to hard drive. When i go to BIOS, only the hard drive is showing up as the secondary master, secondary slave is not locating a device. (original hard drive connected to primary cable). I have tried swapping primary and secondary cables and get the same problem with the 2 hard drives on the secondary cable system (cd rom locates when connected to primary). Can't see any other cables to connect (is the IDE cable the small square one you sometimes get?? not one on this cable run)...any ideas???

It sounds like the Secondary IDE controller is disabled in the BIOS. If you have TWO drive connected to ONE cable they must work together. Either both must be jumpered as CS (cable Select), in which case the end connector will be the master drive. Or make one Master and one Slave, in which case it doesn't matter which connector you use, the master will be the master and so on. If I understand you correctly, you now have 3 drives. If all are connected using the wide ribbon cables then one of the drives is ALONE on one of the channels. There are a couple of things to note in this case. First, the Secondary IDE channel must be enabled in the BIOS screens. That is usually located on the second or third screen. Second, if you have a Western Digital Hard drive and it is connected by itself there is a special jumper setting for Master Alone. Best to make the boot drive the Primary Master and then install the other two drives on the Secondary channel.

Cheers for that. I have moved the jumpers on the second hard drive to slave position and everything is hunky dory!!!!

Good to hear. Thanks for getting back to us.