My PC has 3 SATA hard drives two of which are striped raid, and all have worked well for several years. I tried to upgrade my IDE DVD drive to a SATA DVD drive, but as soon as the computer starts up I get a disk error and all three hard drives cannot be seen (they are not listed in the start up screen). When I take out the SATA DVD drive out and replace it with an IDE drive everything works perfectly. The Tech guys changed the ports the hard drives were plugged into (from 1-3 to 3-5) but it made no difference. Is there any reason why this is happening and how can I fix it?
I am not a technician so simple explainations would be very useful. Thank you