Hi Old-timer, I also have a CD-RW and a CD-Rom. When I installed the CD-RW (and made it Master) I left the sound cable attached between the CD-Rom and the motherboard. Therefore there is no sound cable from the CD-RW. Consequently, I can hear sound through the speakers and the head phones from the CD-Rom but only through the headphones from the CD-RW. I would suggest you check on how many sound cables you have and to what they are attached.
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