Posted 19 December 2011 - 11:52 AM
Well, I can only suggest these things first off.
1) Check the jumper settings on the CD-ROM drive (If it's IDE.)
2) Disconnect the Floppy drive from the motherboard, and see if that fixes the boot problem.
3) If all fails, try to flash an updated BIOS. It could be that the motherboard somehow doesn't support booting from the CD-ROM.
Some more info about the machine could help as well.