*"upon restart attempt, startup chime keeps repeating"*
That could be the RAM.
1 tone, a 5-second pause, repeat No RAM installed
3 successive tones, a 5-second pause, 3 successive tones RAM does not pass data integrity check
1 long tone when holding down the power button Firmware upgrade in process. See this article for more details.
3 long tones, 3 short tones, 3 long tones Firmware restoration from CD in process. See this article for more details.
*"I tried to restart with Boot CD and MCB Pro will not recognize disc"*
Scroll down to where you see, Use fsck.