Which of the following could have caused your two new IDE devices that is installed on the second
IDE controller, not to function? (Select all that apply.)

A.
Both devices are jumpered as master.

B.
The ribbon cable does not have a twist in it.

C.
Both devices are jumpered as slave.

D.
The red striped cable is connected to pin # 1.

Explanation:
If you have two drives on a bus and both are set to master, neither drive will work because they
will be fighting each other for control of the disks. If you have two drives on a bus and both are set
to slave, neither drive will work because the disks won’t know where to get their instructions from.
Incorrect Answers:
B: The twist in the cable will not result in non-functionality.
D: This symptom will not have non-functionality as a consequence.Reference:David Groth and
Dan Newland, A+ Complete Study Guide (2nd Edition), Sybex, Alameda, CA, 2001, p. 176.