220-802 · Question #871
A user has recently added a second IDE CD-RW drive to a machine in addition to the primary DVD-ROM drive. The drive opens and closes; however, they do not see it show up in Windows. Which of the…
The correct answer is A. The drive jumper settings are incorrect. When two IDE drives share the same channel, their master/slave jumper settings must be configured correctly or the secondary drive will not be detected by the OS.
Question
A user has recently added a second IDE CD-RW drive to a machine in addition to the primary DVD-ROM drive. The drive opens and closes; however, they do not see it show up in Windows. Which of the following is the MOST likely cause?
Options
- AThe drive jumper settings are incorrect.
- BThe drive is not receiving power from PSU.
- CWindows only supports one optical drive.
- DThe user connected the drive with a SATA cable.
How the community answered
(40 responses)- A75% (30)
- B8% (3)
- C13% (5)
- D5% (2)
Why each option
When two IDE drives share the same channel, their master/slave jumper settings must be configured correctly or the secondary drive will not be detected by the OS.
IDE (PATA) drives use jumper pins to define their role as Master, Slave, or Cable Select on a shared channel. If the second CD-RW is jumpered as Master while the existing DVD-ROM is also set to Master, or the Slave setting is missing, the system cannot enumerate the second drive, causing it to be invisible to Windows even though it receives power and can mechanically open and close.
If the drive were not receiving power, it would not be able to open and close its tray at all, ruling out a power delivery problem.
Windows has always supported multiple optical drives simultaneously; there is no single-optical-drive limitation.
An IDE drive uses a PATA ribbon cable, not a SATA cable; connecting them incorrectly with a SATA cable would be a physical impossibility given the different connector types, and is not described in the scenario.
Concept tested: IDE drive master/slave jumper configuration
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