A MASTER OR A SLAVE

 

A

DEVICE?

 

 

 

Before sliding

your CD-ROM

drive into the

5.25” drive

bay, you have to decide whether the drive

is

going to

be a master or slave device by adjusting the

and

jumpers on its

back. This

appendix presents

some

basic concepts

of IDE connections to help

you make the

decision and describes the

way to set the

jumpers.

A.1 IDE Connections

When you open your PC box, most likely you will see a wide ribbon cable with two 40-pin connectors stemming from a connector seat on the mother board; each of the connectors may or may not have been connected to a peripheral device. Such a cable is called an IDE cable and the connector seat an IDE port, The functionality of the cable and port is determined by an “IDE controller”, either built-in on your motherboard or in the form of an add-on card. This whole set of things acts as a data bridge between your CPU and devices that are designed for use with the IDE standards.

IDE Cable

Red

Floppy Cable

Primary Port

Figure A-1 IDE Port and Cable on Motherboard

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

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Philips PCA82CR, PCA102CD user manual Master or a Slave DEVICE?, IDE Connections