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Friday, November 13, 2009

How to set Jumper Pin settings on a CD rom or hard drive

When installing a CD/DVD rom drive or even a hard drive, there are some tiny little pins at the back that sometimes need to be adjusted. If you do not have the jumper in the correct position, your device will not be recognised by the computer.

There are three basic jumper pin settings:
1. Cable Select
2. Master
3. Slave

Cable Select To use this setting you will need a cable select compatible IDE cable. They have a blue end. This will allow you to connect Two devices on the same cable. The cable decides which is master and which is slave. By default the device plugged in on the end of the IDE will be the master. For Example: If you installed two hard drives you will definitely want your computer to boot to the main one with the operating system on it. Therefore that harddrive will be plugged in on the last connection and the slave hard drive will be on the middle connection. The other end will be connected to the motherboard.

Master: If you do not have a cable select cable, set your main hard drive to master.
This also applies if you have two CD Roms.
Slave :Use this setting when you install a second harddrive or cd rom and use the same cable for both.
The main is the master..

Note: Don't put a cd rom on the same cable as a hard drive. But you can have two hard drives together
or two CD roms.

How do you find the Jumper pin settings combination?

  • A blue end on the IDE cable means it is a cable select. A normal black one means you have to set the hard drive jumper pins to either master or slave. The blue end connects to the motherboard. Sometimes the connection on the motherboard is blue also.

  • A master gets plugged into the end of the IDE cable.

  • If you wanted to add another hard drive you should have a master and a slave, selected with the jumper pins at the back of the harddrive. However the easiest way is to set them both to cable select. Then connect them on the same IDE Cable( they usually have two connections) but put the main hard drive on the last or end connection of the IDE cable. This way the one connected on the lower is the slave.

  • Now days the default settings are cable select. All new cables, devices, and motherboards are compatible.

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