The hard drive jumper settings are simple, but each brand's jumper settings are not the same way. Here's a small series on the example of Seagate hard drive to say that the hard disk jumper set method. The way to set the jumper is to place the jumper position between the data cable interface and the power cord interface in the back of the hard disk. There are 4 of instructions for setting jumpers:
1, "Master or Single drive" refers to the setting of the hard disk or on the channel to connect only one hard drive, that is, the hard drive exclusive of an IDE channel, this channel can not have from the disk
2, "Drive is Slave" means that the current hard disk is a disk
3, "Master with a non-ata compatible slave" refers to the presence of a master disk, which is not compatible with the ATA interface hard disk, including the old-fashioned hard drive or SCSI interface hard drive that does not support DMA33
4, "Cable Select" refers to the use of data lines to select the main slave, this way to use a specially processed data line to set the master disk and from the disk, the 28th data line for the selection line, there is the main disk, no is from the disk.
Can be based on the above four to set the jumper on the hard disk, but may be due to the different brands of the hard drive, set the method a little deviation, then you can on the hard disk circuit board, hard disk front or the IDE interface to find the jumper description icon and then set it yourself.