Seagate DiamondMax 21 Manual download pdf (Page 31)

DiamondMax 21 PATA Product Manual, Rev. B 25

3.3 Jumper settings

3.3.1 Master/slave configuration

The options jumper block shown in Figure 4 is used to configure the drive for operation. It is the 8-pin dual

header between the interface connector and the power connector. Use the following settings to configure the

drive as a master or a slave.

Master or single drive. The drive is configured at the factory for a master or single-drive operation with a

jumper set on pins 7 and 8.

Drive as slave. Remove all jumpers.

Drive as master with a non-ATA-compatible slave.

Use this jumper setting only if the drive does not work as a master with no jumpers installed.

Figure 4 Master/slave jumper settings

3.3.2 Cable-select option

Computers that use cable select determine the master and slave drives by selecting or deselecting pin 28,

CSEL, on the interface bus. Master and slave drives are determined by their physical position on the cable. To

enable cable select, set a jumper on pins 5 and 6 as shown in Figure 4. Refer to your computer manual to

determine whether your computer supports this option.

Options jumper block

684

1753

Drive is slave

*Master or single drive

*Cable select

Master with non ATA-

compatible slave

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Seagate DiamondMax 21 Manual Page 31