Deskstar and CinemaStar
Jumper settings

Note: Serial-ATA models do not have jumpers. Serial-ATA does not require you to set jumpers and operates without them.

Models: (Parallel only)
Deskstar 7K1000: HDS721075KLAT80, HDS721010KLAT80, HDS721075KLA330, HDS721010KLA330
CinemaStar 7K1000: HCS721075KLAT80, HCS721010KLAT80, HCS721075KLA330, HCS721010KLA330

Jumper locations

16 head logical use settings:

Note: Some systems may require you to use the 15 head logical architecture. This is because they translate a drive greater than 4 GB by multiplying the head count by 16. The result (16 x 16 = 256) is interpreted as 0 heads with a 0 capacity and is an illegal head count. Selecting the 15 head logical jumpers produces a legal translation (16 x 15 = 240). The translated cylinder count varies to achieve the drive's full capacity.

15 head logical use settings:

Notes:

1. To enable the CSEL mode (Cable Selection mode) the jumper block must be installed at E-F. In the CSEL mode, the drive address is determined by AT interface signal #28 CSEL as follows:
   1. When CSEL is grounded or at a low level, the drive address is 0 (Device 0).
   2. When CSEL is open or at a high level, the drive address is 1 (Device 1).
2. In CSEL mode, installing or removing the jumper blocks at A-C or B-D position does not affect any selection of Device or Cable Selection mode.

 

Disabling auto spin

These jumper settings are used for limiting power supply current when multiple drives are used. The command to spin up is SET FEATURES (subcommand 07h).