Deskstar 25GP models: DJNA-352500, 352030, 351520, 351010
Deskstar 22GXP models: DJNA-372200, 371800, 371350, 370910

Jumper block location

Jumpers may be fitted to select the following options:

Notes:

1. 16 head logical architecture is enabled as the shipping default. Master is set to on (i.e. jumper on pins A-B and G-H). No other jumpers are fitted. 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.
2. Auto Spin Disable, disables the drive from automatically spinning up when power is applied.
3. The clip capacity 2GB option clips the capacity of the disk drive down to 2 GB. A 10.1GB drive with this option set will appear as a 2GB drive.