Maxtor MaxLine Plus II 250GB AT Product Manual page 23

Installation
3.3.1.4 Cylinder Limitation Jumper (CLJ)
For user capacities below 66,055,248 sectors (32GB), inserting the CLJ jumper limits
the Number of Cylinders field 1 to a value of 16,383, as reported in IDENTIFY
DEVICE data word. This allows software drivers to determine that the actual
capacity is larger than indicated by the maximum CHS, requiring LBA addressing to
use the full capacity.
A summary of these effects for the
in the following table:
Pin 1
7.22±0.50
(to pin center)
3-8 Maxtor MaXLine Plus II 250GB AT
CLJ JUMPER OUT
C=16,383
H=16
250GB
S=63
LBA=490,234,752
Pin 1 of AT Connector
29.78±0.50
(to pin center)
Figure 3-5
AT Connector and Jumper Location
Maxtor MaXLine Plus II 250GB AT
Connector Side
drives is shown
C L
4.55±0.50