Maxtor DiamondMax Plus9 60GB AT Product Manual page 24

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 Maxtor DiamondMax Plus9 drives is
shown in the following table:
Pin 1
7.22±0.50
(to pin center)
Figure 3-5
3-8 Maxtor DiamondMax Plus9 60/80/120/160/200GB AT
CLJ JUMPER OUT
C=16,383
H=16
60GB
S=63
LBA=120,103,200
C=16,383
H=16
80GB
S=63
LBA=160,086,528
C=16,383
H=16
120GB
S=63
LBA=240,121,728
C=16,383
H=16
160GB
S=63
LBA=320,173,056
C=16,383
H=16
200GB
S=63
LBA=398,297,088
Pin 1 of AT Connector
29.78±0.50
(to pin center)
AT Connector and Jumper Location
Connector Side
C L
4.55±0.50