IBM Aptiva 2142 - Manual (Page 159)

For jumper settings, match your hard disk drive to one of the following
figures.
1 = Master Drive 2 = Slave Drive.
Figure 5-7. Maxtor Hard Disk Drives
2
Jumper
Block
Figure 5-8. Western Digital Hard Disk Drives
Continued on next page.
Parts/Test Point Locations 5-11