Compaq DESKPRO 2000 SERIES Maintenance & Service Manual page 234

Figure 6-7. 630-MB Seagate IDE Hard Drive Jumper Settings
6-8 Jumper and Switch Information
Seagate 630 MB
Assembly Number - 185352-001
1 2
3 4
5 6
7 8
Jumpers
Configuration
no jumpers The drive is Device 0; Device 1 is an ATA
compatable drive, or there is no Device 1
5 and 6 The drive is Device 0; a Device 1 is present,
but it is not ATA compatable
1 and 2 The drive is Device 0; a Device 1 is present,
but it does not have a DASP-signal
7 and 8 The drive is Device 1 to an ATA compatable
Device 0
3 and 4 Cable Select