Compaq Prolinea Family Maintenance & Serice Manual page 164

Table 6-20. 2.1 GB Seagate SCSI-2 Hard Drive Jumper Options (Shipped
configuration below)
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Jumper Option
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J01
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1 - 2 ON
3 - 4 OFF
J04
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1 - 2 OFF
3 - 4 ON
5 - 6 OFF
7 - 8 OFF
9 - 10 OFF
11 - 12 ON
13 - 14 OFF
Description
Terminator Power SCSI Address, Unit Select 1
Spindle Sync Connector
Initiate SDTR Message at Power-On and Reset
Remote LED Connector
Write Protect Disabled
Delayed Motor Start Disabled
Spin Up with Start Unit Command
Parity Checking Enabled