DEC AlphaServer 1000A Owner's Manual page 189

Figure 9-6 shows the system board jumper settings for normal operation.
Figure 9-6 System Board Jumper Positions for Normal Operation
VGA Enable (J27)
Flash ROM
VPP Enable (J50)
AlphaServer 1000A Owner's Guide
Large Fan (J16)
Small Fan (J55)
Force
Shutdown (J53)
Temperature
Shutdown (J52)
Fan Fault (J56)
SCSI
Termination (J51)
MA00924
Quick Reference 9-13