Specifications

9-14 • Quick Reference AlphaServer 1000A Owner's Guide
Figure 9-7 shows the default settings for jumpers on the CPU card.
The J1 jumper on the CPU card activates the SROM tests and the fail-safe loader.
The J3 and J4 jumper settings affect clock speed and other critical settings for the
AlphaServer 1000A system. The J3 and J4 settings differ according to model.
Figure 9-7 CPU Card Jumper Positions for Normal Operation
MA00926
J1
7
6
5
4
3
2
1
0
Model 4/266
MA00951
J3
J4