Upgrading the VAX 4000 Model 100A System
3.5 Installing the CPU Module
20. Reinstall the SIMMs as follows, beginning with the module closest to the
front of the enclosure (Figure 3–20).
Caution
When installing a SIMM, note that the connectors on the CPU module
are keyed so that you cannot install the module with an incorrect
orientation. Do not try to force a module into a connector with an
incorrect orientation.
Note
The SIMMs must be reinstalled into the same slots they came from.
1. Tip the memory module rearward.
2. Slide the module into its connector while still tipped rearward, and tip
it back upright.
3–26 Upgrading the VAX 4000 Model 100A System