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Upgrading the VAX 4000 Model 100A System
3.5 Installing the CPU Module
14. To install the new CPU module, follow these steps:
a. Place the CPU module in the enclosure so that the connectors on the
CPU module align with the corresponding cutouts in the back panel of
the enclosure. Use the ThinWire Ethernet port as an anchor point to
adjust the position of the CPU module correctly.
b. Align the keyhole cutouts in the CPU module with the corresponding
standoff pillars in the base of the enclosure.
Caution
Ensure that you do not damage any of the CPU module components by
exerting pressure on them.
c. Press the CPU module at the two positions marked
push
. The spring
clips push the standoff pillars into the keyhole cutouts that secure the
CPU module in position. See Figure 3–12.
15. Install the DSSI daughter card onto the CPU module (see Figure 3–13).
Align the card on the standoffs so that it is positioned above the CPU
module connector, then gently seat it onto the connector and the standoffs.
3–18 Upgrading the VAX 4000 Model 100A System