Technical data

3–25
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
8. If you are replacing DIMMs, press down on the DIMM retaining levers at either
end of the DIMM you want to remove.
9. Grasp the DIMM and gently remove it from the DIMM slot.
10. Insert the replacement DIMM straight into the socket and ensure that the notches
in the DIMM align with the tabs in the socket (see Figure 3–5).
11. In a dual-redundant controller configuration, repeat steps 4 through 10, as
appropriate, for the other cache module.
NOTE: In a dual-redundant controller configuration, both cache modules must
contain the same memory configuration.
CAUTION: Make sure you align the cache module in the appropriate
guide rails. If you do not align the module correctly, damage to the
backplane can occur.
12. Insert the cache module into its slot and engage its retaining levers.
13. Connect the ECB cable to the cache module.
14. In a dual-redundant controller configuration, repeat steps 12 and 13, as
appropriate, for the other cache module.
15. Mount the logical units on the host. If you are using a Windows NT platform,
restart the server.
16. Set the subsystem date and time. In single controller configurations, set “this
controller.” In dual-redundant controller configurations, set “this controller,” then
set the “other controller” with the following command:
SET THIS_CONTROLLER TIME= dd-mmm-yyyy:hh:mm:ss
SET OTHER_CONTROLLER TIME= dd-mmm-yyyy:hh:mm:ss
17. Disconnect the PC or terminal from the controller’s maintenance port.