Specifications

4.5 Opening the System Cabinet
This section describes how to open the applicationDEC 400xP system cabinet
to gain access to the internal components. Refer to Figure 4–1 and Table 4–2.
4.5.1 Removing the Top Cover and Side Panels
1. Shut the system down and unplug the power cord (Section 4.4).
2. Unlock the top cover by inserting the cabinet key and turning it fully to the
left. This will pull the top cover toward the rear of the cabinet. Remove
the cabinet key.
3. Push the cover toward the rear to free the front locking tabs. Remove the
top cover by lifting it straight up.
4. Remove the side panels by lifting them up and away from the cabinet. The
two side panels are identical.
Reverse the above procedure to replace the top cover and side panels.
Note
An arrow on the underside of the top cover points to the front.
4.5.2 Removing the Card Cage Cover
1. Shut the system down and unplug the power cord (Section 4.4).
2. Remove the top cover and left side panel using the procedure in
Section 4.5.1.
3. Loosen the two screws on the right side of the card cage cover. Do not
remove the screws.
4. Slide the cover to the right to clear the keyhole and remove the cover.
Reverse the above procedure to replace the card cage cover.
FRU Removal and Replacement 4–5