Instruction manual

Page 28 Chapter Six
Eagle 250 Upgrade Instructions, Rev. A00
INSTALLING THE NEW REAR PANEL AND AM-138-10 (NEW STYLE
CHASSIS)
If you have the old style chassis, you should have already performed this function in the previous section.
Skip ahead to the next section.
You will be removing the entire rear panel assembly in this section and replacing it with the new panel
contained in your upgrade kit.
1. Carefully position the computer chassis on its side to facilitate the rear panel removal.
2. Remove the four screws attaching the power supply to the rear panel and carefully lower the
power supply to rest on the work surface. You’ll be reinstalling it to the new rear panel in the
next few steps.
3. Remove any other connectors already attached to the rear panel. You will need to re-install these
once the new rear panel is assembled to the chassis.
4. Remove the three screws and nuts attaching the rear panel to the chassis bottom.
5. Remove the three screws and nuts attaching the rear panel to the chassis top. This should allow
you to completely remove the old rear panel.
6. Install the new rear panel to the chassis using the same six screws and nuts you just removed in
steps 3 and 4. Make sure the rear panel is oriented so that the power supply mounts toward the
top of the chassis when it is reoriented to its normal operating position. Figure 6-5 shows the
correct orientation for the new style chassis.
7. Re-attach the power supply to the new rear panel using the four screws removed in step 2 above.
8. Reinstall the rear panel connectors, removed in step 3, to the new rear panel. Figure 6-5 shows
the position of the standard I/O connectors.
9. Reinstall the CPU mounting plate, which now has the AM-138-10 and rear sub-panel attached.
First slide the connector end of the AM-138-10 into place in the rear panel. Then, move the other
end into the proper orientation and press down over the small locating bumps in the chassis
bottom. You may have to rock the chassis top slightly forward or back to lock the locating
bumps in place, with the mounting plate flush against the chassis bottom. Once the plate is
placed properly, install its two mounting screws.
10. Attach the AM-138-10 rear sub-panel to the back panel using three screws.
11. From the outside of the back panel, install the adhesive backed rectangular cover plate contained
in the upgrade kit over the 15-pin connector hole in the new rear sub-panel next to the Parallel 0
connector.
12. Install cover plates over any connector mounting holes that will not be used to mount connectors.
The appropriate filler plates should either be obtained from the old rear panel or be provided in
your upgrade kit.