62 Installing System OptionsInstalling a DRAC/MC Module1 Ensure that the DRAC/MC module release lever is fully extended. See Figure 3-4.2 Slide the module into the chassis until it is fully seated.3 Close the release lever until it snaps securely into place.4 Reconnect the cables that were attached to the module.Figure 3-4. Removing and Installing a DRAC/MC ModuleImportant I/O Configuration ConsiderationsEnsure that you read the DRAC/MC’s readme.txt file. It contains updated information,including system indicator behavior in certain conditions.CAUTION: Data loss can result if you perform certain actions on a system in which the I/O bays havenot been configured correctly. Specifically, bay 2 should have an I/O module installed only if a moduleof the same fabric type is present in bay 1, and bay 4 should have an I/O module installed only if amodule of the same fabric type is present in bay 3. Except in these cases (or in a case where youtemporarily need to swap a failed I/O module in bay 1 or 3), bays 2 and 4 should be unoccupied.Unless your system is configured according to these guidelines, do not perform any of the followingactions:• Upgrade DRAC/MC firmware• Issue a software reset command for a DRAC/MC, such as racadm racreset1 release tab 2 release lever 3 DRAC/MC module2 31