If you have a warranty or maintenance agreement with IBM, know the details that must be supplied when you call for support.
Have the phone number of the support center available. When you call support, provide the machine type (always 2076) and the serial number of the enclosure that has the problem. If the problem does not relate to a specific enclosure, provide the control enclosure serial number. The serial numbers are on the labels on the enclosures.
Support personnel also ask for your customer number, machine location, contact details, and the details of the problem.