Lenovo continually updates the Support web site with tips
and techniques that you can use to solve any problems that you might
be having with the components of the Lenovo Flex System Enterprise Chassis
Types 8721 and 8724 system.
To find any service bulletins that are available for these
components, go to the
the Support Portal and
enter the terms
Flex System AND retain. You
can also narrow your search scope by adding machine types for devices
and problem types. For example, to search for all service bulletins
related to memory problems with the
Lenovo Flex System x240 Compute Node, search
for the terms 7162 AND Retain AND memory.