IBM continually updates the support website with tips and techniques that you can use to solve any problems that you might be having with the BladeCenter HX5 blade server.
To find any service bulletins that are available for the BladeCenter HX5, go to the BladeCenter support search website and search for the terms http://www.ibm.com/search/csass/search?sn=mh&q=7872%20retain%20tip&lang=en&cc=us&en=utf.