The IBM BladeCenter HS21 Extended Memory blade server is a high-density
blade server that features high-performance Dual-Core and Quad-Core Intel
Xeon processors and expanded memory levels.
Troubleshooting the HS21 extended memory blade server
The Problem Determination and Service Guide contains information
to help you solve problems that might occur in your IBM BladeCenter HS21 extended
memory blade server. It describes the diagnostic tools that come with the
blade server, error codes and suggested actions, and instructions for replacing
failing components.