Installing an expansion unit
Use these instructions to install an expansion unit or for the topmost blade server in a scalable blade complex.
Attention
You cannot insert the blade server into the BladeCenter chassis until the cover is installed and closed. Do not attempt to override this protection.
Statement 21
![Graphic illustrating how to install an expansion unit](dw1it157.jpg)
To install and close the blade server cover, complete the following steps:
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