Is you server says CS24-TY on the Dell badge (top, right side of the server)?
If so, while it look, taste, smell, sounds like a C1100 =D It is a special build.
Most of us having issue with "C1100" ended up with those.
And, I think, there is no support for second hand special built.
... Now how the hell I got 3B22 to work on one of my CS24-TY =D