Using the mib browser over this devices I can get the data for the CPU utilization but when I go to the device and then to Monitors and test monitor it fails to get the data and going to Graph show me: Data not available.

In system performance I can see the errors for that monitor and the Failure reason : There is no such instance in this MIB.

I used the mib browser application to assure upload the correct mibs (there were dependencies so I was adding the mibs the application request).  

I am attaching screenshots.