Juniper 2320 - No CPU, Memory, Temp dials

Juniper 2320 - No CPU, Memory, Temp dials

Can you please explain how I can fix this?
 
I've seen a couple of other posts, but support seem to fix this without any explaination - it would be helpful to post the fix I think.
 
Either way, just happy if I can get this solved.
 
Ta

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