GPU running hot

I recently inherited an old monitor, and decided it to use it as a second monitor for my rig. the only issue was when I looked at HW monitor my gpu was running at 39 degrees. As of right now (I have to second monitor turned off) its running at 29 degrees. is this normal? I have a 7870 ghz from msi.

ya thats normal because it keeps the memory and gpu core at a higher idle speed to run the second monitor thats what happens with me at least