More silent replacement for P150EM

I am a proud owner of a P150EM (NP9150). Great performance, no issues ever, specs in signature. I am mostly looking for a more silent idle laptop. No real rush, mostly asking out of curiosity.

I recommended my flatmate to get the P650sm which has the GTX970x with good overall specs and I noticed that it is completely silent when idle/browsing/non gaming; however, I found that it is a bit larger than mine (both are 15''). I was wondering if there is a good replacement for mine in terms of (1)...

More silent replacement for P150EM

More silent replacement for P150EM