Fan speed increased after upgrading to SSD I just replaced my Macbook Pro's Mid 2012 HDD with a Samsung 850 EVO SSD. The performance is great and I am very happy, but I noticed that the fan seems to run faster. It is not a drastic change, but it is noticeable. I have downloaded iStat Menus, the Exhaust of the fan is 2000 rpm and the Temperature is a bit over 50°. Is that normal and is there any chance I did something wrong while replacing the HDD? 
I am running Yosemite and I did a SMC reset.
Have a look at Controlling the fan speed in Mac models after an SSD upgrade. Extracted from that article:


  
  Download the app “smcFanControl“
  Install smcFanControl into your Applications folder
  Open Automator
  Create “New Application”
  Go to Utilities > “Run Shell Script” and delete the word “Cat”
  Copy the following code into the Shell Script:
  /applications/smcfancontrol.app/Contents/resources/smc -k F1Mx -w 1770
  Test the Shell Script by clicking on “Run” and your fan should stop running at full speed
  Save the application to your SSD as “maxfanadjustment”
  Open System Preferences, go to Users &amp; Groups, the tab for Login Items
  Click the “+” to add a new application and navigate to the Automator file you just created and add it.