Hello Quick question. I'm soon to upgrade my 2010 i7 27'' with a Samsung 850 SSD. Ive watched the videos and will be setting aside some decent time to ensure this goes well. Seeing as my machine is 6 years old I'm tempted to chuck a replacement 1tb standard drive in at the same time. Is there any downside to this. I've read somewhere about a temp sensor on the original drive and the fans going mental if that drive is replaced. For the small amount extra for a new drive to use as the second it seems silly not to when the machine is open and accessible. Are there any suggestions for a drive to replace the existing 1tb. I will be doing a fresh install so data is really not an issue. Thanks.