Gaming Upgrade

I built my current rig in 2012. At the time I put it together from recommendations from this forum. I'm happy to say that 7 years later I'm still gaming and would like to breathe some new life into my build. Current Setup Component Model CPU Intel i7-3770K CPU (4 x 3.50GHz, Ivy Bridge)...

I have a dell optiplex 760 sff and I'm thinking of buying a gt 1030 (probably pny or gigabyte) but I've heard that some 1030's don't work on legacy BIOS. Is my pc compatible with it?

Are my temps to high? Attached are to gyazo pictures showing my task manager at the time with a few mnor programs running and I was at 54 celcius but close to 60 at times. When I start gaming I am sure it gets much warmer. Is this to hot? Thanks http://gyazo.com/963e06d2d4e509e006969b56e3d36d3d...