TJReed,
There are far too many hardware and software variables to judge your temperatures based upon any games, however, low to mid 50's is far from being a concern.
Since everyone tests their rigs using X stress software at Y Ambient temperatures with Z measuring utilities resulting in CPU or Package or Core temperatures, it's impossible to compare apples to apples. This is why processor temperatures are so confusing.
Applications, rendering, encoding and gaming are partial workloads with fluctuating temperatures which aren't suitable for thermal testing or comparing temperatures, but they're great for endless debate. Add a graphics card that recirculates heat into your case, and your perspective is lost among all the variables.
The only way to make sense of your temperatures is to test your rig using a methodology that reduces the variables to the lowest common denominators.
Prime95 Small FFT's is the standard for CPU thermal testing, because it's a
steady-state 100% workload. This is the test that Real Temp uses to test sensors. Version 26.6 is well suited to all Core i and Core 2 variants.
Please download
Prime95 version 26.6 -
http://windows-downloads-center.blogspot.com/2011/04/prime95-266.html
Do NOT run any later version you may already have, such as 28.5.
Run only Small FFT’s for 10 minutes.
Use Real Temp to measure your Core temperatures, as it was developed specifically for Intel processors: Real Temp - http://www.techpowerup.com/downloads/2089/real-temp-3-70/
At 22C Standard Ambient, here's the typical operating range for Core temperature:
80C
Hot
70C
Warm (Heavy Load)
60C
Norm
50C
Norm (Medium Load)
40C
Norm
30C
Cool (Idle)
Your highest temperatures will occur during stability tests. Temperatures are lower during real-world everyday workloads such as processor intensive applications or gaming.
Since you're not overclocked and have a decent mid-range air cooler, and unless your ambient temperature is unusually high, your Core temperatures at 100% workload with Prime95 v26.6 Small FFT's should test well within the range shown above.
If you'd like to get a clear understanding of your processor temperatures, then please read this Tom’s Sticky:
Intel Temperature Guide -
http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html
Thanks,
CT