Hi. I recently got a graphics card (GTX 550 TI) and have been monitoring my computer with hwmonitor and CPU Z programs and noticed that while playing The Witcher 2, the temperatures on my cores go as high up as 99C. Is that okay? Here are my specs:
First off 99 degrees Celsius is a very high temp. to be running at. Thats 210.2 degrees Fahrenheit. As a comparison, water boils at 100 degrees Celsius. To fix this, look into getting a better cooling solution. Either get a better CPU fan or I would recommend going with a liquid cooler just to be safe. As for the speed and multiplier changes, these are usually normal changes but, they should become more stable once you get a better cooling solution.
Hope this helps,
Seems to me like if you updated your graphics card, and all of a sudden your cpu started running hot. You probably knocked the heatsink out of whack a little, or maybe you didn't game before? So you weren't able to really notice the effect.
Before going and buying new stuff remove your heatsink + clean off old thermal paste, and then put it back on making sure to properly seat it (of course apply thermal paste also). Even with stock heatsink you shouldn't be hitting the 90c.
Also you need to run some time of stress test. Prime 95 is good enough to get a decent reading on your loads.