no it's not, but it's ok. Most memory modules aren't as bad as some would say. What factors in the most is how well they overclock (or handle when CPU is overclocked* 'cause it is affected by the FSB).
If you don't overclock, you will be fine & dandy. If you do decide to overclock, just move your FSB (multiplyer to be exact) to only 139 & vuala, you have turned your 1600+ into a 1700+ (but you will need better cooling & up your voltage core a little).
In anycase, your CPU temp is fine & Arctic Silver 3 costs only around $6 for a seringe enough for a few applications.