Here's an update for you drexeus, I ran my 955 at 3.6 GHz at 1.3715 V for 13 hours on Prime 95 while I went to work. Here are the results and a screenshot for any non-believers:
Phenom II X4 955 @ 3.6 GHz (1.3715 V, set manually in the BIOS)
Dual Sapphire 5750 Vapor-X @ 870/1300 MHz
Asus M4A89GTD PRO/USB3
4GB (2x 2 GB) G.Skill 1600 MHz Ripjaws @ 7-8-7-24 (1.65 V)
Cooler Master Vortex Plus
Assortment of 4 120mm fans, 2 on front, 2 on side
90mm exhaust fan
Running Prime95 for 13 hours, I am getting the following temps:
CPU @ 57 C
Motherboard @ 45 C
And after letting it idle for 10 minutes with Google Chrome open to type this, I was getting the following temps:
CPU @ 34 C
Motherboard @ 32 C