Some people were asking about temperatures in a Precision 690. Here are my typical idle temps as shown on Speedfan. This system has a 1KW power supply, memory risers, and 2 Xeon 5160's at 3.00GHz. I use Speedfan to keep the fans under control as they tend to get very noisy. I don't know exactly where the system's temperature sensors actually are. If anyone knows, please let me know.