It is almost square. It did have a cooler with a thermal pad on it, but I cleaned the old TIM off with acetone (nail polish remover) and a lint free cloth. I would like to overclock this since the equipment was given to me and I have nothing to lose. Unfortunately, all I have are older hard drives that may not even be Ultra 66 speed. This isn't a big concern as I am going to use this for a SETI cruncher and not as a primary computer. I will use the integrated nForce video as well. The case I am using is big with exceptional cooling, and I will be using a 400 Watt Enermax PSU, so voltages should not be a problem either. Any additional comments/guidance is welcome.