I am Not a Geek dot com has posted a Thermaltake Volcano 7 heatsink review
This is Thermaltake's largest Socket A heatsink. Although it has an 80mmx80mm, they have made the base a little smaller so it will fit more motherboards. The base of the heatsink is only 70mm x 68mm, giving you a little more clearance around capacitors, then heatsinks like the MC462 or PAL8045. There is a metal plate on each side of the Volcano 7 that helps funnel the air directly onto the heatsink, so the airflow of the larger 80mmx80mm fan is not wasted.Read more