Upon looking at this unit for the first time, I noticed the trend with many manufacturers in creating extra surface area. Notice the ribbed design on the the outer fins on this unit:
Not sure if this actually helps a whole deal or not, but this is going to be the only place you're going to see this extra ribbed area. The inside fins don't have this type of design:
Aside from that, let's take a look at the basic workings on the Volcano 5. One of the most important elements that I value on any heatsink is the clip design. Thermal Take usually considers the request from many users on a simple clip that works. Definitely something that does not require a jack hammer to put in. The clip on this unit is just 'adequate' to say the least. I say this because it was hard to put on with my bare fingers. After a few minutes of toying with it, I whipped out my small flat headed screw driver and took care of business. The clip itself had no area to push down on! The clip did have a small notch situated in the middle for a flat screwdriver to push down on.
The bottom of the unit has this huge white plastic layer that protects the thermal pad. There's a warning there also, so listen to Thermal Take you newbies! Tear that plastic off before you do anything, plastic is not a thermal interface material! I didn't bother using the thermal pad, using my NextCard VISA I scraped off the black nasty. I found that the flat edge on the credit card is a lot easier to use than a razor. It doesn't scratch the metal as easily also.
The top of the unit has a black piece that the fan rest on. Its locked in by clips that work in conjunction with some of the fins on the heatsink itself. I tried to pry it off, but I don't think it really would show anything significant so I left it there.
I unscrewed the fan to to check what kind it was, or in this example who made it. The fan is attached to that black metal piece by 4 very small screws. You definitely need a small mini-screwdriver to get those out. The fan, according to Thermal Take, has a start up voltage of 7V. This is perfect for the many people who have the 12-5V trick done on their fan/bay buses. This 32CFM fan is from Everflow, which is the same manufacturer that was used on the previous versions of the Volcano.
Here's a side profile shot of the fins. There's a total of 22 fins on the actual heatsink, with a Patent Pending clip running across. You may notice a dip in the middle fins, according to Kenny over at TT this was made to ease the installation of the clip. Guess I learned something new today!