The larger cooler with a fan is all-copper, while the other smaller heatsinks are all-aluminum, but have a copper colored look. So if you do use all of these in the same system, they will match. As for where to use the larger and obviously more effecient copper cooler that depends on your primary needs. If you want overclock your video card then you may want to use it for that. On the other hand, if you wish to do some heavy overclocking with your cpu then I suggest using it as the chipset cooler. If you will not overclock or even do some light overclocking then the larger of the all-aluminum heatsinks will do just fine for most current motherboards. I tried the larger aluminum heatsink in my AK-31 and there were no troubles overclocking to the max my ram permits, which is at 140fsb.

Installing either one you use is very easy. In fact the hardest part is first removing your old chipset heatsink/fan or your video card cooling. If you do remove your chipset cooling I do strongly suggest you first remove the motherboard from the case first to help prevent potential damage to the sensitive motherboard circuits. Then how you attach the new cooling depends on your motherboard, if you use the larger copper cooler because as is the case with the Shuttle AK-31 you cannot use the pins to attach it to the motherboard thanks the too-close proximity of one capacitors (grrr) . Instead you will need to use either thermal epoxy or one of the included thermal pads (the largest one) which do stick well enough even for the heavier copper cooler as you can see below. The large AX-7 is the installed cpu heatsink in the picture.

The bottom~

This is one very well put-together kit, it has all that you will need to cool your motherboard chipset and your video card and does it all with cool looks while providing superior performance. Even includes a small tube of silicon grease along with the thermal pads and even a 3 to 4 pin adapter (not that you really need it). Again, the larger unit with the fan is all-copper while the smaller heatsinks are aluminum, but they still do a fine job at cooling. And ar also great for cooling the south bridge.

Best I could tell by placing a thermal sensor on the chipset, when using the larger aluminum vantec heatsink (using no fan) the temp stayed about the same as when using the previous dinky sink Shuttle includes and thats with me using an old fan off a 486. Now when using the copper heatsink with the fan, temps were 4-11 degrees cooler! *From idle temp to running the prime95 cpu torture test for 45 minutes.

Mucho thanks goes out to those crazy but very cool and nice guys at CrazyPC for supplying us this fine kit for review. Direct Link to the $13.95 Vantec Iceberq CCB-A1C Chipset Cooling Kit.