The ATI Silencer 5 lowered temperature values by 20% and with far less noise (inaudible) than the original cooling system. The only thing that we can think of as a negative, is that it requires a second slot on the motherboard, adjacent to the graphics card (it doesn't actually use the PCI slot, it simply resides over the slot). The fan costs €20, which is a very low price. We highly recommend it.