OCIA.net checks out the Arctic-Cooling Super Silent 4ProL heatsink in their latest review. Below is a direct quote from the review:
"Installtion of the 4ProL was one of the easiest I've ever done, even easier than Intel's retail P4 heatsink, which has been praised by many, including myself. Installation of the 4ProL was as easy as adding some thermal compound to the processor, placing the heatsink between the retention bracket, and pushing the 4 clips onto the 4 retention posts. The clips only require a little pressure to seat them into position, and makes the heatsink seat firmly to the processor, without using excessive pressure."
"Installtion of the 4ProL was one of the easiest I've ever done, even easier than Intel's retail P4 heatsink, which has been praised by many, including myself. Installation of the 4ProL was as easy as adding some thermal compound to the processor, placing the heatsink between the retention bracket, and pushing the 4 clips onto the 4 retention posts. The clips only require a little pressure to seat them into position, and makes the heatsink seat firmly to the processor, without using excessive pressure."