CoolJag 661C P4 & V558A XP Heatsink Review Posted on August 25, 2004 - 20:21 CEST by LSDsmurf Today, we are looking into the two most commonly used coolers; 661C for socket 478 Pentium 4 and V558A for socket 462 AXP provided by CoolJag. Link: Madshrimps