> Thank You for the help. I called AMD tech help this morning. He happen to have a Gigabyte motherboard handy. Yes, it does take > quite abit of pressure to lower the lock handle and lock it. I hope they mention this in the next cpu manual revision. I really like AMD > tech dept.. Harold, Be prepared to be surprised at the amount of force required to get the heat-sink spring into place ! Don't try it with the mobo. in the case, place the mobo on something reasonably soft, firm and flat (cardboard?) - get a wide blade screwdriver, grip it with both hands, position your upper body directly over the clip and gently apply weight rather than force, - and don't let the screwdriver slip. I mention this because I was so surprised that I stopped trying, and asked the Lists' advice. Hopefully, the above is a summary of the help offered by Jun Quian and several others whose names have escaped me, - it worked for me and I'm extremely grateful. Kevin, New Zealand. PCBUILD's List Owners: Bob Wright<[log in to unmask]> Drew Dunn<[log in to unmask]>