Well I decided to push my Athlon 64 last night. And i was shocked to see the results. I have Athlon 64 3200+ S939 Motherboard along with Asus A8V Deluxe motherboard. And I was able to push it to 2.55Ghz with no problems. This is with stock voltages. And this also works at 1.375V which is less than rated 1.4V for this winchester. This overclock is with my DDR333 Hynix chips. When I replace it with GEIL PC4000 i am sure this processor will go more.