By putting the voltage on the RAM a little bit higher, you may reach a better OC. Just like, .1v though. CHANGE THE CPU VOLTAGE AS SOON AS POSSIBLE! YOU WILL KILL THE CHIP!
Kepp the voltage stock, and try to boot from there. When it crashes, raise it a little. But don't go past 1.45v. (.1v past stock) Now, if you get a crash, try raising that RAM voltage ONLY slightly. See if you get in to windows. Shoot for 3.8Ghz. Get back to me with what happens and how far you can get. Also, what are your temps in Celsius?