I don't understand it. While I haven't been wholly unsuccessful overclocking as my Athlon XP 2100 running at 2.2Ghz proves I've had, upping the voltage has done nothing to improve stability when trying to overclock higher. I have a watercooled rig so heat is not the issue. I've experienced similar issue with the northbridge. My Epox 8RD3A+ can reach approximately 220mhz and still be stable enough to not crash when running prime95. Upping the voltage for my nortbridge from 1.6 to 1.8 did nothing to help. Has anyone else had a similar experience where upping the voltage has had no positive effect?