Ok, having OC'd slowly through the clock speeds - testing at every stage for prime stability, Iv discovered a voltage problem with my board.
At 2.2ghz (11x200) @ 1.6v mbm5 and cpuz read voltages between 1.58 & 1.6v - but the OC was prime stable for 24hours
At 2.3ghz (11.5x200) @ 1.7v I got readings between 1.65 & 1.7v - but was prime stable for 24 hours
However -
At 2.4ghz (12x200) @ 1.8v I get readings between 1.67 & 1.8v! and at 100% load my pc just shuts down and makes a 2 tone siren noise (which refering to the beep code post suggests a "heat problem or out of specification voltage"). However my cpu is not getting that hot at all - why is the voltage so inconsistent? and what can i do about it?
At 2.2ghz (11x200) @ 1.6v mbm5 and cpuz read voltages between 1.58 & 1.6v - but the OC was prime stable for 24hours
At 2.3ghz (11.5x200) @ 1.7v I got readings between 1.65 & 1.7v - but was prime stable for 24 hours
However -
At 2.4ghz (12x200) @ 1.8v I get readings between 1.67 & 1.8v! and at 100% load my pc just shuts down and makes a 2 tone siren noise (which refering to the beep code post suggests a "heat problem or out of specification voltage"). However my cpu is not getting that hot at all - why is the voltage so inconsistent? and what can i do about it?