Just ordered VapoChill LS :)

[kitfit1]

But i don't think that 45 nm can last long even with sub zero cooling with over 1.5v .

The clock in my sig, dos'nt bear that statement out. It's been running at 4.75ghz since January, and in fact will now run at 4.8ghz (so the cpu has got better over time).

The main things that kill 45nm's are high VTT voltage and anything other than stock PLL voltage. Mix those with high Vcore, and you have a recipe for death. High Vcore on it's own does not kill 45nm's.

[makaka]

The clock in my sig, dos'nt bear that statement out. It's been running at 4.75ghz since January, and in fact will now run at 4.8ghz (so the cpu has got better over time).

The main things that kill 45nm's are high VTT voltage and anything other than stock PLL voltage. Mix those with high Vcore, and you have a recipe for death. High Vcore on it's own does not kill 45nm's.

by higher i meant 1.6 v + , i already killed 2xE8400 and 1xE8500 with 1.65v for about 1 month each , SS cooled with sub -30c load this why i suggest to stay in 1.5-1.55v as max for 24/7 . I know that each processor handle differently the voltage but it is better to be safe than sorry .

[t800]

by higher i meant 1.6 v + , i already killed 2xE8400 and 1xE8500 with 1.65v for about 1 month each , SS cooled with sub -30c load this why i suggest to stay in 1.5-1.55v as max for 24/7 . I know that each processor handle differently the voltage but it is better to be safe than sorry .

Hmm good to know this, because i have been running my qx with 5.0Ghz at 1.65v at 24/7 for couple days now . I guess is better to tune it 1.5v and lower mhz than kill 700$ cpu :P

[Techie]

My Q6600 B3 was able to run @3,85 Ghz with a stock vapo LS.