Hello crevitz,
The voltage, you can leave that where it is for now, your getting more than enough juice, if you start to get issues then you can turn it up, (increase slowly), the max voltage you should go to is 1.40V, if your going to 2.6Ghz, you should not have to go to the max voltage setting, (more volts more heat). The max temp you can run at is 55-69C, (why dont they just say 69C),
Found this, it's for your CPU, you can see at 2.6Ghz you only need 1.3V, yours is showing the default setting of 1.35V, you should get to your 2.6Ghz without any trouble or with too much heat looking at the temp's your getting now, if it was me i would stop at 2.6Ghz, anything more and it will eventualy impact on the life of the CPU. When you get to 2.6Ghz post your results, one last thing, dont be tempted to follow the chart to the end, they had some serious cooling. Good luck.
