I need quick (yes / no) answers for simple questions

[Keth]

I started overclocking for my first time week ago. I managed to get my i7 to around 3.72GHz stable in full stress test (2 hours).

My questions are:

1. Does CPU temperature gets higher when I increase the CPU voltage?
2. Does CPU temperature gets higher when I increase the BCLK?
3. Does 19 (multipler) x 200 (bclk) makes any difference to 20 x 190 (not considering RAM Hz)? If so, what's the difference?
4. If the system is stable for hours of stress, does it mean it will be stable later on? (like in gaming, rendering, etc)
5. Why my PC sometimes doesn't start when I restart? Sometimes I need to restart it twice. Does it has to do anything with voltages or overclocking?

Thank you in advance,
~kwketh

 

[Keth]

Thank you guys for quick answers. I appreciate your time.

It's has been few days since I started overclocking and I see I already learned lots of things.

Thank you again,
~Keth