Help With Cpu Ratio

Hi, I need help, my board is Asrock G41M-Vs3 and i cant change cpu ratio, i mean i can change it but if i so, the computer shutsdown after minutes, if i use asrock oc tuner it says the cpu is half the speed it can go, 1200Mhz and the processor can go to 2200Mhz, Is a Pentium dual core E2200, Win 8.1 64Bits, i tried change it on other windows but or it shutdown, or appears bsod, all drivers are installed and i dont know what to do, btw i have 4GB ram, they are Hynix DDR3 1333 but they work at 800Mhz right know, i cant change that too, the cpu ratio, i can low it, and nothing bad happens (Just get more slower) but if i change it up the pc shutdown, also if i change cpu frequency on bios, the pc dont boot, and i have to remove the cmos battery, i dont know if something of voltage or what, i dont have graphic card, just onboar...
I tried sending message to Asrock support but i dont get any answer, just an automated reply, if you help me on this forum i will be very granted.

Overclocking is contingent on several factors:

1. The hardware - is overclocking supported on your board/CPU (if you are
crashing when you try to increase the multiplier then it does)
2. Temperatures - If your cooling is inadequate overclocking won't work very
well, if at all.
3. Silicon lottery - How well your CPU itself handles the overclock, this can
vary greatly.

Your system showing 1200mhz is likely only because of low load at the time you
are checking, windows dynamically changes the frequency of your CPU depending
on how much load there is, low load, lower frequency and voltage = lower power
consumption. AS RLGL said, get CPUZ, it will tell you what your CPU is set to.

As for CPU Ratio, that is simply your CPU base clock vs your RAM base clock.
If your CPU is set to 2200mhz and that is 100 x 22 and your RAM is set to 800mhz
8 x 100 then your CPU ratio is 1:1, this is a good ratio and avoids bottlenecks.

By the sound of it, you need to google overclocking how to guides and explanations.
Before you start randomly changing settings, do a bit of research. What I have
mentioned here is just the very tip of the iceberg of what can be a very enjoyable
and rewarding past time

First: your board is from 2010 which is getting a bit old even if you bought it new so OC is an issue (boards do not last forever and OC makes them fail faster). Next: Why are you using OC overclock app ?
You should run Hardware Monitor from CPUZ to check your clocks, temps etc. It is free and will tell you what is real. Expect low cpu speed if you are not running something that requires a lot of CPU power. Let it run a bit and and look at the MAX cpu and see if it is not 2200.

sShut down issues are usually caused by the OS