I am sorry to hear you are having problems but let me help you with this.
The turbo Boost is a feature that is enabled automatically based on internal algorithms and also depends on other factors such as temperature, work load, etc…
I recommend you updating the graphics driver for your system by downloading it at the following link:
Besides installing the driver provided before, another good step is to update the bios and the Management Engine drivers provided by the computer manufacture.
From our side, we have a software called Intel® Processor diagnostic Tool that diagnoses every internal component inside the processor and will generate the results showing if the product passed or not the test. You can use it to know the state of the processor and it can be downloaded at the following link:
32 bit OS:
64 Bit Os:
I also noticed that your computer comes with the switchable graphics technology which means that it has a NVidia Graphics card so in the case that you are still having problems, I recommend you downloading the graphics driver provided by the manufacture or contacting them directly for further diagnoses or replacement if necessary.