Thu Aug 16, 2012 9:04 am by lax
The guide with pictures showing how to set your minimum CPU to 100% power on high performance is generally all you need by design of Windows and your CPU. Even 5-8 years ago they tied this technology to the Power Profile selected in Windows and selecting High Performance would be enough to disable the power saving mode. I would suggest double-checking which Power Profile is currently active in Windows, definitely select "High Performance" (exactly those words, for English anyway) and make sure the minimum processor power setting is 100%.
Anyway if you check those things and it was already set to High Performance, and High Performance is not misconfigured, then the only other suggestion I have involves checking your BIOS settings. BIOS is the OS built into your motherboard that helps configure CPU features, RAM voltage and clocking, etc. How to get into BIOS is different between different motherboard manufacturers, what it looks like and how to operate it is different, and what the setting is called could also be different. So I can't tell you exactly what to look for, but you would reboot your PC and right at the start you probably press F1 or Delete to get into BIOS. If your motherboard has a splash screen you can generally press Esc or Tab to hide it to find out how to get into BIOS. Once you're in BIOS, look for CPU power settings, and try not to change anything you are unsure of because you can stop things from working.

(I do recommend double checking the settings in Windows first!)