How to Turbo Boost CPU to 4.00 GHz ? Acer Predator Helios 300

The i7-8750H will only run at 4.1GHz if 1-2 cores are active. At 3-4 cores active, max speed is 4.0GHz. At 5-6 cores active, max speed is 3.9GHz.

Your 2.2GHz rating is the base clock speed without Turbo Boost. In order to see Turbo activated you need to be running a task or process that works the CPU. Your screen shot is only ~10% utilization and the computer slows the CPU to manage heat and power consumption. Ideally, you want it idling at a lower frequency than the maximum possible speed and for it to ramp up quickly when a task starts.

All of this is possible to control with a free program called Throttlestop if you want to try. Otherwise, let Windows handle it.

With the 2019 Predator Helios 300 (PH315-52-75DE) with i7-9750H (base 2.6GHz TDP 45 W with turbo 4.5GHz) and RTX 2060. Using HWinfo64 as monitoring program and Cinebench R15 but prefer R20 to stress test the CPU in Multi-core test.  Both HWinfo64 and Cinebench R20 are free to download. In HWinfo64 find PL1 and PL2 under CPU section. Go to PREDATOR SENSE and place Fan Speed in Auto and then GPU Overclock profile to Extreme. Run Cinebench R20  multi-core without being in Full Screen. PL1 your TDP should read 45 W then as the test is running get near 56 W.  Your CPU Cores should reach 3.8 to 3.9GHz.  CPU core temperatures will run 86c to 90c, sometime may spike temporarily to 93c and possibly Thermal Throttle for a few seconds. The Fans will kick in and be loud which the CPU temp should drop below 90c.  GPU temperature normally stays around 74c to 80c or at least always 10c less than the CPU. Prior to the Cinebench test and CPU is idle as you are not running any programs or have the browser open, if your CPU temperature is 37c to 47c, you are okay. However, if above 55c while idle that would indicate you may need to access the motherboard by removing bottom chassis and the copper heat sink pipe assembly and remove, clean and reapply Thermal compound to the CPU and GPU. Best to use Arctic MX-4 or Kryonaut thermal paste and spread paper thin layer across top of the CPU and GPU. Do Not use Thermal Pads. Caution: When disassembling and removing bottom cover please have the  AC Adapter unplugged and Laptop turned off as you want to prevent damaging your expensive laptop. If you do not know how to do any of this, there are plenty of You Tube videos for reference or consult a friend, family member or co-worker who has technical and computer experience. It should not take more than 15 minutes but some of us are over precautious and in no rush so maybe no longer than 30 minutes. It is rather a simple process.

tobimaru said:

The i7-8750H will only run at 4.1GHz if 1-2 cores are active. At 3-4 cores active, max speed is 4.0GHz. At 5-6 cores active, max speed is 3.9GHz.

Your 2.2GHz rating is the base clock speed without Turbo Boost. In order to see Turbo activated you need to be running a task or process that works the CPU. Your screen shot is only ~10% utilization and the computer slows the CPU to manage heat and power consumption. Ideally, you want it idling at a lower frequency than the maximum possible speed and for it to ramp up quickly when a task starts.

All of this is possible to control with a free program called Throttlestop if you want to try. Otherwise, let Windows handle it.

I have the same issue but here we can see its under 100% utilization it still never goes above the base speed.i have not done anything to the system it is as default as it can be.i am very confused like do i have to enable something in the bios to enable turbo(i did try going into the bios there was no option for enabling or disabling the turbo) cinebench R15 give a score of 660 which is like half of normal score for this processor.please help!!