From Dell SupportAssist, click Hardware Checkup, CPU, and then CPU stress test. Using the preinstalled Dell SupportAssist software, run the CPU stress test.Change the Active System Theme - Overclock to Overclock 02 (if applicable).Set the Active System Theme - Thermal as Performance Mode.Configure the Alienware Command Center.Intel Processor i5-8300H in performance mode Intel Processor i7-8750H in performance mode Intel Processor i9-8950HK in Overclocked level 3 mode Performance Mode + Highest Level Overclock (If Applicable) Ensure that the CPU frequency is within the range that is identified in the table below during the first 5 minutes. Launch the Alienware Command Center and go to Fusion and monitor the CPU frequency.When the computer finishes booting, using the preinstalled Dell SupportAssist software, run the CPU stress test.Press the F10 key to save the changes and exit the BIOS.Set the Core Over-Clocking Level to OC LV 3 and then press the Enter key.Change the CPU Performance Mode to Enabled.Go to the Advanced tab and select Performance Options and press the Enter key.

Restart the computer and enter the BIOS by tapping rapidly on the F2 key during POST.

Clear the checkbox next to Enable G-SYNC.

Click Set up G-SYNC in the left side menu.

Note: This step is only applicable on G-SYNC supported models. The alert or warning (text in red) of the high CPU temperature may be seen when the Alienware Command Center (AWCC) measures the temperature. This may happen more frequently when the computer is under a heavy load. There are reports that the CPU temperature on Alienware 13 R3, 15 R3/R4, 17 R4/R5, m15, m15 R2, m15 R3 m17, m17 R2, m17 R3, Area-51m, and Area-51m R2 laptops are reaching high temperatures. High CPU temperatures reported on Alienware laptops

High CPU temperature troubleshooting steps.

High CPU temps reported on Alienware laptops.

Under either a heavy load or running the Alienware Command Center that measures the thermal temperature on these Alienware laptops. The following article provides information about an issue with high CPU temperatures.

Alienware 13 r3 hwinfo fan control