Going forward, it would seem that all new Intel devices do not support undervolting. You can read Intel's response and the details of the CVE-2019-11157 vulnerability here. Intel has since addressed the exploit by allowing OEMs to disable undervolting via a firmware update.
According to Intel, all of its desktop and mobile processors from 6th generation Core processors onwards are affected, as are Core X-series and recent Xeon E chips. In summary, Plundervolt exploits Intel Software Guard Extensions (SGX), which is a set of instruction codes that undervolting programs like Throttlestop and XTU use to manipulate CPU voltages. You can read the research team's findings in its research paper, which can be found here. There is no one catch-all here, but the reasoning behind disabling undervolting is Plundervolt, an exploit discovered by the University of Birmingham. While Dell has warned that undervolting can void warranties, Intel and some OEMs have gone a step further and have disabled undervolting altogether. Two of the most popular undervolting programs are Intel Extreme Tuning Utility (XTU) and Throttlestop, the differences between which you can read in our guides to using the programs. Please take a look at the following link with more information about the Intel® Turbo Boost Frequency:It has been a few years since we published guides on undervolting, the act of restricting CPU voltages to reduce temperatures and improve battery life. You may want to check with your laptop manufacturer for any additional settings in BIOS or even make sure that the BIOS is up to date.
However, based on the results we can see that the Max Turbo Frequency is working as the processor exceeds the base frequency under the tests. If the system does not meet these requirements, or the workload is not demanding, then the processor might not reach the Max Turbo Frequency, in this case, 5.00Ghz. When talking about that feature there are several things that we need to take into consideration, the processor must be working in the power, temperature, and specification limits of the thermal design power. Thank you for posting on the Intel® communities.Īfter checking the thread I understand that your laptop is not reaching the Max Turbo Frequency that your processor supports.
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