Intel has recently addressed a bug in its microcode affecting the boost clock speeds of some of its CPUs, specifically the 13th and 14th generation Core i5, i7, and i9 processors. This issue has led to instability problems in certain games due to non-default BIOS settings used by motherboard suppliers. Intel has issued guidance on the necessary BIOS settings for these CPUs to function properly.
The problem first came to light at the beginning of the year when users of Core i9 13900K and 14900K chips experienced stability issues in games using the Unreal Engine. Epic, the developers of UE, pointed the blame at Intel, who then shifted the responsibility to motherboard vendors for using non-standard power and current settings in the BIOS.
Further investigations revealed that it wasn’t just the Raptor Lake Core i9 chips facing problems, but also Core i7 users and developers working on software stressing the processors. Intel introduced the Intel Basic Profile in a motherboard BIOS update to enforce standard power and current limits and protections, but not all vendors applied it consistently.
Intel’s recent guidance clarifies the necessary BIOS settings for the CPUs to operate within expected limits. While this information has been available in Intel’s data sheets, the technical nature makes it challenging for users to understand. The power limits of Intel CPUs significantly impact their maximum clock speeds, especially when handling multiple threads simultaneously.
To achieve maximum clock speeds, CPUs must stay within temperature, power, and current limits. Intel recommends opting for performance values if supported by the voltage regulator and motherboard design. However, motherboard listings do not explicitly state support for the Performance Power Delivery Profile (PPDP), leading to uncertainty among users.
Intel advises configuring the BIOS with standard values for a more efficient, cooler, and stable PC, even if it means sacrificing some speed. While there may not be a universal solution for all stability issues with Intel’s latest processors, following Intel’s guidelines and setting BIOS to standard values can enhance system stability.
In conclusion, Intel’s clarification on BIOS settings for its CPUs aims to address the instability issues reported by users. By ensuring the correct BIOS configurations, users can expect a more stable and efficient computing experience, even if it comes at the cost of some performance. Moving forward, transparent communication from motherboard vendors regarding support for Intel’s PPDP can aid users in optimizing their systems for stability and performance.
Article Source
https://www.pcgamer.com/hardware/processors/intel-clarifies-what-bios-settings-13th14th-gen-cpus-should-be-used-for-power-and-current/
