Intel Processor Bug Fixed with Microcode Update

Intel's 13th Gen and 14th Gen Core processor models, based on the 8P+16E "Raptor Lake" silicon, were affected by a bug that caused performance and stability to degrade over time due to excessive voltage. This issue was traced back to faulty microcode. In response, Intel extended the warranty for affected processors and released CPU microcode updates bundled into motherboard UEFI firmware updates through PC OEMs and motherboard vendors. The latest microcode update, version 0x12B, has been confirmed to fix the problem. It is important to update your motherboard BIOS to the latest version containing this microcode.

The Verge recently spoke with Intel spokesperson Thomas Hannaford, who explained that the company had identified four scenarios leading to processor degradation and had provided recommendations to prevent this degradation. The latest microcode update addresses all of these scenarios. If a processor has already degraded, the firmware update will not help, and the processor should be replaced under warranty. Intel has extended the warranty to cover all affected processor models, even those purchased initially.

"Yes, we're confirming this is the cause and that it is fixed," said Intel spokesperson Thomas Hannaford in an interview with The Verge.