
MSI has released new firmware for Intel 600- and 700-series motherboards, which allows you to turn off the CEP (Current Excursion Protection) function. According to the vendor's findings, disabling CEP can make your Intel 14th Generation Raptor Lake Refresh non-K processor run cooler without compromising performance.
Some users run their processors at stock, while others overclock them. Others like to undervolt their processors to make them run cooler while also saving some energy. However, MSI discovered that undervolting Raptor Lake Refresh non-K chips harms performance. The main culprit is the CEP. CEP is a protection function that impedes instability when insufficient voltage goes to the processor. When you undervolt Raptor Lake Refresh non-K SKUs, this triggers CEP, imposing a performance penalty on the chip through throttling.