The IMC driver for AMD K15 chipset is usually included in the motherboard's chipset driver package. Here are some key points about the driver:
AMD no longer actively updates drivers for the K15 family, but the legacy packages remain available:
If using an APU, run DDU in Safe Mode to completely clean out old display and SMBus storage traces. amd k15 imc chipset drivers
Eliminates the front-side bus bottleneck by connecting the CPU directly to DDR3 or DDR4 RAM.
Safely overclock the NB from the default 2000MHz up to 2200MHz–2400MHz for a direct latency reduction. The IMC driver for AMD K15 chipset is
Before 2003, memory controllers lived on the motherboard’s northbridge chipset. AMD integrated it directly into the CPU die starting with the K8 (Athlon 64). The K15 IMC controls:
Always avoid third-party driver-download websites, which often bundle adware or outdated, modified files. Go to the official page. Scroll to the product selector. Rather than searching for "K15" or "IMC," select Chipsets . Safely overclock the NB from the default 2000MHz
Identify your motherboard model (e.g., ASUS M5A97, Gigabyte GA-970A). Go to the manufacturer's official support website.
Windows (example)