The NM-IMB8 are offset LGA1851 mounting bars for the NH-D15 G2. By offsetting the heatsink 3.7mm towards the north and 2mm towards the east side of the socket, more pressure is applied right above the hotspot of Intel® 24- or 20-core LGA1851 CPUs, such as the Core® Ultra 9 285K or Core Ultra 7 265K. This improved contact exactly at the processor’s hotspot can reduce CPU temperatures by up to 3°C with HBC coolers and up to 1°C with the standard version (medium base convexity) of the NH-D15 G2. Since the standard version typically performs around 2°C better than the HBC version when both are used without offset, the first remains the recommended choice for LGA1851 as it achieves the best temperatures overall, both with and without offset mounting bars. Replacing the standard mounting bars and re-using the original spacers and screws, the NM-IMB8 are a simple yet highly efficient measure for fine-tuning the thermal performance of NH-D15 G2 CPU coolers on high core count LGA1851 processors.