The driver refers to the DRAM (Dynamic Random Access Memory) Controller component associated with (also known as Sandy Bridge). This driver is responsible for controlling memory management and how the CPU interacts with system RAM (e.g., read/write operations, speed control, memory timings).

While the DRAM Controller itself is typically integrated into the CPU (as part of the chipset), the driver ensures that the operating system can correctly manage the interaction between the processor and the system's RAM.