Intel-r- 82801gb Gr -ich7 Family- Lpc Interface Controller - 27b8 [top] Official

This is the (27B8). In PCI (Peripheral Component Interconnect) configuration space, every device has a unique Vendor ID (8086 for Intel) and Device ID. 27B8 specifically identifies the LPC Interface Controller for the 82801GB/GR ICH7. The operating system uses this hex code to load the correct driver ( msisadrv.sys on Windows).