As advised in another thread I have downloaded and installed the Intel Chipset Drivers
Update but the nothing happened to the unknown device I see in Device Manager. The installation completes instantly and I see that this indicates the drivers in the update are not needed by my system.
I am running Widows 7 Professional and the motherboard details show Intel 915P and Intel ICHR6 chipsets. The unknown device appears under Other Devices and in the Properties the Hardware IDs are listed as:
I would be grateful if anyone can point me to drivers for this device. However to be completely upfront I am not aware of the existence of a device in my system that is not working or available to me. So I could live with the situation!