The Device Manager has yellow exclamation on other devices.

The Device Manager has yellow exclamation on other devices. Peripheral unknown bus controller universal series (usb) 1) 2 SM bus controller) 3). No driver installed. No driver found on driver updates. Not causing no problem but I don't know what could be the devices.

Thia article gives some indications - http://techforcommoners.blogspot.co.uk/2009/10/how-to-identify-unknown-devices-in.html its worth a read to see if it helps.

Basically, it starts by looking for the hardware id in Device Manager and it enter the PCIDatabase to see if it can find all matches. It is sometimes useful in such cases.

Another place to look is 'information system' (enter 'system info' (without the quotes) as the research) and look in there for pointers, esp in "components - peripheral problem."

Tags: Windows

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