VEN_1022&DEV_780B Driver (AMD SMBus) for Windows 7 — Download
After installing Windows 7, Device Manager still showed an unknown device with the ID PCI\VEN_1022&DEV_780B&REV_16.
In short: it’s the SMBus controller in an AMD chipset (VEN_1022 is AMD). You need the SMBus driver — download it, unpack it and point the driver install to the folder.
What this device is
As usual, look it up by the hardware ID:
VEN_1022— the vendor, AMD;DEV_780B— the SMBus controller in the AMD chipset (southbridge / FCH).
SMBus is a service bus on the motherboard that the system uses to talk to temperature sensors, memory modules and other chips. The PC works without the driver, but Device Manager shows an unknown device.
How to install the driver
- Download the SMBus driver and unpack the zip archive.
- Device Manager → right-click the unknown device → Update Driver Software → Browse my computer for driver software.
- Point it to the unpacked driver folder (with “Include subfolders” ticked).
The driver installs successfully and the device disappears from the unknown list.
Readers say other sites give broken links or huge driver packs, while this archive did the job. If your motherboard maker’s site has an AMD chipset driver package for Windows 7, you can install that too — the SMBus driver is part of it.