PCI\VEN_8086&DEV_19AC
SMBus driver
PCI\VEN_8086&DEV_19AC is the Intel Corporation Atom Processor C3000 Series SMBus Contoller - Host, an SMBus device. This is a chipset part that reads memory and sensor data; it only needs the chipset driver to disappear from Other devices. Get it from Windows Update or your PC maker first; the chip maker's own package is on intel.com.
Device details
| Hardware ID | PCI\VEN_8086&DEV_19AC |
|---|---|
| Device name | Atom Processor C3000 Series SMBus Contoller - Host |
| Maker | Intel Corporation (PCI vendor ID 8086) |
| Device type | SMBus |
| Driver guide | Fix SM Bus Controller driver |
| Latest official package | Intel Chipset INF Utility 10.1.20658.8883, January 8, 2026 |
How to install the driver for Atom Processor C3000 Series SMBus Contoller - Host
- Confirm the ID. In Device Manager, right-click the device, open Properties, then Details, and pick Hardware Ids. The first line should start with
PCI\VEN_8086&DEV_19AC. - Try Windows Update. Settings, Windows Update, Advanced options, Optional updates. Chipset drivers are sometimes offered here.
- Check your PC maker. Enter your model or serial number on its support site and look under Chipset.
- Use the chip maker's package. Intel Chipset INF Utility on intel.com. Our fix sm bus controller driver guide explains which package fits.
- Restart and check. Device Manager should list it under System devices with no yellow mark.
Other Intel smbus IDs
VEN_8086&DEV_0C5DAtom Processor S1200 SMBus Controller 4VEN_8086&DEV_0C5EAtom Processor S1200 SMBus Controller 5VEN_8086&DEV_0F12Atom Processor E3800/CE2700 Series SMBus ControllerVEN_8086&DEV_18DFAtom Processor P5xxx Series SMBus ControllerVEN_8086&DEV_19DFAtom Processor C3000 Series SMBus controllerVEN_8086&DEV_1BC9C740 Series (Emmitsburg) Chipsets SMBusVEN_8086&DEV_1C226 Series/C200 Series Chipset Family SMBus ControllerVEN_8086&DEV_1D22C600/X79 series chipset SMBus Host Controller
Device names: The PCI ID Repository, public data. We never host driver files: downloads come from the maker.