PCI\VEN_8086&DEV_51A3
Alder Lake PCH-P SMBus Host Controller driver
PCI\VEN_8086&DEV_51A3 is the Intel Corporation Alder Lake PCH-P SMBus Host Controller, 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_51A3 |
|---|---|
| Device name | Alder Lake PCH-P SMBus Host Controller |
| 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 |
| Known OEM variants | 2 |
PCs and boards that use this chip
Each line is a subsystem ID: the full hardware ID ends in SUBSYS_ plus these eight characters when the Alder Lake PCH-P SMBus Host Controller is built into that maker's product.
| Full hardware ID ending | Maker | Product |
|---|---|---|
SUBSYS_0B101028 | Dell | Precision 3571 |
SUBSYS_0C061028 | Dell | Precision 3580 |
If your SUBSYS matches a laptop or board maker in this list, that maker's support page has the version tested for your model.
How to install the driver for Alder Lake PCH-P SMBus Host Controller
- 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_51A3. - 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_43A3500 Series Chipset Family SMBusVEN_8086&DEV_4B23Elkhart Lake SMBus ControllerVEN_8086&DEV_4DA3Jasper Lake SMBusVEN_8086&DEV_5032EP80579 SMBus ControllerVEN_8086&DEV_54A3Alder Lake-N SMBusVEN_8086&DEV_5AD4Celeron N3350/Pentium N4200/Atom E3900 Series SMBus ControllerVEN_8086&DEV_6E23Nova Lake PCH-S SMbus ControllerVEN_8086&DEV_7722Core Ultra 200H/200V Series Processors SMBus
Device names: The PCI ID Repository, public data. We never host driver files: downloads come from the maker.