PCI\VEN_8086&DEV_A2A3
200 Series/Z370 Chipset Family SMBus driver
PCI\VEN_8086&DEV_A2A3 is the Intel Corporation 200 Series/Z370 Chipset Family SMBus, 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_A2A3 |
|---|---|
| Device name | 200 Series/Z370 Chipset Family SMBus |
| 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 | 1 |
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 200 Series/Z370 Chipset Family SMBus is built into that maker's product.
| Full hardware ID ending | Maker | Product |
|---|---|---|
SUBSYS_7A721462 | Micro-Star International Co., Ltd. [MSI] | H270 PC MATE |
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 200 Series/Z370 Chipset Family SMBus
- 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_A2A3. - 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_A0A3500 Series Chipset Family On-Package System Management Bus (SMBus)VEN_8086&DEV_A123100/C230 Series Chipset Family SMBusVEN_8086&DEV_A1A3C620 Series Chipset Family SMBusVEN_8086&DEV_A223C620 Series Chipset Family (Super) SMBusVEN_8086&DEV_A323300/C240 Series Chipset Family SMBusVEN_8086&DEV_A3A3B460/H410 Chipset SMBusVEN_8086&DEV_A822Lunar Lake-M SMbus ControllerVEN_8086&DEV_AE22Core Ultra 200 Series Processors SMBus
Device names: The PCI ID Repository, public data. We never host driver files: downloads come from the maker.