PCI\VEN_8086&DEV_004B
Chipset driver
PCI\VEN_8086&DEV_004B is the Intel Corporation Core Processor Secondary PCI Express Root Port, a chipset device. It is a platform part of the chipset or processor. Windows usually works without its named driver, but the chipset package gives it the right name and power settings. 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_004B |
|---|---|
| Device name | Core Processor Secondary PCI Express Root Port |
| Maker | Intel Corporation (PCI vendor ID 8086) |
| Device type | Chipset |
| Driver guide | Get the Intel chipset driver |
| Latest official package | Intel Chipset Device Software (SetupChipset.exe) 10.1.20658.8883, January 8, 2026 |
How to install the driver for Core Processor Secondary PCI Express Root Port
- 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_004B. - Try Windows Update. Settings, Windows Update, Advanced options, Optional updates. Chipset INF updates sometimes appear 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 Device Software (SetupChipset.exe) on intel.com. Our get the intel chipset driver guide explains which package fits.
- Restart and check. Device Manager should list it under System devices with its proper name.
Other Intel chipset IDs
VEN_8086&DEV_0045Core Processor PCI Express x16 Root PortVEN_8086&DEV_0047Core Processor Secondary PCI Express Root PortVEN_8086&DEV_0048Core Processor DRAM ControllerVEN_8086&DEV_0049Core Processor PCI Express x16 Root PortVEN_8086&DEV_0069Core Processor DRAM ControllerVEN_8086&DEV_01002nd Generation Core Processor Family DRAM ControllerVEN_8086&DEV_01042nd Generation Core Processor Family DRAM ControllerVEN_8086&DEV_01543rd Gen Core processor DRAM Controller
Device names: The PCI ID Repository, public data. We never host driver files: downloads come from the maker.