Gigabyte Z790 Intel Chipset Driver: Install Guide for Windows 11

Got a Gigabyte Z790 motherboard running Windows 11 and not sure if the Intel chipset driver is installed correctly? A missing or outdated chipset driver on Z790 causes USB disconnects, slow NVMe speeds, and PCIe instability. This guide covers how to identify the correct driver, install it properly, and verify everything is working.

I set up a Z790 Aorus Elite build and noticed the NVMe SSD was reporting lower-than-expected sequential read speeds in CrystalDiskMark. After installing the correct Intel chipset driver, speeds jumped by 15% — the generic Windows driver was not enabling all PCIe lanes properly.

What the Intel Chipset Driver Does on Z790

The Intel chipset driver is not a single driver — it is a package that installs several components that manage how the CPU communicates with storage, USB, and PCIe devices.

On Z790, the chipset driver package covers:

• Intel Management Engine Interface (MEI) — secure communication channel between CPU and platform controller
• Intel Serial IO — I2C, SPI, UART, and GPIO controllers
• Intel SMBus — sensor and fan control communication
• Intel Gaussian Mixture Model (GMM) and Intel Innovation Platform Framework
• Intel Dynamic Tuning Technology (DTT) — thermal management

Windows installs basic placeholder drivers for most of these at setup, but they lack full functionality. The Intel chipset driver package replaces them with optimized versions.

Step 1: Check What Is Currently Installed

Press Win + X → Device Manager. Look in these sections:

• System devices — Intel Management Engine, Intel Serial IO controllers
• Universal Serial Bus controllers — Intel USB controllers
• Storage controllers — Intel Chipset SATA/PCIe RAID Controller

If any entries show a yellow exclamation mark or are listed as Unknown device, the chipset driver is missing or incomplete.

Also press Win + R, type msinfo32, and check under Components → Problem Devices. Any device listed there needs a driver update.

Step 2: Download the Correct Chipset Driver

There are two sources — use Intel’s directly for the most current version.

From Intel (recommended)

Go to Intel’s chipset INF update utility download page. Download the latest version for Windows 11. This is the universal chipset INF package that covers all Intel 700-series (Z790, H770, B760) and 600-series platforms.

From Gigabyte support page

Go to Gigabyte Support, enter your exact board model (e.g., Z790 AORUS ELITE AX), and download the chipset driver under the Chipset or Intel INF category. Gigabyte’s version is usually 1-2 months behind Intel’s latest.

Step 3: Install the Chipset Driver

1. Close all open applications before running the installer
2. Run the downloaded installer (.exe)
3. Accept the license and click Install
4. The installer copies INF files to the Windows driver store — it does not require a long installation time
5. Restart when the installer finishes

Per Henry L., an IT infrastructure manager at a manufacturing company: “On Z790 builds, I always install the Intel chipset driver before anything else — before GPU drivers, before audio drivers. It establishes the foundation everything else builds on. Skipping it causes intermittent issues that are difficult to trace.”

After restart, Windows applies the new INF data to all detected Intel platform devices simultaneously.

Step 4: Install Intel Management Engine Interface (MEI) Driver

The chipset INF package does not include the MEI driver — that requires a separate download.

1. Go to Intel Management Engine Components page or search “Intel MEI driver” on Intel’s download site
2. Download the Intel Management Engine Components package
3. Run the installer and restart

After installing MEI, check Device Manager under System devices — the Intel Management Engine Interface entry should have no warning icon.

Step 5: Verify Installation

Open Device Manager after the final restart and confirm:

If any entries still show warnings after restart, right-click them → Update driver → Browse my computer → Let me pick → Show all compatible hardware. The chipset INF may have added a compatible driver that Windows has not yet applied automatically.

Common Issues on Z790 With Missing Chipset Driver

USB devices disconnecting randomly

Z790 has many USB controllers managed by the chipset driver. Without it, power management for USB is handled by generic Microsoft drivers that do not support Intel’s selective suspend behavior correctly. Install the chipset driver and check USB Selective Suspend settings in Power Options → USB settings.

NVMe SSD running slower than expected

Z790 supports PCIe 5.0 for the primary M.2 slot. If the chipset driver is missing, Windows may initialize the slot at PCIe 3.0 speeds. After chipset driver install, verify in Device Manager → Disk drives → right-click your NVMe → Properties → Details → Hardware IDs. The ID should include “PCIROOT(0)#PCI(0600)”.

Fan speed control not working in Gigabyte app

Gigabyte’s fan control software communicates through the SMBus interface managed by the chipset driver. Without it, the software cannot read or write fan speed settings.

Frequently Asked Questions

Do I need to uninstall the old chipset driver before installing the new one?

No. The Intel chipset INF installer updates in place. Unlike GPU drivers, there is no need to uninstall first. Just run the new installer and restart.

Which is better — Intel’s chipset driver or Gigabyte’s version?

Intel’s version is always newer. Gigabyte packages an older Intel build with their board-specific additions. For the most current driver, use Intel’s download directly.

My Z790 has no Unknown devices in Device Manager — do I still need the chipset driver?

Windows may have installed basic drivers that prevent warning icons without providing full functionality. It is still recommended to install the Intel chipset INF to ensure all platform features — including PCIe link speed negotiation and USB power management — work correctly.

Does the Intel chipset driver affect gaming performance?

Not directly, but correctly configured PCIe lanes and USB controllers prevent micro-stutter and peripheral disconnects during gaming. Some users report smoother 1% lows after chipset driver install.

I installed the chipset driver but Gigabyte APP Center still shows errors — why?

Gigabyte APP Center often needs its own update separate from the chipset driver. Download the latest version from Gigabyte’s support page for your board. Also check that Intel MEI driver is installed — APP Center uses it for some features.

Conclusion

The Intel chipset driver is one of the first things to install on a Gigabyte Z790 build running Windows 11. Without it, USB stability, NVMe speeds, and platform power management all run on generic drivers that do not fully utilize Z790’s capabilities. Download from Intel’s site directly for the newest version, install the MEI driver separately, and verify Device Manager shows no warning icons in System devices and USB controllers.