Sm Bus Controller Driver Windows 10 64 Bit Dell May 2026

The Ultimate Guide to the SM Bus Controller Driver for Windows 10 64-bit on Dell Systems

Published by Tech Rescue Team | Updated: October 2023

If you have just performed a clean installation of Windows 10 (64-bit) on your Dell laptop or desktop, or if you notice a small yellow warning icon next to an unknown device in your Device Manager, you are likely staring at the dreaded "SM Bus Controller" error.

For many users, seeing "SM Bus Controller" with an exclamation mark is confusing. What is an SM Bus? Do you need it? And crucially, where do you find the correct driver for a Dell computer running Windows 10 64-bit? sm bus controller driver windows 10 64 bit dell

In this article, we will explain exactly what the SM Bus Controller is, why your Dell needs it, and step-by-step methods to download, install, and troubleshoot the driver on 64-bit versions of Windows 10.

Error 3: SM Bus Controller still shows yellow after reboot

• Cause: Windows 10 replaced the Dell driver with a generic one via Windows Update.
• Fix:
  1. Open Device Manager.
  2. Right-click SM Bus Controller > Properties > Driver tab.
  3. Click Roll Back Driver.
  4. If grayed out, click Uninstall Device and check "Delete driver software."
  5. Reinstall the Dell chipset driver again.

Method 1: Dell Support Website (Official & Recommended)

1. Go to: Dell Support Drivers (www.dell.com/support/drivers)
2. Enter your Service Tag or click "Detect PC" to let Dell auto-detect your system.
3. Click "Drivers & Downloads."
4. Important: Set your operating system to Windows 10 64-bit.
5. In the search box, type "Chipset" or "Intel Chipset Driver."
6. Look for a driver with the following names:
   • Intel Chipset Device Software
   • Intel Management Engine Interface (MEI)
   • Chipset Driver for [Your Dell Model]
   • System Management Bus Driver
7. Do not download video, audio, or BIOS drivers—stick to Chipset.
8. Click Download and then Install.
9. Reboot your Dell.

Note: Dell often bundles the SM Bus Controller driver inside the "Intel Chipset Device Software" package. Even if the name doesn't say "SM Bus," installing the chipset driver will resolve the issue. The Ultimate Guide to the SM Bus Controller

Method 2: Windows Update (The Easiest Way)

Sometimes, Windows Update can find the driver automatically if you search manually.

1. Press Windows Key + I to open Settings.
2. Go to Update & Security > Windows Update.
3. Click Check for updates.
4. If that doesn't work, click "View optional updates" (if available). Look under "Driver updates" to see if a chipset driver is listed there.

Q3: Do I need a separate SM Bus driver if I install an SSD or more RAM?

No. The SM Bus driver is tied to the motherboard chipset (e.g., Intel H370, Q470, AMD B550). Adding storage or memory does not affect it. Error 3: SM Bus Controller still shows yellow after reboot

Step-by-Step Instructions:

1. Open your web browser on the affected Dell machine (or use another computer with a USB drive).
2. Go to the official Dell Support Website: https://www.dell.com/support
3. Click on "Detect PC" – Allow the Dell detection tool to run. This will automatically read your Service Tag.
   • Alternative: Manually enter your Service Tag or Model number in the search box.
4. On your product page, click the "Drivers & Downloads" tab.
5. Operating System Filter: Set the dropdown to Windows 10, 64-bit.
6. Category Filter: Select "Chipset" from the category list.

Fix #4: Check for BIOS/UEFI Updates

An outdated BIOS can cause driver conflicts. Download the latest BIOS for your Dell model from the support site. Flash the BIOS, then reinstall chipset drivers.