DriverCove

Chipset & system devices drivers

Chipset drivers are the nervous system of the board: bus controllers, power management, SMBus, ACPI devices. Windows runs without them, but with odd gaps - unknown devices in Device Manager, sleep that does not work, slow ports. The packages here are Intel, AMD and board-maker releases from official sources.

Chipset & system devices drivers by brand

Common problems with these devices

About chipset & system devices drivers

People usually find this category through yellow icons in Device Manager after reinstalling Windows: "SM Bus Controller", something starting with ACPI\, "Unknown device". Nothing is broken - these are chipset system devices that the stock install had no driver for, and one chipset package normally clears several icons at once.

It also pays to install the chipset driver before the rest: it hands the system the map of its own devices, after which sound, network and USB may install themselves.

Frequently asked questions

I have an "SM Bus Controller" with a yellow icon - what is it?
A service bus of the chipset. The Intel or AMD chipset package for your board installs it and the icon goes away.
What does a chipset driver give me if everything already works?
Correct device detection, power-saving states, stable ports. No yellow icons and working sleep - then there is nothing urgent to fix.
An ACPI device with no driver - is that dangerous?
No - these are usually buttons, sensors or power management. Find it by the Hardware ID (it starts with ACPI\); the driver most often ships inside the chipset package or the laptop maker's utilities.