This Vendor ID confirms the component is manufactured by Intel .
The "PCI Data Acquisition and Signal Processing Controller" is not dangerous—it is a missing . Ignoring it will not crash your PC, but you will lose functionality from integrated sensors and low-power buses. For Acer laptops, the fix is almost always the Intel Serial IO driver from Acer’s own download portal, not a generic "driver updater."
clean installation of Windows or a major update. Without the specific chipset driver, Windows recognizes the hardware bus but does not know how to identify or interact with the specific Intel components, labeling it as an "Unknown Device". Acer Community +3 How to Fix the Driver Issue on Acer Systems To resolve this, you must install the chipset utility provided by Acer or Intel. 13 sites PCI Data Acquisition and Signal Processing Controller Driver ... Apr 28, 2025 — This Vendor ID confirms the component is manufactured
After reboot, the device should appear under System Devices as:
While your laptop might seem to be working fine, this yellow exclamation mark indicates a missing driver, which can lead to subtle performance issues and reduced battery life. This article explains what this device is, why the driver is missing, and how to fix it specifically for Acer machines. For Acer laptops, the fix is almost always
In this guide, we have walked through the process of installing and configuring the PCI Data Acquisition and Signal Processing Controller driver on an Acer laptop. By following these steps, you should be able to successfully install and use the DAS controller driver. If you encounter any issues, refer to the troubleshooting tips or contact Acer support for further assistance.
Relays voltage and temperature data from hardware sensors directly to the operating system. 13 sites PCI Data Acquisition and Signal Processing
What is the PCI Data Acquisition and Signal Processing Controller?
Intel Serial IO Driver Acer , PCI VEN_8086 DEV_9DF9 , GPIO controller driver missing Windows 11 .
Many users attempt to use "Driver Booster" or Windows Update directly, but these tools frequently misidentify the device as a generic "PCI Data Acquisition Controller." The correct driver is —it is chipset-specific and must include Intel Serial IO GPIO/I2C host controllers.