DeviceInBox

PCI Data Acquisition and Signal Processing Controller driver

Updated Sep 17, 2026

PCI Data Acquisition and Signal Processing Controller appears under Other devices when Windows finds a device of the “data acquisition and signal processing” PCI class but has no driver that names it. Despite the scary name, it is almost never an add-on card. On Intel-based laptops and desktops it is usually a thermal subsystem of the processor or chipset — the component that reports temperatures and lets the system manage fan speed and CPU power limits.

Step 1. Identify the device by its hardware ID

  1. Right-click the device → Properties → Details → Hardware Ids.
  2. Check the vendor and device codes (how to read them) and compare with the table below. Typical matches:
    • PCI\VEN_8086&DEV_1903, DEV_1603 and similar — Intel Processor Thermal Subsystem (Skylake, Broadwell and later CPUs).
    • PCI\VEN_8086&DEV_A131, DEV_9D31, DEV_A2B1 — Intel PCH Thermal Subsystem of the chipset.
    • PCI\VEN_8086&DEV_1D77 and other C600/X79 IDs — chipset functions on older Intel workstation boards.
Hardware IDDeviceDrivers
PCI\VEN_8086&DEV_1903Skylake Processor Thermal Subsystem6
PCI\VEN_8086&DEV_1603Broadwell-U Processor Thermal Subsystem2
PCI\VEN_8086&DEV_A131Sunrise Point-H Thermal subsystem7
PCI\VEN_8086&DEV_9D31Sunrise Point-LP Thermal subsystem5
PCI\VEN_8086&DEV_A2B17th Generation Processor Family Thermal subsystem - A2B15
PCI\VEN_8086&DEV_1D77C600/X79 series chipset PCI Data Acquisition and Signal Processing Controller - 1D777
PCI\VEN_8086&DEV_8C248 Series Chipset Family Thermal Management Controller8
PCI\VEN_8086&DEV_1E247 Series/C210 Series Chipset Family Thermal Management Controller10
PCI\VEN_8086&DEV_1C246 Series/C200 Series Chipset Family Thermal Management Controller10
PCI\VEN_8086&DEV_9C248 Series Thermal6
PCI\VEN_8086&DEV_1D24C600/X79 series chipset Thermal Management Controller7

Step 2. Install Intel Chipset Device Software

For PCH thermal devices and most chipset functions the fix is Intel Chipset Device Software: it installs the INF files that identify these devices, and the unknown entry is renamed to something like Intel(R) 100 Series/C230 Series Chipset Family Thermal subsystem - A131.

Run the installer as administrator and restart the computer.

Step 3. For a Processor Thermal Subsystem: install the thermal framework driver

The processor thermal device (DEV_1903, DEV_1603 and newer equivalents) is used by Intel Dynamic Platform and Thermal Framework (DPTF), renamed Intel Dynamic Tuning Technology on recent laptops. The laptop maker tunes it for each model, so get it from the support page of your laptop (usually in the “Chipset” or “Thermal” category). Packages in our catalog:

Without this driver the laptop still works, but it may run hotter, throttle earlier or keep the fan louder than intended.

If the device is not from Intel

  • AMD systems — install the AMD chipset driver package for your platform:
  • A real measurement or capture card (National Instruments, Advantech and others) — install the software from the card’s manufacturer.
  • Anything else — search the exact hardware ID:

Other chipset devices that often appear at the same time: SM Bus Controller, PCI Simple Communications Controller, Base System Device.

Related guides