Both PCI Data Acquisition and Signal Processing Controller refer to Intel® Dynamic Platform and Thermal Framework, also known as DPTF. The main function is to help enable thin, quiet, and cool platform designs. To solve the driver issue you need to download drivers provided by your laptop manufacturer.Is it important? I'm not so sure, but if you want my personal opinion, it would say it is not a big problem and will not bother my system. However, a user reported that without this driver his Yoga 13 (lenovo) getting slower. Yellow mark on the PCI means your pc detect the hardware butdoes not recognize it. Note : If you are using driver from other brand, such as using HP driver for your Asus notebook. You need to get permission from them first. Will it work? most of the time yes, but if you do get the permission, use it at your own risk. The easiest way is to run windows automatic updates. However it is not guarantee that windows update will detect and download the drivers for you...