
Notice any issues with the OS installation. 4.All the PCI Serial Port driver should now be installed on your PC. I searched for drivers using the properties driver update and it finishes with Windows was unable to install. If you go in device manager, click on the pci simple. I would suggest you to update the motherboard chipset drivers to check if that helps. Dell Optiplex 990 with Windows 10 - not detecting PCI new GPU Hello, Searched many sites, tried many suggestions. I check Device Manager there are 2 device with Yellow. To see more matches, use our custom search engine to find the exact driver. Uploaded on, downloaded 2709 times, receiving a 94/100 rating by 1648 users. 25th if you order now & choose one-day shipping.The Dell downloads for this model only have XP/Vista/Win 7 drivers.On Dell OptiPlex 780, 64 bit are 2 device manager.I upgraded from Windows 7 to Windows 10 and signed up for Insider Preview Program and I noticed that Dvice Manager is showing that there are no drivers installed for PCI Serial Port.M4600 laptop drivers is the following sequence.

PCI SERIAL PORT OPTIPLEX 780 DRIVER (pci_serial_7439.zip)
