If you see a yellow exclamation mark next to one of your PCI drivers listed under Other devices or Unknown devices in the Device Manager, and you have no idea what to do, you’re not alone. Many Windows users are reporting about this problem. But no worries, it’s possible to fix, however horrifying the scene looks.
- Thanks Dan and Spearson. I have tried both these downloads, and they don't supply a driver for my PCI Serial Port. However, everything on the computer seems to be running alright, so I don't seem to be using the serial port and I will give up on a search for a driver, and simply ignore the Device Manager warning.
- PCI serial port is serial port connected to PCI bus (not as old COM port). Likely you will find a driver at PC/motherboard support site. The exact name of device you may find either thru device parameters or asking manufacturer's support. I suppose this device is not related with your BSOD. Please share memory dump to OneDrive for analysis.
- Pci serial port driver lenovo t420. File Name: pci-serial-port-driver-lenovo-t420.exe. Driver Date: 04 February 2018. File Size: 3,782 KB. Downloaded: 24,216 times. Last Time: 21 June 2021. On neutechcomputerservices.com you can find most up to date drivers ready for download.
If your computer came with a serial port built into it (pretty rare these days), go to the support site of your computer's manufacturer, enter the identifying information about your specific model (probably the serial number), and look for the driver for the serial port. If you have difficulty doing the above, please provide the make and model.
Here are 3 solutions for you to choose.You may not have to try them all; just work your way down until you find the one works for you.
What is PCI device driver?
Free Download Pci Serial Port Driver Windows 7
PCI stands for Peripheral Component Interconnect. The PCI device you see in Device Manager indicates the piece of hardware that plugs into your computer’s motherboard, such as PCI Simple Communications Controllers and PCI data Acquisition and Signal Processing Controller as shown in the above screen shot. These are the hardware devices that keep your PC running smoothly.
If these device drivers fail to work properly, your PC suffers.
How do I fix it?
Note: The screen shots below are shown on Windows 7, but all fixes apply to Windows 10 and Windows 8 as well.
Download Pci Serial Port Driver Windows 10
Method 1: Update PCI device driver via Device Manager
Method 2: Update PCI device driver Manually
Method 3: Update PCI device driver Automatically (Recommended)
Method 2: Update PCI device driver Manually
Method 3: Update PCI device driver Automatically (Recommended)
Method 1. Update PCI device driver via Device Manager
The yellow exclamation mark next to certain device problem can usually be fixed with an appropriate and matched device driver.
1) On your keyboard, press the Windows logo key and R at the same time, type devmgmt.msc and press Enter.
2) If you can see clearly the name of the PCI device as the screen shot shown below (PCI Simple Communications Controller), just go to the manufacturer website of your computer and search for the exact driver from there.
If the computer is assembled by yourself, which means that there is not a definite manufacturer that you can turn to, you can use Driver Easy to help you download the drivers needed for free.
Method 2. Update PCI device driver Manually
If you are not sure which manufacturer website to turn to, you can use the hardware ID to search for the correct driver for you:
1) On your keyboard, press the Windows logo key and R at the same time, type devmgmt.msc and press Enter.
2) Expand Other devices. Double-click PCI Device.
3) Go to Details, select Hardware Ids from the drop-down box.
4) Now, let’s try the first ID listed here first. Copy the first hardware ID listed.
5) Paste it to the search box of the searching engine. Please also add key words such driver or your operating system.
6) Download the correct driver from the list provided. Then you need to install them as instructed by the driver provider.
Method 3. Update PCI Driver Automatically (Recommended)
If you don’t have the time, patience or computer skills to update your drivers manually, you can do it automatically with Driver Easy.
Driver Easy will automatically recognize your system and find the correct drivers for it. You don’t need to know exactly what system your computer is running, you don’t need to risk downloading and installing the wrong driver, and you don’t need to worry about making a mistake when installing.
You can update your drivers automatically with either the FREE or the Pro version of Driver Easy. But with the Pro version it takes just 2 clicks (and you get full support and a 30-day money back guarantee):
1) Downloadand install Driver Easy.
2) Run Driver Easy and click the Scan Now button. Driver Easy will then scan your computer and detect any problem drivers.
3) Click the Update button next to the flagged PCI device to automatically download and install the correct version of its driver (you can do this with the FREE version).
Or click Update All to automatically download and install the correct version of all the drivers that are missing or out of date on your system (this requires the Pro version– you’ll be prompted to upgrade when you click Update All).
We hope this post can meet your needs. If you have any questions or suggestions, feel free to leave comments below. It would be very nice of you if you are willing to click the thumb button below.