Asmedia Asm1083 Serial Port Driver Windows 10 Updated Jun 2026

If your serial port is showing up with a yellow exclamation mark in Device Manager (often labeled as "PCI Simple Communications Controller" or "Unknown Device"), follow these steps to get it running. Step 1: Identify the Hardware IDs

If you see a yellow exclamation mark next to a under Other Devices , the bridge is working, but the serial port driver itself is missing. Step 2: Use Windows Update for Automated Installation

A: Not if you have no devices connected to the PCI slots that are routed through this bridge. However, Windows will still show an error unless you disable the device or hide it.

Right-click on the and choose Device Manager from the list. Step 2: Find the Broken Device asmedia asm1083 serial port driver windows 10

Comprehensive Guide to ASMedia ASM1083 Drivers on Windows 10

Fixing ASMedia ASM1083 PCI-to-PCIe Bridge Issues on Windows 10

The is a PCIe to PCI bridge chip. Its primary function is to convert a modern PCI Express (PCIe) interface into a legacy PCI (Peripheral Component Interconnect) bus. This chip is commonly found on motherboards (especially from the late 2000s to mid-2010s) that needed to retain support for older PCI cards—such as sound cards, network cards, or serial/parallel port cards —while using a newer PCIe-based chipset. If your serial port is showing up with

bcdedit /set testsigning on

Requires drivers specific to the serial controller (e.g., MCS9865).

. Its primary job is to act as a translator, allowing modern motherboards with PCIe slots to talk to "legacy" PCI hardware, such as old high-end sound cards or specialized industrial equipment. ASMedia Technology Inc. Why You See a "PCI Serial Port" Error On Windows 10, the ASM1083 itself is usually driverless and transparent However, Windows will still show an error unless

Navigate to the or Onboard Devices Configuration section.

What is the shown in Device Manager?

The website station-drivers.com maintains an archive of old bridge drivers. Search for "ASM1083" and download the version labeled "Win10 x64".