Pci Serial Port Driver Windows Xp 32 Bit Page

If you are installing Windows XP 32-bit on older hardware (especially industrial PCs, legacy desktops, or motherboards from the late 2000s), you might see an unknown device labeled in Device Manager with a yellow exclamation mark.

If you post your , I can help you find the exact driver.

This is usually not a standard COM port. It is often a or an internal modem/vendor-specific device that XP cannot identify automatically.