SYMPTOMS
On a Microsoft Windows 2000-based computer, certain PCI-Express (PCI-E) devices do not work after the computer enumerates devices. For example, after you restart the computer or change the hardware configuration, some PCI-E devices, such as network, sound, or video adapters, do not work. Additionally, in Device Manager, a yellow exclamation mark may appear next to the device. You receive the following error message when you view the device properties in Device Manager:
This device cannot find enough free resources that it can use. (Code 12)
Note This problem does not occur in later versions of Windows.