If you install a new PCI or PCI Express expansion card and Windows will not load or Windows cannot detect your expansion card, there are some quick tests that you can perform to identify the issue.
Note: This is a common problem with PCI Express x1 expansion cards.
Note: PCI Express expansion cards work in PCI Express slots that are longer than the cards and do not use the entire slot's capabilities. PCI Express expansion cards do not fit or work in PCI expansion slots, and PCI expansion cards do not fit or work in PCI Express expansion slots.
To determine if Windows detects your expansion card, you need to check Device Manager to see if the card is listed under the appropriate heading or listed with an error. An example of an appropriate heading for a USB controller card is Universal Serial Bus controllers. The expansion card is listed in Device Manager as the name of the chipset. You can find the name of the chipset on the Technical Specifications tab for the product ID on http://www.startech.com/.
To open Device Manager, press the Windows key + R, type devmgmt.msc, and press Enter.