This Dell support page allows users to download drivers for their Dell Precision WorkStation PLX_GX620. It provides a list of drivers that can be downloaded organized by category including audio, chipset, graphics, network, RAID, storage, systems management, and others. Users can search or browse the list to find the specific driver they need to install or update for their Dell Precision WorkStation PLX_GX620 system.

1. http://support.dell.com/support/downloads/driverslist.aspx?
c=us&l=en&s=gen&os=WW1&osl=en&catid=&impid=&SystemID=PLX_GX620