Short for PCI Express Graphics, PEG link mode is a patented ASUS motherboard technology that automatically tunes graphics card performance – in layman’s terms it is a graphics card overclocking utility that is built into the ASUS BIOS. Under PEG Link, there are five settings for this unique function: auto, slow, normal, fast and faster. The default setting for PEG link mode is auto.
See “What You Need to Know About Motherboards” in the Quick Reference section of Webopedia.
