I'm am long time reader and a first time "poster". I have been climbing the latter on how to properly overclock my computer. Always treading the fine line of stability to performance. On my new build I bought top of the line or close to top of the line everything. Completly new at overclocking I didn't realize the amount of factors their were to tweak and change to obtain a performance boost. But, the one thing I did know is that you don't mess with the PCI setting, or at least never take it past 110. My BIOS lets take it to 160 if I wanted. Uasually my BIOS will turn things red or yellow or purple when I reach a danger zone but it doesn't seem to be worried about my PCIe setting. I have never been able to find anything stating the purpose of leaving that setting alone. So I downloaded AMD's overdrive utility and realized that it was tweaking that setting. So I set it in BIOS and that setting made my system stable? So my question is what is the primary purpose of the PCI setting and does it have a High that will damage any components?