I have an asus A8N-Sli mobo. I was poking around the bios and came across a category called PCI Clock Synchronization mod. The settings were Auto, to CPU, and 33.33mhz. What is this for, and what should it be set at? My graphics card is an 8800 GTS/512, and I have overclocked it. The CPU is an AMD 4800+ which is also overclocked. Another noob question is what is the PCI express clock/w values from 100-145, and what should it be set at? Thanks.