"By setting JP4 manually the user opens up an enormous amount of FSB setting in the BIOS. Basically, by setting the JP4 to each of the 3 settings (besides automatic) you get the choice of 3 different FSB ranges, those being
66 Mhz FSB - 99 Mhz FSB; 100 Mhz FSB - 132 Mhz FSB; 133 Mhz FSB - 166 Mhz FSB. The only other jumpers of note are the jumpers to enable and disable the integrated audio and video systems"
FULL STORY @ RIZENET (http://www.rizenet.com/hardware/transcend-tsasl3/)