The cmos jumper is located near the corner of the board. Look for white id labeling "cmos". If there's no jumper on the 3 cmos pins, try to find or borrow a spare. Use it to cover pins 1-2. To find the manual online, I used yahoo. Type "Intel 865gv manual" and use the "Evertek wholesale computer parts" link. On this page, the manual link is at the bottom of the page.