Look around the battery or BIOS chip for a CLR, CL_CMOS or anything like that next to a tiny pair of bare square solder pads. Jumpers on laptops are usually bare pads rather than pins. If you find the right spot, you'll want to short it for a second with the power OFF. If that doesn't work, try 5 or 10 sec. If that doesn't work, it's either the wrong jumper or the laptop is new enough to have the power on password stored in some type of nonvolatile memory.