If the motherboard has CLRTC by where the three pin connector is, that blue jumper is for resetting the BIOS to its defaults. If I am remembering correctly both P5Q-E mobos I had also had a blue jumper which was near the bottom right if you look at the mobo with the CPU socket at the top left center. Another way to describe the positioning is to have the motherboard in the position it would be in with the mobo installed in the case and you are looking at it from the side and the tower is in the upright position. If I recall correctly, that was the only actual jumper on the motherboard for my 2 mobos I had as well.
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