Special clamp for computer mainboard

The utility model discloses a special clamp for a computer mainboard, which comprises a base, a detection table is fixed on the upper surface of the base, two U-shaped clamping plates are arranged on the upper surface of the detection table, a connecting block is fixed in the middle of the lower surface of each U-shaped clamping plate, and a sliding groove corresponding to the connecting block in position is formed in the upper surface of the detection table. Threaded rods are arranged in the sliding grooves, and threaded parts opposite in direction are arranged on the outer surfaces of the threaded rods. The base, the detection table, the U-shaped clamping plates, the threaded rods, the positioning holes and the bolts are arranged, the threaded rods rotate to drive the two U-shaped clamping plates to move to transversely clamp the computer mainboard, the U-shaped clamping plates move close to the surface of the detection table, then the computer mainboard is tightly attached to the detection table to be fixe