No. 51c is ok. Your system may heat up under load and the cpu fan may have stopped turning due to dust build up. I suggest you use a canned air product to clean it at least once a year. They contain solvents that evaporate quickly leaving no residue. But you may also benefit from a laptop cooler. Some come with 2 fans and sit under the laptop. They aren't much; some are only $10-15 or less after rebate.