I can't imagine that thing lasting very long at 2.8GHz, those laptop cooler fans are pretty worthless and don't do much. If you're truly running at 2.8GHz, you must be at 90-95c after about 10 minutes of playing a game. If you are, you're a brave guy. If I can give you some advice, stop overclocking that high before you do not have a laptop to use anymore.
Asus Laptop: K53TA
OS: Windows 7 Home Premium, 64-Bit - SP1
CPU: AMD Llano A6-3400M, Quad-Core, 1.4GHz-2.6GHz (Overclocked)
GPU: AMD Radeon HD6650M, 1GB GDDR3 (Catalyst 13.1)
RAM: Samsung 4GB DDR3-1333
OS: Windows 7 Home Premium, 64-Bit - SP1
CPU: AMD Llano A6-3400M, Quad-Core, 1.4GHz-2.6GHz (Overclocked)
GPU: AMD Radeon HD6650M, 1GB GDDR3 (Catalyst 13.1)
RAM: Samsung 4GB DDR3-1333