so far the max temp that I reached with the 2400G is 60*c , mostly running at 39 - 45* for internet and youtube. I use a big cooler though , ( cooler master) MasterAir Pro 3 - Be Bold in Your Pursuit of Cold | Cooler Master BUT you can get the same temperature with the included AMD cooler, it will only be noisier. No really need for a liquid cooler.. large radiator is good enough.