thank you. I also followed the guides on Arctic Silver. On the CPU and Northbridge (both chips with the exposed die) I applied a rice sized amount and spread it across the die with a clean razor blade. Just as SimsHsia did. On the Southbridge, the large one on the right bottom I put a bit more thermal grease on it and didn't spread it around. Then I carefully placed the heatsink on top of the chips, best without moving or rotating it again and fixed the screws. Your idle temperature seem ok, but could be a bit lower. Maybe you have some background process running. So when on battery, no devices connected, Marvell LAN card deactivated in the device manager and when you open RMClock take a look at the CPU load, OS Load, discharge rate and CPU temperatures. The OS load should hover around 0%, the CPU load somewhere between 50% and 80%, the discharge rate, with brightness to min setting, wifi turned off and CPU idling somewhere around 7 Watt. With this values my CPU temperature goes down to 41-42C and the fan turns off sometimes. The 45C aren't bad, and won't harm your tablet. It's just possible that you could apply the thermal grease better or you just have a few not needed programs/devices running in the background which consume some CPU power. So just take a second look at the numbers in RMClock and make sure that you turned off your wifi and deactivated your wired lan card in the device manager.