Hi friends,i installed the latest upgrade January 2014 and i made some testings and configurations with Intel Extreme Tuning Utility I can tell you that my Surface is now colder 70º,i leave it testing and configurations if anyone serves. Testing Firmware 20/01/2014 Stress GPU test:Now 70º (1048 Mhz frequency) Stress GPU test:Above 80º (998 Mhz frequency) 2 min (3 min remaining) [Total = 5 min] 10 sec. remaining Only down 1 Mhz of frequency for mantained at 70º (Now 1047 Mhz - 1048 Mhz) (Above = 948 Mhz - 998 Mhz) Stress RAM test:Now 72º Stress RAM test:Above 80º 2 min (3 min remaining) [Total = 5 min] That's all,for now i am satisfied,i reached above 80° fast and now maintained at 70° without lowering the frequency My Config Intel Extreme Tuning Utility Config Core CPU : Dynamic CPU Voltage Offset = -6,8359375 mv Processor Cache Voltage Offset = -1,9531250 mv Config Graphics GPU : Processor Graphics Ratio Limit = 10,5x Processor Graphics Voltage Offset = -62,5000000 mv I played with this configuration for hours without problems, is stable. PD/ I have not done test CPU because it never ascended to 68º. That's it guys,forgive my English. Greetings.