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• Why should I repaste my Notebook? I think that picture says more than any words can say. There is to much thermal paste on the thermal surfaces. To get the best temperatures as possible, you need a good-pasted system. • What do I need? - time - a bit ''sleight of hand'' - screwdriver - something to remove the thermal paste (I used ''ArctiClean 1 & 2'', for thermal material removing and thermal surface purifing, alcohol should also work) - a lint-free cloth - a good thermal paste (IC Diamond or Arctic MX-4, i used the one from Arctic) - good thermal pads (with at least 6 W/mK thermal conductivity is nice) • How to do You have to remove the following hardware of the Y580 for repasting: • Battery pack • Hard disk drive(HDD) • Optical drive • Keyboard • Keyboard bezel • System board ... You have to remove these screws: Be really careful with removing the keyboard. Do it very slowly and smooth and nothing will broke This is how the Y580 looks like without the keyboard: The same applies to the keyboard bezel. Remove it slowly and smooth, be careful The Y580 after removing the keyboard bezel: Remove the two screws and you can take out the motherboard This is the motherboard with the fan and the two heatsinks for the CPU and the GPU • The repasting - remove all thermal pads - remove the thermal paste - clean all components until they ''shine'' like that: - after the cleaning replace at first the thermal pads at the back of the GPU (backside of the motherboard) like me: - take the new thermal paste and reapply the paste to the core of the 660m and to the CPU - place the thermal pads to the parts that I marked, there were the pads placed from factory: • The result For the testing i modified the vBIOS of the 660m. I rised the core-clock to 1,2 GHz and the memory-clock to 2800 MHz. I also modified the voltage. No overvolt, but i modified it that the voltage stays always at 1,1 V. The GTX 660m stays steady at the 1,1 V and it's maximum clocks of about 1200/2800 MHz. And for the CPU (i7-3630QM) i always use ''ThrottleStop 5.00'' to get the maximum performance and steady 3,2 GHz on all cores. -> My system is throttle-free thats why it can become really hot • The temperature of the 660m goes now to a maximum of 70 degrees celcius. Before the repasting the absolute maximum temperature for the gpu was 87°C high. (with my overclock) • The temperature of the processor, the i7-3630QM, maxes out at 78°C. Before the repasting the 3630QM maxed out at 98°C with throttlestop set at 32 multiplier, 100% clock modulation, 100% chipset clock mod and BD PROCHOT turned off. All in all, the time you have to spend on reapplying the thermal paste is definitely worth it. Lower temperatures means more stable overclocks for technique-enthusiast's or higher life-time of the laptop for the ''normal'' PC-user.