This will make the laptop idle at 800Mhz, just like the battery. (Will explain later)ī) From the Power options set the plugged-in MINIMUM CPU frequency at 5% (Just like Battery). So with this information I did the followingĪ) Put the Power slider on Better Performance. However on AC it is impossible to reach this temp. Reaching this temperature will make the fans switch off both on AC and on Battery. This is what is causing the heat buildup and the fan kicking in (As you know from another post the fans kick when in the 90-100C range and will stay on until the laptop TZ01 sensor reaches 45 degrees. On AC the laptop stayed at 3.6 - 3.9 Ghz and was boosting very frequently. Stay long enough on this mode and you will soon discover that the fan will never stop spinning When the Power Slider is at BEST PERFORMANCE the laptop will maintain 3.6-4 GHz whether it is on AC or Battery. That and point 1 is what is causing the low temperatures On Battery the laptop clocks at around 800 Mhz and 1-2 Watt when idling. On Battery the laptop CAN boost IF you place the Windows power slider in Best Performance On Battery the laptop does not boost to 4Ghz and 30Watt My Spectre had the fans completely off when on battery (with moderate use of course) but as soon as I plugged the AC the Spectre was hovering at 60-70C with the fans always on. Like everyone with a spectre x360 13t (8550u) I also had the problem with the spectre's fan noise and temperatures when on AC.
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