Problem with my (And maybe all?) Y50 4K using an external monitor

Specs:16Gbs of RAM512GB SSD860M 4GBi7-4710HQ/etc/ Anyhow, I finally hooked this sucker up to my monitor (Via HDMI) and was having serious performance issues in games, and other things that would be gpu/cpu worthy. I've finally found part of the culprit, which is that when the laptop screen is closed, I get bad performance, when it is open, everything is working as intended. Basically I go from this (Open lid): https://i.imgur.com/AJujwly.jpgTo this (Closed lid): https://i.imgur.com/w9uAGlN.jpg (Usually runs even slower) I suspected that the computer may be ignoring my whitelist for BF4 (For the use of discreet graphics) upon closing the laptop and switching to integrated, however, I do not believe that's the case. Lid closed while discreet graphics is forced: 15 - 25 FPSLid open while integrated graphics is forced: 5 - 7 FPS So it appears the computer just has a weird bottleneck on the GPU/CPU whenever the lid to the laptop is closed.  I have: 1. Looked through my bios2. Made sure high power settings stayed when the lid was closed/while plugged in or on battery.3. Made the computer stay awake when the lid is closed (Duh, don't know why people keep recommending this :L )4. Whitelisted the program via Nvidia's control panel to use Discreet graphics5. Tried using external monitor as extended display, and all other possible forms. All to no-avail. Anyone with a Lenovo Y50, or Lenovo Y50-4K want to confirm this issue is not just with myself? Thanks!

I am not Y50 user but I believe it is not bizzare at all. When you think of New Approach Thermal Design™  the producer is introducing in their recent models (link, link - look at the Temperature section) I can bet lot of heat dissipate up through the keyboard. Closing the lid you actually stop (or severely reduce) that heat dissipation  This can cause throttling issue.

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