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This is the image of the laptop that I own [HP Pavilion DV4-2126tx].

Towards the left of the laptop is a RJ-45 socket where I connect the internet cable and close to it is the graphics card, hard drive and the slot for remote control.
For the past couple of days I have observed that the area of the keyboard near the RJ45 socket and HDD heats up more than usual.

I have the laptop raised about half a centimeter above the desk.

The HDD temp stays at 40C and the CPU at 50C while the aforementioned area heats up. I do not know what is causing the heating but to dissipate the heat, I ejected the remote control and voila, the area cooled down.

How much heating is observed ? More than what is considered lukewarm.

I would like to know what is causing the heating.

Misc

Workload while heating is observed: Nominal workload like reading a pdf file. The portion heats up in 15 mins of laptop start

Other observed things: Today, the PC, out of its own accord, turned off Windows Aero while it was in charging mode. I also observed that when this happened, the power policy had also moved from Balanced to .. NOTHING. The radio button disappeared. Do I link this to a failing GPU ? (currently it is operating on Generic PnP Monitor on Intel Graphics Media Accelerator HD Is it failing?

OS: Windows 7 Home Premium 32 bit

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Isnt this the location of physical fan ? if so, then it is usually normal that the fan place is a little hotter –  ilansch Mar 2 '13 at 20:02
    
@ilansch the fan is on the back side of the laptop, where the screen and the body get joined –  Little Child Mar 2 '13 at 20:03
    
When was the last time you cleaned dust out of the fans, vents and heat-sinks? –  Ƭᴇcʜιᴇ007 Mar 2 '13 at 21:28
    
@techie007 never :/ –  Little Child Mar 3 '13 at 3:05

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