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Dell Laptop Heating up

I have Dell laptop, that I leave on the Dock station at work.
When I undock it and take it out , it heats up and the fans start making a loud noise when spinning.

I would like to know what is causing the heat.

Thank you
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jskfan
Asked:
jskfan
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13 Solutions
 
John HurstBusiness Consultant (Owner)Commented:
Get Real Temp (http://www.techpowerup.com/realtemp/) and install it.

Run it and see if the CPU is heating up or the GPU is heating up.

You also may have dirt inside the box that is blocking the fan, although one would think that would affect the machine in and out of the dock.

If you operate in the dock with an external display and the laptop screen off, it could be the GPU overheating and it is cooled by the fan (which may need cleaning).

... Thinkpads_User
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Dan CraciunIT ConsultantCommented:
The heat is caused by your cpu/gpu running.
They have always heated, even when your laptop was new.

Your problem now is that the heat gets trapped inside, causing the fans to work extra hard to try and dissipate it.

The most probable cause is dust has accumulated on the fan/heatsinks and the airflow is no longer optimal.

Other very popular cause is keeping the laptop on your lap, thus obstructing the air intake. Most laptops suck cool air from the bottom and expel hot air through the side. If the fans can't get cool air, they can't do their job.

HTH,
Dan
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nobusCommented:
look if there is a BIOS update for your laptop, and check if it adresses your problem
if it workied ok before -  you can also try a system restore to that period
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John HurstBusiness Consultant (Owner)Commented:
We are being told the laptop does not heat up while in its dock.

.... Thinkpads_User
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InsoftserviceCommented:
check whether you have schedule some program to be executed when system is idle.
mainly antivirus software has such facility .
Check whether dust is present in your fan as its common issue which causes noise .
Try to use blower if possible
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jskfanAuthor Commented:
I agree, while the Laptop docked , It did not seem like it heats up….However when I undocked it and put it in the bag and took it home, and once home I got it out of the bag, the laptop went crazy, I can hear the loud noise of the fans ….I had to wait for a while to see the laptop cooling down…

So, how do I prevent that next time
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John HurstBusiness Consultant (Owner)Commented:
So now you know, as I suggested, that the monitor (screen), which uses quite a bit of power and needs the GPU as well is causing the heat build up.

It seems to me 2 primary possibilities:

1. The inside and the fan has enough dust and dirt to overheat with the extra load, but not enough with less load. This seems most likely.

2. The monitor screen may be defective or the cable to it (flexes) may have a short or a false path in it from breakage.

You need to clean it up to see and then if still issues, replace the lid and cable.

.... Thinkpads_User
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_Commented:
>> ...put it in the bag and took it home...

That sounds interesting.
- What kind of bag?
- What are the travel conditions (is it in the sun, some place hot, etc)?
- What does it do when you let it sit for 20-30 minutes before turning back ON at home?
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jskfanAuthor Commented:
I put it in a backpack…it is made for laptops..
I drove home for 20 mn
I did not turn it off when I undocked it, I put it in the bag right away
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John HurstBusiness Consultant (Owner)Commented:
But you laptop overheats when out of the dock, right? The bag was a one time thing, correct?
.... Thinkpads_User
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jskfanAuthor Commented:
I believe it overheats out of the dock…though I did not check that?
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nobusCommented:
did you check for a bios update yet? it can help
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John HurstBusiness Consultant (Owner)Commented:
I had trouble earlier understanding why a BIOS update would make a difference when the overheating occurs only out of the dock, not all the time.

... Thinkpads_User
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nobusCommented:
since you insist - this is often solved by a driver update; which in turn is driven from the bios
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jskfanAuthor Commented:
I can try the bios update too…
how do I know the right bios driver to download .
I know it is Dell Laptop , I may need to find  which DELL series is the laptop..
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nobusCommented:
well if you don't which one it is, we certainly don't know it either, or can help with it
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jskfanAuthor Commented:
It is DELL Precision M4700
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nobusCommented:
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jskfanAuthor Commented:
Thank you Guys...

I installed BIOS drivers, I will see next time if it is going to heat up.
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John HurstBusiness Consultant (Owner)Commented:
@jskfan - Thanks, and I was happy to help.
... Thinkpads_User
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_Commented:
Thank you much.    : )
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nobusCommented:
post results!
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