17" MBP gets hot on left side

I have owned my mid 2009 17" MBP since 2009 when it was bought brand new. I am in the military and it has traveled with me to many countries and I have used it in my lap, on my chest and on desks. I know what is normal and what is not normal. I can tell you that recently the left side of my MBP has been getting hot around the escape key on the upper left. I know that is where it usually gets hot when doing intense computing but it is now getting hot when doing menial tasks like having Safari open or watching a video on Facebook or Youtube. I really don't multi task with it so I know there aren't any programs running in the background either.
I ran the apple hardware test and it came back with good results - nothing found. I wonder if a sensor or fan might be acting up. I use Hardware monitor and when I look at the temps most of them are in the 80s (F) except for CPU A temperature diode. It will run around 130. When I open up another window or another task the average temps can get to 100 and the CPU A gets up to 180.
I know this hasn't always been happening so I am wondering if anyone has any ideas. I plan on giving the laptop to my son for college and video editing and I want to fix this so he doesn't have to deal with the heat unless he is going computing crazy. I have already looked at some laptop cooling pads to help but I still want to fix this if possible.

1. Reset SMC.     http://support.apple.com/kb/HT3964
    Choose the appropriate method.
2. Runawy applications can shorten battery runtime,affect performances and
    increase heat and fan activity
    Activity monitor
http://support.apple.com/kb/TS1473

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I would contact applecare about this issue. a hot phone is not normal , a warm phone is.
but if you contact applecare that way you have a record of the issue incase it gets worse in the future.

Where does everyone's MBP get hot?

All,
I have another similar post, so I apologize for this, but I am wondering where everyone notices the heat on their MBP the most? Bottom? Top? Above function keys?
The reason I ask is b/c I recently had my logic board replaced by a local authorized apple repair center. Just as an aside, the job was done in about 3 hours and I was only without my MBP for an afternoon. On the other side, this could be part of the problem . . .
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-JB

Nope, mine stays cool anywhere 'below' the keyboard unless I'm burning a DVD or CD at full speed (4x). I think if you didn't have this heat before you got your logic board replaced I would take it back to the fracking geniuses.
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EDIT: have you tried resetting the PMU?

Fans Running Hard and MBP getting HOT!!!

When simply surfing the web and checking email, the fans kick on and the MBP bottom gets very hot...it seems to have just started doing this recently...is there something to fix this? Is there a setting? It is well ventilated.

This problem started on my MBP about two weeks ago.
I am only running Safari and the fans start running at 6000 rpm for about 10 or 15 mins then stops. It gets hot under the top left area. I mostly notice it running late at nite...
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Click button getting soft on left side.

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HI Sun and Welcome to Apple Discussions ...
An iMac that's less then a year old is under warranty. Any hardware issues should be reported to Apple before the warranty is up. Here is a link to find Apple stores and resellers:
http://www.apple.com/buy/locator/
Apple's online service assistant; https://selfsolve.apple.com/GetWarranty.do
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1. Reset SMC.     http://support.apple.com/kb/HT3964
    Choose the appropriate method.
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http://support.apple.com/kb/TS1473

Screen "marks"appear when MBP gets hot

i know i started a thread yesterday but this is different, my MBP gets really hot when playing video games, to the point where the middle of the screen at the bottom gets really hot, it sometimes leaves "marks" in the form of a line and little mountain ranges of lighter than black colors at the bottom. sometimes it goes away but other times i can still see the line when there is a black background. im getting a cooling pad for sure on boxing day. hopefully i have not damaged the screen yet.

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MBP getting hot

Hi
We have a number of MBP's and their associated power supply units, and have never noticed that either the computers or the psu's get very hot
However, recently it was noticed that a MBP (late 2009) was getting very hot. We took it to the local Apple store where they opened it up and got rid of some dust, but could find no real cause for the issue.
I happened to be using it yesterday and touched the 85w power supply unit which was VERY hot.
I am wondering if something is happening to the MBP that is causing the psu to get hot, or that the PSU is going wrong and causing the computer to get warm.
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Check Activity Monitor.
http://support.apple.com/kb/TS1473?viewlocale=en_US&locale=en_US

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Temperature generated by your MBP is a function of the demands that are placed on the CPU/GPU. I suggest that you do the following:
Install istat menus:
http://bjango.com/mac/istatmenus/
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When you MBP gets hot. post images of the both applications mentioned for inspection.
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Please download, install and run iStat Pro. Report back with findings.
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Hi All,
I have 15 inch Unibody MacBook Pro bought in late 2009. Specs are as below. Initially it was 4GB RAM. I upgraded it later to 8GB OWC RAM.
Model Name:          MacBook Pro
Model Identifier:          MacBookPro5,3
Processor Name:          Intel Core 2 Duo
Processor Speed:          2.8 GHz
Number Of Processors:          1
Total Number Of Cores:          2
L2 Cache:          6 MB
Memory:          8 GB
Bus Speed:          1.07 GHz
Boot ROM Version:          MBP53.00AC.B03
SMC Version (system):          1.48f2
NVIDIA GeForce 9400M:
Chipset Model:          NVIDIA GeForce 9400M
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Bus:          PCI
VRAM (Total):          256 MB
Vendor:          NVIDIA (0x10de)
Device ID:          0x0863
Revision ID:          0x00b1
ROM Revision:          3448
gMux Version:          1.8.8
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Depth:          32-Bit Color
Core Image:          Hardware Accelerated
Main Display:          Yes
Mirror:          Off
Online:          Yes
Quartz Extreme:          Supported
Built-In:          Yes
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I bought Lion from App Store recently and installed it successfully on my MBP. After few days when I left my machine running Lion from morning till evening I see a thin green line on the left side of the screen. I tried searching the web and tried few options like restarting the machine, resetting NVRAM and doing Apple hardware test (By pressing D while the machine boots). The Apple hardware test did not detect any problem. The green line still exists.
Please suggest me how to get rid of green line.

Hi Brent,
I took it to apple service center. They did some checks and found out that the display has gone bad and they replced it with new one.
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17" MBP gets hot on left side

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