CPU/GPU recently overheating

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ardevlirn

Jun 5, 2018
2
0
10
Situation :
I recently (since 1 ~ 2 week.s) got performance issue while gaming, and seen that the CPU was getting down to 1.13GHz(normally 2.50Ghz) from overheating.

Information :
-Notebook : Samsung NP300E5E-S01FR (http://www.samsung.com/fr/support/model/NP300E5E-S01FR)
-Windows 8.1(64bits)
- CPU: Intel core i3-3120M @2.50Ghz 2.50Ghz
- Integrated graphics : Intel HD Graphics 4000
- GPU : Nvidia GeForce 710M
- Ram : 8Gb (2*4Gb DDR3)
_both CPU and GPU are connected on same heatpipe

Heat : ("X?" mean that gpu is not used so temp can't be read)
-Idle : GPU X?, CPU 50°C
-Low usage(like youtube etc...) : GPU X? , CPU 70°C
-Max usage : GPU 80-95°C, CPU 95-99°C (Gpu seems to get up from 85 to 95 because of CPU)

What has already been tried with his result :
-reverted every update 1by1 going back chronologically : Nothing
-Drivers Clean installation : Nothing
-Cleaning Fan and heatsink: greatly reduced cooling time when going from max to low/idle.
-Change Thermal Compound : got temp while idle from 60 to 50°C (i tried different amount)(old one was dry and cracked)
-Disable Hyperthreading : Nothing exept slower responce time
-Reduce Processor power from Windows Power Option : Only give a little time before overheating
-External fan : Nothing

Before performance issue and things tried to resolve it keyboard was 2times hotters than now so i really don't understand what happen :(
So here I am requesting your assistance !

(ps : Forgive my english if i made some mistake)
 
Solution
Karsten75
It's really simple. if a laptop's thermal profile changes after some time, under the same workload conditions, it's because the cooling became more inefficient. This can happen for one of two main reasons.

1. The heat transfer/airflow is more inefficient - this is dust build-up in the airflow path and on the components responsible for heat transfer (the dust acts as insulation). Laptops are extremely sensitive to this as their cooling paths, fans and heatsinks are more compromised by space considerations than desktops. It's also harder to reach and clean the surfaces where heat transfer happens - some duct is remarkably clingly and other pollutants may also cause filming on these surfaces.

2. The other, less likely cause of thermal...
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Karsten75

Karsten75

Judicious
Oct 15, 2009
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Dust is the enemy of all computers and especially laptops.

Get some canned air and blow it into the outlet vent of the machine so you're blowing away from where obstructions may be.

If that doesn't work, you may have to consider opening it yourself (with lots of =caveats about warranties and damage to thermal pads, etc) or get it to a service center.
 
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A

ardevlirn

Jun 5, 2018
2
0
10


My laptop has already been cleansed, don't automatically answer read Subject post before ^^
 
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Karsten75

Karsten75

Judicious
Oct 15, 2009
6,909
0
36,960
It's really simple. if a laptop's thermal profile changes after some time, under the same workload conditions, it's because the cooling became more inefficient. This can happen for one of two main reasons.

1. The heat transfer/airflow is more inefficient - this is dust build-up in the airflow path and on the components responsible for heat transfer (the dust acts as insulation). Laptops are extremely sensitive to this as their cooling paths, fans and heatsinks are more compromised by space considerations than desktops. It's also harder to reach and clean the surfaces where heat transfer happens - some duct is remarkably clingly and other pollutants may also cause filming on these surfaces.

2. The other, less likely cause of thermal transfer inefficiency is that the thermal pads (which are more often used in laptops) or the thermal paste are aging and is not effective in transferring heat across boundaries. This usually requires a service technician if anything can be done at all. Many laptops ae not designed for after-sales service.

Also, many laptops nowadays are designed with a 3-4 year lifespan since the battery will degrade and is not replaceable. that plays into the observation that thermal inefficiency may occur and the manufacturer has not done anything to mitigate against that.
 
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