Asus N750JV CPU very hot after SSD upgrade

Hi all

I own an Asus N750JV laptop with Windows 8.1 (I always installed OS and Drivers from fresh). Laptop used to run well and CPU was kept mostly cool by the fan also under slightly intensive use (videos, photoshop editing).

I recently upgraded to an SSD and reinstalled the OS as well as updated drivers. Something went obviously wrong: the CPU reaches 99 degrees (check with OpenHardwareMonitor and other similar software) and the case becomes VERY hot.This happens even just by surfing the web or idling. When the CPU hits 99 degrees, there are no programs or services that take more than 1% of CPU power.

It looks like that the fan does its job for a while, adjusting its speed to the CPU temperature - generally ranging from 65 to 80 degrees. Then something happens and the fan speed remain stuck at low level and the CPU gets hotter and hotter.

I have tried to gain control of the fan but it looks like it is not possible on this Asus (also no option in the BIOS). Do you have any idea of what the issue might be or how to cope with it, as my search on google did not return helpful results.

Many thanks!!

 

I would be very surprised if the SSD had anything to do with the heat.

Have you tried reconnecting your fan? Checking for anything caked on it (dust, pet hair, etc.)? It might be a coincidental issue in which the fan could need to be replaced.

 

Many thanks for your reply. The laptop is quite new (less than a year) and I cleaned everything when I installed the SSD. Let me point out that the fan works properly for the first 30 mins or so (variable), increasing speed as CPU temperature rises. Then out of the blue it continues spinning but at a low rpm, so that the CPU overheats (it shows 99 degrees but I suspect this is the max temp the sensor can measure, so actually could be hotter). To me, it sounds like a bad management of the fan's speed, so an issue with drivers or software.

Any way I can gain control of the fan speed?

 

It's rare that hardware fails, but it's possible that the fan has an issue. It could be that the EC firmware needs reflashed too; that's what controls fan behavior.

Unfortunately the EC firmware handles the fan profile; there's no software out there (that I know of) that really interfaces with laptop fans the way you can manually control a lot of desktop/tower fans.

 

Try to re-flash the EC here is the link for it: https://www.asus.com/Notebooks/N750JV/HelpDesk_Download/

 

Notebook fan control