Last reply by 07-05-2021 Solved
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Hello Dell Community, 

I am tired of this issue with my Dell Inspiron 15 7591 (i7-9750H, 16Gb DDR4, 512GB Nvme ssd, Gtx 1050 3Gb model). For the past 4 months or so, soon after purchase I noticed that the Laptop heats up a lot and going to dangerous levels of temperature to be used on lap. I decided to buy a cooling pad and that didn't help much as without any programs loaded my cpu would reach temperatures at startup itself. I deleted a few default apps, disabled few startup apps but still had issues. I contacted Dell Support and they tested, and on pre boot Diagnostics performance check, we were getting CPU thermistor values of 99°C (High) and 91°C (Low).

They sent a Technician but that's when things started getting worse. He while trying to open the back panel broke it's back panel as he was a trainee and didn't realise the 3 screws stay intact and do not come out completely. I let him change the fans as one of the fans had sometimes stopped working. 

So then another technician was sent who applied thermal paste, run a few tests and ordered the back panel for me. And also said that may be motherboard needs replacement..

On next visit another technician comes, changes motherboard, fans, heat sinks and back panel. But no gain.

As of now the high temperature are still reaching 99°C and one can clearly feel the hot body of laptop below the screen. I am worried that such temperatures will soon kill this poor laptop completely. Also I noticed my keyboards keys sometimes don't work. Example Control button, G, H alphabets etc randomly don't work and get back life later.

What should I do. Worst part is its been 4-months or so and they are testing my patience. On top Dell representatives from escalation team even went ahead to ask me what do I expect from them. Not in a rude way but clearly implying something. I told fix my laptop. Thats all. Or talk to someone technical pls. But guys any of you facing this? Any luck in finding a solution? Please help fellas. 

Solution (1)

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I had heating issues  month after I got the laptop. max t6emp was 82 deg C.... but after a BIOS update, it went out magically..... it maxes out at 66 even at 100 percent usage. Try updating your BIOS... if that doesnt  work, flash the BIOS again. Hopefully this will solve your problem

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Replies (23)
2 Bronze
2 Bronze

Try undervolting. Undervolting will help a lot. I got lucky and was able to undervolt my i5-9300h by 165mV. Most people achieve 110 to 125mV easily.

@KJ Dell Does Undervolting void warranty? Is it acceptable by Dell?

And does it bring down the Temperature by a lot? 

No, it doesn't void your warranty. It does make the laptop significantly cooler to touch and fan almost never spins in battery mode for light administrative load.

Help. My  brand-new 15  7501 runs very hot. How do you undervolt easily. I could get a program like ThrottleStop.

Service tag <Service Tag removed> was requested in a private no-reply email from the Dell Community so I guess this where to enter it.

TAG <Service Tag removed>. 15 7501 replying to Dhiman: 

Bios 1.6.1 Loaded in Dell factory May 8, 2021. ED 1.0.9.

Turned off turbo boost in BIOS. The link to turning of turbo boost in Windows 10 no longer applies since the Processor settings have been removed from Advanced Power Settings.

Ran full BIOS diags: all passed with validation code 124247.

Over to you.



I have replied to you from a private message.



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If still under warranty, click the "Get help now" icon on the right to start a live chat session. Currently only available in the USA.

All drivers have been updated using Dell Support Assist. The top temperature is 66, see I think stopping turbo boost helped some as I can touch the exhaust vents above the keyboard now.


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I have the same problem and my 7591 just shutdown suddenly. Dell should look into this issue and provide a solution.

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