Inspiron G7 17 7790, heating issue, #2

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I definitely think notebooks are running hotter these days, is it a result of OEM's silencing fan speeds to keep noise levels down? Or that CPU's have more cores, higher turbo speeds and faster GPU's as well? Even my Inspiron 5593 with a Core i5 U series with 4 cores and 4 hyperthreads runs near 90c at times just surfing in a browser and watching videos. Yeah the fan finally kicks on, but I think it should be better programmed to keep things much cooler. I worry that longevity is sacrificed for a quiet fan. Not to mention the potential throttling of speed. I wish we could get a more aggressive fan adjustment option in UEFI for those who prefer cooler over noisy. 

Yes, it sounds very much like the Thermal Pasteing of your CPU and for sure your GPU has failed. if you're not comfortable inside of a notebook you should take it to professional.

As far as checking your fan Which is a very good idea, you should download your, Service Manual, it will show you how to open and where everything is located inside and lots more information.

Wouldn't GPU failing result in me not being able to game at all properly? I am able to play just fine, it's just those temps that bother me. And the fans do kick in eventually and they're quite loud (loudness is no issue for me as long as things are kept at reasonable temps).

I did disable Turbo Boost from Bios menu which helped bring down the temperature, but I don't think I should've to do something like that to maintain cooler temperatures.

I wasn't getting any response from Dell here so I contacted some local Dell Tech Support and this was his response:

"The Coffee Lake processor supports a higher clock rate than Kabylake or older processors, that means these systems noticeably generate more heat compared to any previous generation of systems. Because of this Dell engineering has designed the system  Dell G7 and other series to tolerate higher temperatures, and the new specifications are:

• CPU peak temperature will be less than or equal to (≤) 100 ℃.
• When under heavy load the average temperature for the should be less than or equal to (≤) 100 ℃.

“These systems are designed to maintain system stability when the CPU temperature reaches a set temperature (termed the Thermal Control Circuit (TCC) activation point). The TCC is activated and adjusts the CPU frequency down by a couple of hundred MHz to reduce the temperature rise and allow the system’s thermal control mechanism to catch up (The frequency will never be below the Base Frequency Mode, e.g. Intel i9 8950 HK). This slight drop in frequency can sometimes be mistaken for a performance drop, but it is a design feature common to all Gaming Notebooks and it helps to optimize the system performance and prevent systems from exceeding 100 ℃. The TCC = 100 ℃ point for the Dell G3 3590, Dell G5 5590, Dell G7 7590 and Dell G7 7790 systems"

That sort of makes sense but it still hasn't alleviated my concern, but I would appreciate it if you guys can too take a jab at this response and confirm or deny its validity. 

Yeah the region is pretty hot these days but I keep the AC running on chilly temperatures for my personal preference as well as for my electronics. Those temps I gave were result of running the laptop under cool room temperature. I'm thinking perhaps I should invest in a cooling pad, I suppose it should help right? This is what I'm understanding that the heating issue is just the way it is and it is no fault per-se but result of modern design and increasing performance loads on these machines, yes?

By the way laptop has vents at the bottom too, curious placement for such a thing. It's got one vent on either side and two on back. But the bottom ones are bound to be restricted since it is placed on a desk

Multiple reasons exist why laptops are this way from Dell nowadays.

They use thinner materials to build these laptops and their quality is not good as well.

The region you live in is also responsible for hot laptops. If the ambient temperature in your location is too high, the laptop would find it difficult to release heat properly and cool off.

Have you tested your laptop in cooler ambient environments?

What were the results?

I have the same model but with the RTX 2070 Max-Q and it runs hot the way it comes set up.

I have not tried replacing thermal paste on the CPU and GPU but I have had good success with undervolting.  Temperatures dropped from 90s or worse down 68 to 80C-ish.

Fairly straight forward to do on a 9000 series CPU using ThrottleStop software (can't do it on 10000 series).  This youtube reviewer has a blurb about the success he achieved using an undervolt.

https://youtu.be/hQv_09WpI1U?t=439

Only issue I've had with this laptop is finding a backpack that will fit.  Dell Pro didn't fit so I'm going to post a question to the community to ask for suggestions.

Green graph shows the CPU Temp

I have the previous gen G7 7590 and have been looking into 7700 series as an upgrade, I know with the previous gen the keyboard around WASD would get excessively hot, does this occur with this gen as well?

(Thermal Grizzly kryonaut thermal grease should help keep it under 100)

Another thing not mentioned in literature about the dell G series laptops is If you have the "alienware command center" installed, pressing the f7 key will turn on "high performance mode" which will ramp the fans up to 100%. 

2.9ghz?  Mine runs at 3.9Ghz all day long.  100c is definitely normal for these cpus. They'll basically run in boost mode till they hit a thermal or power limit before throttling down. I applied a 140mv undervolt to bring the max temp into the 80's though!

I have this same problem and need assistance ASAP

I have the same problem, CPU usage 5-10% and temperature is about 80-90..

This laptop needs the fans cleaned frequently with the type they are. I clean mine every week or two niw vs the 2-4 before the moderation where i removed the screen covering the fans ti allow more air flow.  And that helped with the coolng... also...REPASTE....their thermal pasteing was HORRID...Kryonaut extream grizzly and I even went 1 step mire when I'm home and hard gaming.. [out and about and light use and battery use is fine with out this but, I got 2 laptop coolers that clip on game back over the heat vents to suck air even faster then the bullet fans in the lappy can] but the first 2 things.. got it under max load ovrclocked in the low 70s no throttling 90%of the time... but u can turn off the throttling up you want.  Now.  There's also a motion sensor u can deactivate because if ur gaming and move ur laptop you may notice dip in frames... that's a safety feature the lappy kicks out when it feels it move to not burn you thinking it's on your lap. So few things can do lits of gooood...