Inspiron 7567 Overheating

Hello,

I own a 1.5yr old DELL Inspiron 7567. Intel i7-7700HQ CPU, 1050ti GPU and 16GB RAM. Its has the OS on a 256GB M.2 drive, with a 1TB SSD storage drive.

I recently have been having BSOD with my laptop which is now fixed. However in fixing this the motherboard, fans and SSD was changed and a clean install was done.

Somewhere among this, my laptop fans started making a clicking/squeak noise when they started and stopped and the CPU would hit 100C under stress tests (It used to stay around 85C). This caused the graphic part of the stress test to drop its frame-rates below 20 FPS.

I tried many windows versions to see if this would help (1703, 1709, 1803, 1809, 1903 and 1909). Stress test and squeaking stayed the same.

I uninstalled the Dell thermal framework and the stress test was about 92C, but it still throttled and was still higher than what it used to be (Note: I have had no trouble with the thermal framework in the past).

I had the CPU fan replaced (as there was a buzzing noise coming from it) and the GPU fan replaced. The clicking noise has greatly decreased (can still hear it if i'm listening for it, but its not really loud like before). The stress test was improved in the graphic part of the stress test (FPS did not drop below 100), but the CPU part of the stress test still hit 96C and throttled. Changing the fan clearly did have some improvement, but did not fix the whole problem.

The only way I could stop this throttling was to undervolt the CPU to -.110V. I also undervolted the GPU by 0.05V just in case that helped. This has put the CPU stress test at about 85C with no throttling.

My problem is, I didn't have to undervolt before this and I fear that the undervolting is just masking the underlying issue. I am also currently running windows 10 1903 which is a more recent build. I don't know if this could raise the temps as ever since the clean install I am stuck with the chipset that windows update automatically installs. The driver from the DELL site says it installs, but when you restart the PC it is gone. I cannot even uninstall this new chipset as it does not appear under "programs and features" like the other intel drivers.

I do have a spare chassis, heatsink, fans and motherboard (note: the fans made the clicking noise with this motherboard as well), so I can replace them if anyone thinks this could be the issue.

DELL says they don't know the cause as its passing all the hardware tests, so I have no idea the origin of this change. Does anyone have an idea of the possible underlying cause?