HP Omen 17-CK204TX cooling system ruined by faulty BIOS /EC

[Octavianus113]

The cooling system in my laptop has stopped working correctly. I can see in the OMEN Gaming Hub program, s the fans completely shut down and show 0 rpm, even though the CPU and GPU temperatures keep rising until the laptop goes into hibernation and shutdown. Switching from automatic mode to maximum cooling or manual settings doesn’t help, because the fans remain inactive. Then, after about a minute, they suddenly turn on and run at maximum speed, since the CPU temperature already exceeds 90 degrees Celsius—only to completely shut down again after a while.

I can see across HP forum threads that this is a widespread issue happening to many other HP Omen laptop users it clearly is the fault of one of the recent BIOS updates. None of the HP suggested solutions have helped. I've ensured all software is updated to the latest versions, including the BIOS, I've ensured there are no other applications with fan control other than Omen Gaming Hub and I've checked all bios settings are correct. I've also reinstalled the entire system, but the problem still occurs randomly. I also ran the cooling system diagnostics through the software provided by HP, and the test passed with flying colours. I have further cleaned all the vents and ensured regular maintenance to prevent dust build up in the system.

My laptop is barely 3 years old and for it to not be able to function correctly despite how expensive it was, is highly disappointing.

I can see that this is a software issue. Can someone from HP please address this? Because there are many of us experiencing the same issues for nearly 4 months now. If not, I'd like someone from HP Australia to assist me with seeking a refund or replacement due to this being the fault of a faulty update released by HP causing the product to become damaged well before a reasonable life expectancy of such a product.

[SquoN]

This is not a EC or Software Issue. I spent many days on this matter and finaly came to a conclusion.
Here is the things i have tried:
- Replacing fans with brand new units.
- Reverting to old BIOS versions with a external chip programmer.

- Testing with Linux and Windows (with & without omen gaming hub and with open source omen specific bios / ec fan controller softwares)

My final observation is:
This is a mosfet solder cracking issue. Which explains why problems increased over time.
Here is what my laptop has been gone through:
"- Firstly, while gaming i experienced the fans rattling and cant change speed as normaly or stuck at same RPM. 
-- Which indicates the solder was starting to crack. Thus making the voltage non-stable. 

- Secondly, fans started to on and off. In this time period i tried Ubuntu, which i could control the fans and it worked. I could easily get stable RPM for hours.
-- Solder is getting worse.

- Thirdly, i was getting 90B error in the startup and the fans were not booting up. But if started working for once, they kept going strong for a long time. Ubuntu method doesnt work anymore.
-- Solder is gone too bad that it is not stable even if the laptop is cold.

- Lastly and currently, the fans are dead. Almost no booting up. No software can control it."

We believed that is a EC problem because resetting bios worked for a short time. But i can confirm as the solder crack increased this method doesnt work anymore.
I have a Omen 16 2022. Which has the same motherboard type as Omen 17 models. The mosfet is probably a cheap unit with a poorly placed position and with weak solder. Very close to the source of heat. And it is exactly positioned in the WASD keys, the palm area. Which can increase the pressure on that area of the motherboard.

Please try to press the area above the F3 key. This will bend the motherboard (The area is a empty spot where the fan pipes are in there, no motherboard. Which is a very thin place that can disturbute the pressure to the PCB). 
The fans will work for a short period of time because it is rejoining the solder cracks. I can confirm this. But if the laptop is hot this is not working (For me). This also explains why the motherboard replacement works but 
the issue still arrives after a period of time. 

Please spread the word. This is not a software error or a user fault. Just a poorly designed product that is doomed to be broken.  Please file a report to authorities and share the results  publicly so we can do the same thing with stronger evidences.

[SquoN]

The reason fans starts to work is because the heat changes the state of the soldering. I also think the position of the laptop might contribute to this effect but not sure enough.