Computer is not booting up with eGPU adaptor

[KaanTr]

The problem is easy; no matter what I do the setup is not working. Everything is what is supposed to be, I connected the PSU and graphic card then I plugged black cable (NGFF to HDMI cable) and pressed the power button but unfortunately the computer didn't boot up there were no sign of problem but capslock light was bilinking so i checked the blinking code (5.3) on HP website, its says 'The embedded controller times out waiting for the BIOS.' So I started removing part on my eGPU setup to understand what it might cause this timeout problem but I couldn't find and even more interesting thing is even I only plug the black cable to the Wifi port its still not booting and giving me the same error so the problem on the cable ? Well i don't think so ,its probably some problem on my bios but I need more detailes about that to solve it so thats why I am here. If you need more info just ask i will give it what you need.

Thats the text iam using on egpu forums to found solution on eGPU side but the problem looks like on my computer because no matter what i do the computer just doesnt let me boot my laptop while the cable is connected so i decide to ask this side.

Few knowledgeable people on this comminity instruct me that I dont have whitelist on my bios 

( https://h30434.www3.hp.com/t5/Notebook-Hardware-and-Upgrade-Questions/This-computer-has-whitelist/m-... )

so I cant think any answer after this please help me 😕

[Echo_Lake]

@KaanTr

Thank you for posting on the HP Support Community.

Don't worry as I'll be glad to help, however, to provide an accurate resolution, I need a few more details:

• Have you tried with the original GPU adaptor?

While you respond to that, let's try these steps: 

Hard Reset:

1) Shutdown the computer.  

2) Unplug all the Adapter and peripherals connected.  

3) Remove the Battery. ( not for Built-in Battery computer ) 

4) Press and hold down the power button for 15 to 20 seconds.  

5) Plug-in the Adapter and put the Battery back into the computer if it's a (removable battery)

6) Try to turn on the computer and check.

Hope this helps! Keep me posted for further assistance.

[KaanTr]

Thank you for your response unfortunently I still cant do the thing I want to do , I want to connect unplug my wifi card and connect a beast adaptor that makes my computer compatible with desktop gpus and what i am doing is of course not supported by hp but what i know is it prevented by hp or not because even i hot plug  the cable computer locks it self and giving me the same capslock blinking so it musr be a protecting system from my computer and i need to know more about btw i did not understand what you mean with '

• Have you tried with the original GPU adaptor?'  is there original gpu adaptor for laptops ?

[Echo_Lake]

@KaanTr

Thank you for posting back. 

I appreciate your efforts to try and resolve the issue. As you've performed relevant troubleshooting It looks like a hardware related issue. I would request you to contact our Support and our Support Engineers should be able to sort this out.

HP Support can be reached by clicking on the following link:

• Click on this link – www.hp.com/contacthp/
• Select the product type.
• Enter the serial number of your device or select let HP detect your product option.
• Select the country from the drop-down.
• You should see the HP support number or Chat option listed

Please feel free to contact us here anytime you need any further assistance.