Have an All-in-one Core 17 8th Gen desktop

[Jim11-9]

Have developed a fairly large fan noise problem on boot up and does not stop.  Have tried using compressed air to clear any debris to no avail.  Is there a way/trick to remove the outer shell to better access the fan area to clean.

[old_geekster]

@Jim11-9 , welcome back to the forum.

What is the full model or product number of the computer? I need this information to review the specifications of it. Please don't furnish the Serial # or other personal information. Here is a guide to help you find it:  https://support.hp.com/us-en/document/bph07555

[Jim11-9]

HP ENVY All-in one 27 - b2XX

Product number 3LA03AA3ABA

Software build ID 18WW1SUT601#SABA#DABA

Motherboard ID 8419

Service ID 20181115

BIOS: F.50-10/24/2018

Keyboard revision A01

Total memory : 16GB

Processor name : Intel (R) Core (TN) i7-8700T CPU @ 2.40GHz

[old_geekster]

Thank you for the additional information, @Jim11-9!

I have reviewed the specifications and manuals for your AIO, but there is no information on how to open the case.  Here is a video, not your exact model, but it may help you remove the back of the case:

If this video doesn't help, you can do a search to see if you can find one that is closer to your model.  The picture in the HP documents isn't very clear.

[Jim11-9]

Thanks for the video

[old_geekster]

You are welcome, @Jim11-9!  I hope that it helps solve your problem.