Fan makes grinding noise on start up

[Mountaineer2006]

Upon startup the rear fan makes a grinding noise. This eventually settles out. This concerns me as no grinding noise should occur, especially right out of the carton.

[Malygris1]

Hi there @Mountaineer2006,

May the Forums be with you!  It is a great place to find the help you need, from other users, HP experts, and other support personnel.  I understand that the rear fan is making a grinding sound.  I am happy to help with this.

Is there any sign of debris or wiring that is in the fan or rubbing against it?

This document may be for notebooks, but it pretty much applies to desktops as well. HP Notebook PCs - Fan is Noisy and Spins Constantly, PC is Warmer than Normal

If there is nothing obvious, you can use the following http://www.hp.com/contacthp and create a case for your issue and contact HP.

Please let me know whether that works for you, and if it does resolve your issue, please mark this post as a solution. Kudos would also be appreciated.

[Mountaineer2006 · Accepted solution]

Opened the case and there were no obstructions to the fan. No grinding noises after 5 starts. Problems may have cleared itself.