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HP Recommended
HP Slimline Desktop - 260-p030xt CTO
Microsoft Windows 10 (64-bit)

When I power on my computer, the display shows:

AA fan is not operating correctly.

Continued operation of the computer is not recommended by HP and might cause unpredictable behavior that can result in a shutdown, data loss, or computer damage. The computer will shut down in 15 seconds. To prevent the shutdown and continue operation, press the Enter key now.

CPU Fan (90B)

ENTER - Continue startup

For more information, please visit:

http://www.hp.com/go/techcntr/startup

 

I followed the link but it was not helpful.

 

I had this problem a few months ago. I bought a new fan and everything seemed OK.

During the last week, when I powered on my computer, I received the message, and restarted my computer, and it came up OK.

 

Today, I did that but I just kept getting the error. I opened my computer and watched the fan at power on and it would turn about a quarter of the way and then stop.

I just now tried that again and, just before it powered down, the fan started spinning.

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.