Thunderbolt display long beep when plugged in to macbook

I have a MacBook Pro and connect it to a Thunderbolt display. After downloading Yosemite, whenever I connect to my display it makes a long, continuous (about 1-2 minute) beeping noise. The noise repeats every few minutes. It is loud and high pitched. I have connected to other Macs and the display does the same thing, so it is not coming from the computer. Any ideas?

If you still need help, download the Thunderbolt Display manual here.
Give it a minute or two to download then use the Command + F keyboard shortcut then type: troubleshooting

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Hello @Bubu2014,
I understand that your desktop computer emits 6 long beeps when booting up, and I would be happy to assist you in this matter!
Since 6 long beeps indicate that a fatal errors related to the operation of critical motherboard components in this document, I recommend contacting our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region.
http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html
I hope this helps!
Regards
MechPilot
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the right to say “Thanks” for helping!

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This question was solved.
View Solution.

Hi,
You have two options:
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I am so frustrated right now after spending hours....

Ignore. I figured it out:)

Thunderbolt display long beep when plugged in to macbook

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