-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
- HP Community
- Notebooks
- Notebook Software and How To Questions
- Capslock and numlock key is blinking 3times and screen is bl...

Create an account on the HP Community to personalize your profile and ask a question
Your account also allows you to connect with HP support faster, access a personal dashboard to manage all of your devices in one place, view warranty information, case status and more.
Check out our WINDOWS 11 Support Center info about: OPTIMIZATION, KNOWN ISSUES, FAQs, VIDEOS AND MORE.
It has been a while since anyone has replied. Simply ask a new question if you would like to start the discussion again.
04-16-2020 03:58 AM
Product: Zbook 15ug2
Operating System: Microsoft Windows 10 (64-bit)
I trun on my hp ZBook 15ug2 (Laptop ) the caps lock and numlock is blinking wifi and volume icon is lighting and screen is blank. After capslock and numlock key keys blinking 3 times my fan trun on and then nothing happen
Plz suggest any solution for this thank you.
1 REPLY 1
04-16-2020 06:12 AM
Hi
Depending on the age of the PC and the BIOS vendor...
https://support.hp.com/us-en/document/bph07107
HP ZBook 15u G2 Mobile Workstation
CPU is my guess.
Blinks RED 3 times, once per second, then 2 second pause, 3 beeps CPU not installed:
1. Install CPU.
2. Reseat CPU.
Be alert for scammers posting fake support phone numbers and/or email addresses on the community.
If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation.
Didn't find what you were looking for?
Ask the community
† 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>.