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Flag Post

Capslock and numlock key is blinking 3times and screen is blank

HP Recommended
Zbook 15ug2
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. 

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Message 2 of 2
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HP Recommended

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.

 

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