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‎12-11-2019 05:02 AM - edited ‎12-11-2019 05:05 AM

HP Recommended
Product: Probook 640
Operating System: Microsoft Windows 7 (64-bit)

Hi i have recently gotten a black screen of death and i have tried all of the solutions like draining the laptop of power or replacing the ram replacing the bios battery and leaving it on for 1 hour to charge it but that all does not work. when i turn my laptop on frist all the lights come on then for like 10 seconds nothing and black screen and then the capslock and numlock lights start to blink and then my cpu fan starts going very fast and the lights go off of the capslock and numlock

can anyone help me?

 

 

2 REPLIES 2

‎12-11-2019 06:36 AM

HP Recommended

Hello @CasperDuvaloois 

 

What you describe sounds like a hardware issue. The blinking of CAPS lock and the fan issue confirm it - this is the PC trying to tell you where the problem is.

 

and try to identify exactly how the PC blinks, try to catch the pattern

 

Please, tell me exactly how it blinks

Your FEEDBACK is important. Use the interactive buttons below and let me know if the post helps ;
*** HP employee *** I express personal opinion only *** Joined the Community in 2013
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‎12-12-2019 12:20 AM

HP Recommended

it is blinking 5 times with each blink there is a 5 second gap for the next blink

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