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New Member
Posts: 1
Registered: ‎06-10-2019

Black Screen on Laptop, Capslock & Numbr lock Blinking 3 times.

I have an HP EliteBook 2170p laptop and runs on Windows 7. My laptop was working fine, but while I left my laptop on sleep mode and came back, my screen wouldn't turn on, the rest of the laptop was working but my screen wouldn't come on? Does anybody know what might be wrong or if there's a solution to it? I shut it down and turned it on again but I just get my caps lock and number lock blinking 3 times and the fans start making a noise.

Recognized Member
Posts: 104
Registered: ‎04-19-2017

Re: Black Screen on Laptop, Capslock & Numbr lock Blinking 3 times.

The unit might be toast. There isn't much that can be done if the screen doesn't work. If you try to connect an external monitor, does anything appear on it? If not, given that it is running Windows 7, I'd strongly consider replacing it.
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Frequent Contributor
Posts: 698
Registered: ‎02-07-2011

Re: Black Screen on Laptop, Capslock & Numbr lock Blinking 3 times.

HP blink codes


CPU
LEDs blink 1 time
CPU not functional

BIOS
LEDs blink 2 times
BIOS corruption failure

Memory
LEDs blink 3 times
Module error not functional
Reseat the memory. See the section Reseating memory modules in a notebook for more information.
If reseating the memory does not resolve the problem, try replacing the memory modules.


Graphics
LEDs blink 4 times

LEDs blink 5 times
General system board failure

BIOS
LEDs blink 6 times
BIOS authentication failure