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Cassie92
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Black screen with blinking caps lock

Notebook

I tried to power test it didn’t work. I also tried holding the windows key the the B button and power but didn’t turn on. I don’t know what else to try 

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HP Recommended

Black screen with blinking caps lock

Hi

https://support.hp.com/us-en/document/bph07107

 

Make, Model and OS please.
SKU: if possible by this method
WinKey + R and type
msinfo32
Read Line 9
System SKU: N6K07EA#ABU

Please do not post Serial Numbers.

 

How many blinks on your   ?? years old PC please.


This for PRE 2015 PC's

The following table describes the LED blink codes or beep codes during startup.

Caps/Num Lock LED

Component.

Error condition

Corrective action

LED blinks once.

CPU

CPU not functional

  1. Re-seat the processor. NB:- See the Services Media Library for steps for your PC.

  2. Replace the processor. NB:- See the Services Media Library for steps for your PC.

  3. If the CPU still does not function properly, replace the Main-Board.

LED blinks twice.

BIOS

BIOS corruption failure.

Reset the CMOS:

1 Restore BIOS if available. (If you can access the CMOS battery, pull it out and re-seat it.)

NB:- See the Services Media Library for steps for your PC.
2 Press the Windows
 
+ B keys to do a BIOS recovery.
If the error persists, replace the Main-Board.

LED blinks 3 times

Memory

RAM Module failure.

1 Reseat the memory. NB:- See the Services Media Library for steps for your PC.

2 Check each individual memory module and swap slots.

3 Replace the memory modules causing three blinks or if the blinks follow the slots.

4 Replace the Main-Board.

LED blinks 4 times

Graphics

Graphics controller failure.

Test the Main-Board with the minimum hardware & reseat all connections and graphics cards.

If the issue persists, send out Main-Board and if applicable graphics card for Mobile Workstations.

LED blinks 5 times

Main-Board

General Main-Board failure.

Test the Main-Board with the minimum hardware and reseat all the connections.

If the error persists, replace the Main-Board.

LED blinks 6 times

BIOS

BIOS authentication failure.

Restore BIOS if available.

Press the Windows

 

+ B keys to do a BIOS recovery or replace the Main-Board.

 

Little Boy Blue, come blow your horn.


Lil_Boy_Blue
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