HP Pavilion dv7-7010us Entertainment Notebook PC

[jeneanjay]

I replace the motherboard and the result the pc works but i got black screen ,flashing on the Caps Lock .what should i do ?? 

[Max3Aj]

@jeneanjay, Welcome to HP Support Community. 

Thank you for posting your query, I will be glad to help you. 

The black screen with a flashing Caps Lock key on your HP Pavilion dv7-7010us after replacing the motherboard usually indicates a hardware or BIOS-related issue. Here's what you can do to troubleshoot:

Identify the Blink Code

The Caps Lock LED blinks in a specific pattern to indicate the error.

Count the number of blinks between pauses and refer to the table below:

Blinks

Error

1 Blink - CPU failure

2 Blinks - BIOS corruption

3 Blinks - Memory (RAM) issue

4 Blinks - Graphics failure

5 Blinks - Motherboard issue

6 Blinks - BIOS authentication failure

Troubleshooting Based on the Blink Code

For 2 Blinks (BIOS Corruption)

Perform a Hard Reset

Disconnect charger & battery.

Hold power button for 30 seconds.

Reconnect power and try turning it on.

Try a BIOS Recovery

Plug in a USB with the latest BIOS update (downloaded from HP's support website for your model).

Press and hold Win + B, then power on the laptop while holding those keys.

If the BIOS recovery screen appears, follow the instructions.

For 3 Blinks (RAM Issue)

Reseat the RAM

Remove and reinsert the RAM sticks one by one.

Try booting with just one stick in different slots.

If possible, test with another working RAM module.

For 4 Blinks (Graphics Issue)

The dedicated GPU may have failed or the motherboard isn’t detecting it properly.

If possible, try baking the motherboard’s GPU (reflow method) or replacing the board with one that has a working GPU.

For 5 or 6 Blinks (Motherboard/BIOS Issue)

The motherboard might not be properly configured or has a faulty component.

Double-check all connections, including the CPU, RAM, and power cables.

If BIOS recovery doesn’t work, you may need to reflash the BIOS using an external programmer.

External Display Test

Connect an external monitor via HDMI/VGA.

If you get a display there, the issue may be with the internal screen or display cable.

Verify Motherboard Compatibility

Did you replace the motherboard with the exact same model?

If it's a different revision, it might need a different BIOS version.
 

I hope this helps. 

Take care and have a good day. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping! 

Max3Aj

HP Support