my hp omen laptop i7 13th gen. with rtx4080, not taking power after cmos error appreaed

[CONTECSYSTEMS]

Suddenly my HP Omen LAPTOP with i7 13th ge. and RTX 4080 gave me CMOS error and not it is not taking power. No light is coming on, on the Laptop. My Adaptor is working fine.

[Max3Aj]

Hi @CONTECSYSTEMS, Welcome to HP Support Community. 

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

It looks like your HP Omen laptop (13th Gen i7, RTX 4080) encountered a CMOS error and now won't power on at all—no lights, no response. Since your adapter is working fine, let's go through some troubleshooting steps to try to revive it:

Perform a Hard Reset

Since your laptop is not showing any power signs, try a hard reset:

1. Disconnect everything (charger, external peripherals, etc.).
2. Press and hold the power button for 30-60 seconds.
3. Release it and try powering it on again.
4. If it doesn't work, try connecting the charger and pressing the power button again.

Check for CMOS Battery Issues

Since the issue started after a CMOS error, it's possible that:

• The CMOS battery is dead or improperly seated.
• The BIOS settings got corrupted.

Try Resetting the CMOS Battery (if accessible):

1. Unplug the charger and remove the battery (if removable).
2. Disconnect the internal CMOS battery (if accessible, it's usually a coin-cell battery inside).
3. Press and hold the power button for 30-60 seconds to discharge any remaining power.
4. Reconnect everything and try turning it on.

If you cannot access the CMOS battery, the RTC Reset Method (below) might help.

Perform an RTC Reset (Real-Time Clock Reset)

HP laptops have a method to reset the CMOS settings without opening the laptop:

1. Disconnect the power adapter.
2. Press and hold the power button for 40 seconds.
3. Reconnect the adapter and try turning the laptop on.

Some models also support an RTC reset using a special keyboard combination:

• Press and hold Win + B, then power on the laptop while holding the keys.
• If the BIOS recovery screen appears, follow the on-screen instructions.

Check for Motherboard Issues

Since no lights are coming on, it could indicate:

• A dead motherboard (possibly due to BIOS corruption after the CMOS error).
• A faulty DC jack or power circuit.

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