Low-Power Source Detected

[GabrieleMarca]

Right so on Friday the power supply for my Omen 17 suddenly stopped working when I got home and plugged it in.
I checked it with a multi-meter and I was getting a 0.6V output, so I ordered a new one to the exact same part number: M34531-003 (Edited)

The power supply arrived the following day, plugged it in, all good all fine.

Monday comes around, I plug the laptop in in a random meeting room: "Low Power Source Detected"

Try 3 different outlets in different rooms and floors of the building, all show the same message, come home, same again.

I have no idea why it is saying this, the power supply worked fine at home on Saturday and Sunday.

Ran diagnostics for a further check: "AC Adapter Test: WARNING"

Pass ID: 24806-76717-63654

(Edited)

Am I missing something? Did I need to code the new power supply into the laptop like some cars need with new car batteries? I tested the new power supply and it delivered a solid 19.5V, the BIOS said to check the power pin so I checked it and there's no bend or anything.

Could this be a issue on the laptop plug side or do I need to return the brand new power supply?

[Sneha_01]

Hi @GabrieleMarca 

Welcome to HP Support Community.

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

It sounds like you're encountering a "Low Power Source Detected" error, even after replacing the power supply for your HP Omen 17. Given that the new power supply is providing the correct 19.5V output and you’ve already tested it, it seems unlikely that the power supply itself is defective. Here are some possible causes and steps you can take to resolve the issue:

1. Check the Laptop’s Charging Port and Power Pins

• Since you've already verified that the power supply is outputting the correct voltage, there could be an issue with the laptop’s charging port or the DC power jack where the adapter plugs in.
• Solution: Inspect the charging port and power pins carefully for any signs of damage, dust, or corrosion. If there are any bent pins or debris inside, it can interfere with the connection and cause charging issues.
• Clean the charging port gently using compressed air to clear any dust or dirt.

2. BIOS/UEFI Settings and Battery Charging Configuration

• Some laptops have settings that regulate how the battery and power supply interact, and they might need to be adjusted or reset.
• Solution:
  • Reset the BIOS settings to default: Enter the BIOS during boot (usually by pressing F10 or Esc during startup) and reset to default settings. This might help if any specific settings are causing the issue.
  • Check for any battery settings or power management options in the BIOS that could be affecting charging.

3. AC Adapter Test in BIOS

• You mentioned the diagnostics showed an AC Adapter Test: WARNING, which means the system recognizes an issue with the power source.
• Solution: You could attempt to recalibrate the battery by leaving the laptop unplugged until the battery is completely drained, then reconnecting it to the power supply and charging it from 0%. Sometimes this can help resolve power-related issues.

4. Laptop Battery Health

• Even though the power supply is functioning correctly, if the battery inside the laptop is damaged or malfunctioning, it may cause charging issues.
• Solution: Check the battery status using the Windows Battery Report. You can generate this report by running the following command in Command Prompt:powercfg /batteryreport

I hope this helps.

Please mark this post as “Accepted Solution” if the issue is resolved and if you feel this reply was helpful click “Yes”.

[GabrieleMarca]

Thank you for your reply and your proposed solutions,

I checked the pin connections on both sides, cleaned as much as I could short of blasting it with compressed air, I then let the laptop drain to 0% as suggested and plugged it in, I still got the same error message.

I updated all drivers that I could, tried to run a battery calibration from the BIOS but since the battery health showed no issues the calibration option was unavailable. I also could not find any options or prompts to reset the battery settings or power setting as you suggested, only to test the power source and battery.

The windows battery check produced the above report, I don't understand what it says but you might, I will try cleaning with compressed air tools on Monday when I have access to them but apart from that I do not know what to do since nobody seems to have had any issues like this with a brand new power supply. 
If all fails I will have to return the product and ask for a refund.

Any other suggestions that I can try? Any specific boards or control units that I should check for voltage or resistance?

[Sneha_01]

Hi @GabrieleMarca,

Thank you for your response.

It sounds like you’ve gone through a lot of great troubleshooting steps already, including checking pin connections, updating drivers, and performing battery diagnostics. Given that you've already cleaned the connections and tried various software-based solutions, let’s go through a few more advanced suggestions to narrow down the issue and avoid having to return your laptop:

Additional Suggestions to Try:

1. Check the Power Adapter and Cable (Again)

Even though you mentioned using a new power supply, it’s still worth double-checking the power adapter and charging cable:

Verify the Wattage: Ensure the power adapter meets the required wattage for your laptop. Sometimes, even brand-new adapters can be faulty or not meet the correct specifications. If possible, try using a different compatible charger (from the same manufacturer if you can) to see if the issue persists.

Inspect the Power Cord and Adapter: Look for any signs of wear or issues with the power cable, adapter, or plug. Even a brand-new power adapter can sometimes have internal issues, so if possible, test with a second adapter or power source (if available).

2. Perform a Hard Reset (without draining battery)

Although you’ve tried draining the battery, sometimes a hard reset can help clear out power-related issues.

• Steps to Perform Hard Reset:
  1. Shut down the laptop completely.
  2. Unplug the power adapter and remove the battery (if removable).
  3. Press and hold the power button for 30-60 seconds to drain any residual power.
  4. Reconnect the battery (if removable), and then plug the power adapter back in.
  5. Turn on the laptop and check if the error persists.

This method can help reset internal power-related circuits that might be causing the issue.

3. Check for BIOS and Firmware Updates

Sometimes, the issue could be related to firmware or BIOS settings that are not properly calibrated for the battery and power management system:

Update BIOS:

1. Visit your laptop manufacturer’s website and look for the latest BIOS update.
2. Download and install it following the hp instructions.

Check Battery and Power Management Settings in BIOS:

• You already mentioned running the battery calibration in the BIOS, but sometimes the BIOS has additional power settings that can be reset or optimized. Check for any power management options in the BIOS and reset them to their default settings.

I hope this helps.

Please mark this post as “Accepted Solution” if the issue is resolved and if you feel this reply was helpful click “Yes”.