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Solution 1: Instructions for Performing the Power Discharge Procedure (ATX Reset)
Your computer has no power at all or cannot boot properly. In some situations this can be caused by an external device or an electrical problem. This can usually be solved by removing all external devices and resetting the power supply.
Instructions for laptops:
1. Disconnect all external devices you have.
2. Unplug the power adapter from the laptop.
3. Remove the battery pack from the laptop.
4. Press the power button and hold it for at least 15 seconds.
5. Reconnect the power adapter.
Do not yet reconnect the external devices, they should stay disconnected. Do not yet reseat the battery pack.
6. Switch your laptop on and test if it boots normally and watch if the power LED lights up.
7. If the power LED still does not lights up, continue with the next steps.
8. Disconnect the power adapter from the laptop.
9. Press the power button and hold it for at least 15 seconds.
10. Reseat the battery pack. Do not reconnect the power adapter.
11. Switch your laptop on and test if it boots normally.
Solution 2: Unplug and reconnect System Hard Drive 1. Unplug the power adapter from the laptop.
2. Remove the battery pack from the laptop.
3. Unplug and reconnect System Hard Drive. This is normally accessible by removing a panel at the bottom of the laptop or removing the back enclosure (see User Manual).
4. Reseat the battery.
5. Switch your notebook on and test if it boots normally
Your motherboard is dead. u need to replace your motherboard. if it was any hardware device problem it will stay on but will not show any display but the leds will stay longer than 10 seconds. i suggest you find a hp authorised service center and let them diagnose. i'm pretty sure your motherboard is dead.sorry to say man.good luck
Hi, Remove the battery and then press the power button for 45 sec then refix the battery and check that the machine is turning on or not? If the laptop is not working on AC alone then this is the issue with the converter which is there on the motherboard.
1. Press and hold the laptop power button down, for 10 seconds. 2. Now remove the battery 3. Repeat step one above 4. Let the laptop sit for 10 minutes. 5. Reinstall the battery 6. Make sure docking station is unplugged, and insert laptop into docking station. 7. Plug in power supply (to dock) 8. Start the laptop. 9. IF IT STARTS, let it run a while to see if the battery is charging 10. Remove it from the dock and repeat steps 1-5 above and then go directly to 8 (start without connecting dock).
CONCLUSIONS: If the laptop started in the dock on step 9 but not 10 (only on battery), your battery or power regulator circuit may be damaged. However, if it starts in step 10 but not step 9, your docking station -or its AC power supply may be damaged Let me know how this comes out, please.