HOW TO FIX POWER MODULE PROBLEM ON hp pavillion dv9500. The power cord is ok, but the module must be broke because the blue light goes on and off depending on how how move the cord at the connection site. I think the module is soldered directly into the motherboard. any suggestions?

Solution one: Make sure the electrical outlet works
Unplug the power cord from the electrical outlet.
Plug another appliance into the electrical outlet to make sure the outlet works.
If the electrical outlet does not work , plug the product into another outlet that does work.
If the electrical outlet works, but the product still does not turn on , continue to the next step.
Solution two: Make sure the power supply is compatible with the HP product
The term power supply refers to both the power module and the power cord.
NOTE: To make sure that your product and power supply are compatible, HP suggests you use the original power supply shipped with your product.
Example of a power module Example of a power cord
NOTE: The power module might have a permanently attached power cord, or the power cord might detach from the power module.

Make sure the voltage and amperage specifications printed on the power supply match the voltage and amperage specifications printed on the HP product.
Voltage and amperage specifications printed on the power supply Voltage and amperage requirements printed on the HP product

If the voltage and amperage specifications between the product and the power supply are compatible, make sure the connector on the power cord is the same shape and color as the connector on the HP product.
WARNING: Do not force a power cord into an HP product that is incompatible with the HP product (different shape or size).

If the power cord is not compatible with the product, replace the power cord with a compatible cord. To buy a compatible cord, right-click the following link, How to Buy HP , and then click Open in New Window .
If the power cord is compatible with the product, but the products still does not turn on, continue to the next step.
Solution three: Reset the power module and test the power
Step one: Reset the power module
The power module has a safety feature inside that protects the product during a power surge. If you experienced a recent power surge, the power module might need to be reset. Use the following steps to reset the power module.
Unplug the power supply from the rear of the product.
Unplug the power cord from the electrical outlet, power strip, or surge protector.
If the product uses a power module with a detachable power cord, disconnect the cord from the power module.
Wait 15 seconds.
Reconnect the power cord to the power module.
Plug the power cord back into the electrical outlet. Do not use a power strip or surge protector.
Check to see if the power module has an LED.
If the power module does not have an LED, continue to the next step.
If the power module has an LED, check to see if the LED lights up.
If the LED does not light up, contact HP to replace the power module. To buy a compatible power module, right-click the following link, How to Buy HP , and then click Open in New Window .
If the LED lights up, continue to the next step.
Step two: Test the power on the All-in-One
Follow these steps to test the power on the product.
Reconnect the power supply to the rear of the product.
Press and quickly release the Power button to start a Power On/Off cycle. Do not hold the button down.
Figure 1: Press and quickly release the Power button

If you press and hold the Power button too long, the product might turn on and then off without restarting. If this happens, press and quickly release the Power button again.

If these steps resolved the issue , there is no need to continue troubleshooting.
If the issue persists , see the next step.
Solution four: Test the power with a compatible power cord from a different product
If you have another available power cord that is compatible with your product, use the alternate cord to repeat the steps in Solution three: Reset the power module and test the power .
If the product turns on with the alternate power cord, the original power cord caused the issue. Contact HP to replace the power cord. Right-click the following link, How to Buy HP , to buy a compatible power cord.
If the product does not turn on with the alternate power cord, continue to the next step.
Solution five: Service the HP product
If you have completed all the preceding steps and are still experiencing a problem, service the product.

Maybe problems with memory module and faulty video chip. Change memori modul`s and if its not ok then is Video chip faulty.

1. Unplug the power cord from the electrical outlet.
2. Plug another appliance into the electrical outlet to make sure the outlet works.
   • If the electrical outlet does not work , plug the product into another outlet that does work.
   • If the electrical outlet works, but the product still does not turn on , continue to the next step.
   • The power module has a safety feature inside that protects the product during a power surge. If you experienced a recent power surge, the power module might need to be reset. Use the following steps to reset the power module.
     1. Unplug the power supply from the rear of the product.
     2. Unplug the power cord from the electrical outlet, power strip, or surge protector.
     3. If the product uses a power module with a detachable power cord, disconnect the cord from the power module.
     4. Wait 15 seconds.
     5. Reconnect the power cord to the power module.
     6. Plug the power cord back into the electrical outlet. Do not use a power strip or surge protector.
     7. Check to see if the power module has an LED.
        • If the power module does not have an LED, continue to the next step.
        • If the power module has an LED, check to see if the LED lights up.
          • If the LED does not light up, contact HP to replace the power module. To buy a compatible power module, right-click the following link, How to Buy HP , and then click Open in New Window .
          • If the LED lights up, continue to the next step.
     Step two: Test the power on the All-in-One Follow these steps to test the power on the product.
     1. Reconnect the power supply to the rear of the product.
     2. Press and quickly release the Power button ( ) to start a Power On/Off cycle. Do not hold the button down. Figure 1: Press and quickly release the Power button If you press and hold the Power button too long, the product might turn on and then off without restarting. If this happens, press and quickly release the Power button ( ) again.
     • If these steps resolved the issue , there is no need to continue troubleshooting.
     • If the issue persists , see the next step.
     Solution four: Test the power with a compatible power cord from a different product If you have another available power cord that is compatible with your product, use the alternate cord to repeat the steps in Solution three: Reset the power module and test the power .
     • If the product turns on with the alternate power cord, the original power cord caused the issue. Contact HP to replace the power cord. Right-click the following link, How to Buy HP , to buy a compatible power cord.
     • If the product does not turn on with the alternate power cord, continue to the next step.
     Solution five: Service the HP product If you have completed all the steps listed above and are still experiencing a problem, service the product.
     
     
     

The power module has a safety feature inside that protects the product during a power surge. If you experienced a recent power surge, the power module might need to be reset. Use the following steps to reset the power module.

1. Unplug the power supply from the rear of the product.
2. Unplug the power cord from the electrical outlet, power strip, or surge protector.
3. If the product uses a power module with a detachable power cord, disconnect the cord from the power module.
4. Wait 15 seconds.
5. Reconnect the power cord to the power module.
6. Plug the power cord back into the electrical outlet. Do not use a power strip or surge protector.
7. Check to see if the power module has an LED.
   • If the power module does not have an LED, continue to the next step.
   • If the power module has an LED, check to see if the LED lights up.
     • If the LED does not light up, contact HP to replace the power module. To buy a compatible power module, right-click the following link, How to Buy HP , and then click Open in New Window .
     • If the LED lights up, continue to the next step.

Step two: Test the power on the All-in-One Follow these steps to test the power on the product.

1. Reconnect the power supply to the rear of the product.
2. Press and quickly release the Power button ( ) to start a Power On/Off cycle. Do not hold the button down. Figure 1: Press and quickly release the Power button If you press and hold the Power button too long, the product might turn on and then off without restarting. If this happens, press and quickly release the Power button ( ) again.

• If these steps resolved the issue , there is no need to continue troubleshooting.
• If the issue persists , see the next step.

Solution four: Test the power with a compatible power cord from a different product If you have another available power cord that is compatible with your product, use the alternate cord to repeat the steps in Solution three: Reset the power module and test the power .

• If the product turns on with the alternate power cord, the original power cord caused the issue. Contact HP to replace the power cord. Right-click the following link, How to Buy HP , to buy a compatible power cord.
• If the product does not turn on with the alternate power cord, continue to the next step.

Solution five: Service the HP product If you have completed all the steps listed above and are still experiencing a problem, service the product.

If you need more help come back.

Post / thumbs / testimonial are welcome!

Solution one: Make sure the electrical outlet works

1. Unplug the power cord from the electrical outlet.
2. Plug another appliance into the electrical outlet to make sure the outlet works.
   • If the electrical outlet does not work , plug the product into another outlet that does work.
   • If the electrical outlet works, but the product still does not turn on , continue to the next step.

Solution two: Make sure the power supply is compatible with the HP product

1. Make sure the voltage and amperage specifications printed on the power supply match the voltage and amperage specifications printed on the HP product. Voltage and amperage specifications printed on the power supply Voltage and amperage requirements printed on the HP product In this example, the voltage (+32 V) and the amperage (2000 mA) from the power supply is compatible with the voltage and amperage specified on the HP product.
2. If the voltage and amperage specifications between the product and the power supply are compatible, make sure the connector on the power cord is the same shape and color as the connector on the HP product. WARNING: Do not force a power cord into an HP product that is incompatible with the HP product (different shape or size).
   • If the power cord is not compatible with the product, replace the power cord with a compatible cord. To buy a compatible cord, right-click the following link, How to Buy HP , and then click Open in New Window .
   • If the power cord is compatible with the product, but the products still does not turn on, continue to the next step.

Solution three: Reset the power module and test the power Step one: Reset the power module The power module has a safety feature inside that protects the product during a power surge. If you experienced a recent power surge, the power module might need to be reset. Use the following steps to reset the power module.

1. Unplug the power supply from the rear of the product.
2. Unplug the power cord from the electrical outlet, power strip, or surge protector.
3. If the product uses a power module with a detachable power cord, disconnect the cord from the power module.
4. Wait 15 seconds.
5. Reconnect the power cord to the power module.
6. Plug the power cord back into the electrical outlet. Do not use a power strip or surge protector.
7. Check to see if the power module has an LED.
   • If the power module does not have an LED, continue to the next step.
   • If the power module has an LED, check to see if the LED lights up.
     • If the LED does not light up, contact HP to replace the power module. To buy a compatible power module, right-click the following link, How to Buy HP , and then click Open in New Window .
     • If the LED lights up, continue to the next step.

Step two: Test the power on the All-in-One Follow these steps to test the power on the product.

1. Reconnect the power supply to the rear of the product.
2. Press and quickly release the Power button ( ) to start a Power On/Off cycle. Do not hold the button down. Figure 1: Press and quickly release the Power button If you press and hold the Power button too long, the product might turn on and then off without restarting. If this happens, press and quickly release the Power button ( ) again.

• If these steps resolved the issue , there is no need to continue troubleshooting.
• If the issue persists , see the next step.

Solution four: Test the power with a compatible power cord from a different product If you have another available power cord that is compatible with your product, use the alternate cord to repeat the steps in Solution three: Reset the power module and test the power .

• If the product turns on with the alternate power cord, the original power cord caused the issue. Contact HP to replace the power cord. Right-click the following link, How to Buy HP , to buy a compatible power cord.
• If the product does not turn on with the alternate power cord, continue to the next step.

Solution five: Service the HP productIf you have completed all the steps listed above and are still experiencing a problem, service t

Reset the power module and test the power Step one: Reset the power moduleThe power module has a safety feature inside that protects the product during a power surge. If you experienced a recent power surge, the power module might need to be reset. Use the following steps to reset the power module.

1. Unplug the power supply from the rear of the product.
2. Unplug the power cord from the electrical outlet, power strip, or surge protector.
3. If the product uses a power module with a detachable power cord, disconnect the cord from the power module.
4. Wait 15 seconds.
5. Reconnect the power cord to the power module.
6. Plug the power cord back into the electrical outlet. Do not use a power strip or surge protector.
7. Check to see if the power module has an LED.
   • If the power module does not have an LED, continue to the next step.
   • If the power module has an LED, check to see if the LED lights up.
     • If the LED does not light up, contact HP to replace the power module. To buy a compatible power module, right-click the following link, How to Buy HP , and then click Open in New Window .
     • If the LED lights up, continue to the next step.

Step two: Test the power on the All-in-OneFollow these steps to test the power on the product.

1. Reconnect the power supply to the rear of the product.
2. Press and quickly release the Power button ( ) to start a Power On/Off cycle. Do not hold the button down. Figure 1: Press and quickly release the Power button If you press and hold the Power button too long, the product might turn on and then off without restarting. If this happens, press and quickly release the Power button ( ) again.

• If these steps resolved the issue , there is no need to continue troubleshooting.
• If the issue persists , see the next step.

Solution four: Test the power with a compatible power cord from a different product If you have another available power cord that is compatible with your product, use the alternate cord to repeat the steps in Solution three: Reset the power module and test the power .

• If the product turns on with the alternate power cord, the original power cord caused the issue. Contact HP to replace the power cord. Right-click the following link, How to Buy HP , to buy a compatible power cord.
• If the product does not turn on with the alternate power cord, continue to the next step.

SOLUTION 1 If the HP All-in-One is turned off, press the On button to turn the unit on.

Unplug the power cord from the back of the HP All-in-One.

Wait 15 seconds.

Plug the power cord back into the HP All-in-One.

Turn on the HP All-in-One by pressing the On button.SOLUTION 2: Reset the power module and test the power Step one: Reset the power moduleThe power module has a safety feature inside that protects the product during a power surge. If you experienced a recent power surge, the power module might need to be reset. Use the following steps to reset the power module.

1. Unplug the power supply from the rear of the product.
2. Unplug the power cord from the electrical outlet, power strip, or surge protector.
3. If the product uses a power module with a detachable power cord, disconnect the cord from the power module.
4. Wait 15 seconds.
5. Reconnect the power cord to the power module.
6. Plug the power cord back into the electrical outlet. Do not use a power strip or surge protector.
7. Check to see if the power module has an LED.
   • If the power module does not have an LED, continue to the next step.
   • If the power module has an LED, check to see if the LED lights up.
     • If the LED does not light up, contact HP to replace the power module. To buy a compatible power module, right-click the following link, How to Buy HP , and then click Open in New Window .
     • If the LED lights up, continue to the next step.

Step two: Test the power on the All-in-OneFollow these steps to test the power on the product.

1. Reconnect the power supply to the rear of the product.
2. Press and quickly release the Power button ( ) to start a Power On/Off cycle. Do not hold the button down.

check the power supply

Try removing the battery and using only power cord to turn the laptop on. If that fails, try turning it on without power cord, just on battery.

If none of those work, then most probable cause of your problem is motherboard. Hopefuly you are either under manufacturer warranty or you have extended warranty with your vendor where you've purchased the laptop.

If your laptop turns on on power cord, but without battery, then battery is the problem. Also, if laptop turns on when it's only on battery but it doesn't when you plug ac cord in it, then the adapter is the problem.

The product uses a power cord, if the power supply is a power cord with electrical connections at each end. Figure 1: Power cord The product uses a power module, if the power supply is a power cord connected to a power module. Figure 2: Power module

• If the product uses a power module (adapter), go to Step two: Check if power is supplied from the power module.
• If the product uses only a power cord, go to Step three: Check if power is supplied from the power cord.If the product uses a power module (adapter), follow these steps to make sure that power is properly supplied to the product. Figure 3: Power module
  1. Check the power module part number against the part number listed in the User’s Guide to make sure that the proper power module is being used.
  2. If the power module has a permanently attached power cord, do the following.
     1. Disconnect the power cord from the wall outlet.
     2. Disconnect the power cord from the product.
     3. Wait 30 seconds.
     4. Reconnect the power cord to the product and the wall outlet.
  3. If the power module has a detachable power cord, disconnect the power cord from the power module and reconnect the power cord to the power module.
  4. If the power cord was plugged into a surge protector or power strip, plug the power cord directly into a wall outlet instead.
  5. If the product does not turn on, or the power light built into the power cord does not glow, plug the product into a wall outlet in another room.
     • If the product or power light turns on when connected to a wall outlet in another room, there is an issue with the power supply in the previous room.
     • If there is still no power to the product, then the power module, power cord, or product might be defective. Proceed to the next instruction.
  6. Connect the power module or power cord to another HP Deskjet or Photosmart product to see if the power module is functioning.
     • If the power light does not glow, the power module might be defective. Replace the power module and the power cord.
     • If the power module or power cord works on the other product, the product facing the issue might be defective. Proceed to Step four: Service the product.

If the product uses only a power cord, follow these steps to make sure that power is properly supplied to the product. Figure 4: Power cord

1. Inspect the power cord for visible damage.
   • If the power cord is damaged, replace the power cord.
   • If the power cord is not damaged, continue with the next instruction.
2. Disconnect the power cord from the wall outlet.
3. Disconnect the power cord from the product.
4. Wait 30 seconds.
5. Reconnect the power cord to the product.
6. Reconnect the power cord to the wall outlet.
7. If the power cord was plugged into a surge protector or power strip, plug the power cord directly into a wall outlet instead.
8. If the product still does not turn on, plug the product into a wall outlet in another room.
   • If the product turns on when connected to a wall outlet in another room, there is an issue with the power supply in the previous room.
   • If there is no power to the product, then the power cord or the product might be defective. Proceed to the next instruction.
9. Connect the power cord on another HP Deskjet or Photosmart product to see if the power cord is functioning.
   • If the power cord does not work on the other product, the power cord is defective. Replace the power cord.
   • If the power cord works on the other product, the product facing the issue might be defective. Proceed to Step four: Service the product.

Step four: Service the Product If you have completed all the steps listed above and are still experiencing a problem, service the product by calling hp at 1800-474-6836