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Last week my laptop starting to give problem, I always use ac adapter, then last week starting to drain battery out until it doesn't stay-on, I replaced my ac adapter and make sure output dc volt is right, I a new battery but haven't arrived yet, last night I'm so frustrated and dismanted the laptop, I want to check that power input assembly. but seen to be ok, yesterday I was w/ HP tech support chat, he said problem could the power input assembly or motherboard.
There is a class action lawsuit currently being initiated against HP for this issue. The Complaint alleges that HP misrepresented and concealed material facts regarding certain laptops including a design defect, which causes the power jacks of the laptops to fail.
You cannot test a mother bpoard it can only be done on tech site or in the workshop, the best thing you can do since you know how to dismantle your pc is to isolate the prob
first AC output is ok
- in the motherboard ensure that there is no loosed connectivity between the power receptacle in the motherboard , any loosed soldered plugs can cause erratic prob on the pc as well, might seem ok but sometime arent visible to naked eye, you need to twist it up a bit and if you see some movement then that is the prob then you need to solder this, w 30 watts soldering iron . if you measure the input on the receptacle and ensure that there i s a presence of DC supply
if not then the prob is really on the motherboard itself, cheers
The dv series has many issues and some are under recall you can look at any of my hp support tickets for more information.
My specific question for you is it a no power problem or no post problem? Both could be a result in an extended recall service. HP LAPTOP RECALL Information
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We’ve yet to see a Windows laptop with battery life longer than 5~7 hours, unless we add an extended battery to the system. But when hpand dell launched its new series of laptops last week, one big push wasfor longer battery life.
When you purchase your notebook, charge the battery to 100 percent,discharge it completely, and then fully charge it to 100 percent againto help the battery remember exactly how much electrical charge it canhold. From then on, you’ll never need to completely discharge the laptop battery again, but always make sure when charging it that you let it reach 100 percent. DeHoop told us to “remember to plug in the laptop AC adapter(or dock/port replicator) whenever you get a chance. Most notebookswill recharge quickly.” Salinas had another tip for your batteries:“Keep them cool. Exposure to high temperatures can be a battery’s worstenemy,” he said
Hope the list can give you some help when you purchase a laptop or battery:
Voltage: 14.4V Capacity: 4400mAh Type: Li-ion, 8 cells Color: Dark Grey Dimension:205.40 x 69.80 x 20.90 mm Status: New and original. Packing: Plain Box
first, you need to try to power on your laptop with another battery with the AC adaptor plugged in. if your problem was not solved you need to check the power jack on your mothernorad.
- unplug ac adapter
- remove battery
- hold down power button for 10 secs without any power source
- this is called power drain or power cycle
- plugged in ac adapter /charge & try turning it on
if it turns on now, u can re-attach the battery
- if it doesnt turn on still, call HP for support, you might need to send it in for repairs
Hp recalls some king of batterys, maybe yours it is on this recall, contact hp web or phone to take advantege of this recall, otherwise appears that your battery do not work you may replace it.
The notebook battery may have a defect if it will not power on the notebook and if it will not hold a charge. The battery indicator light on the notebook either does not light or always blinks orange. The notebook operates correctly when connected to the AC adapter. A battery that will not charge may be the result of an AC adapter failure, a system board failure, or a battery failure. Perform the steps below to diagnose the failure. Troubleshoot the power supply To verify that the AC power supply is functioning properly, follow the steps below.
1. Plug the AC adapter directly into a functioning wall outlet, and plug connector into the computer. Do not plug into a power strip, surge protector or secondary power source. 2. Verify the following operation and take the appropriate action: * That all power cord connections are secure. If the AC adapter connection to the notebook is loose, the connector may be damaged and require repair. Contact HP service and support for further assistance. * That the power button or power LED is lit when the computer is on. * That an LED on the AC power supply adapter is lit when plugged into an AC wall outlet (not available on all AC power supply adapters). * That the AC power supply adapter is the correct type. Different notebook models require different AC power supply adapters. You will need to know the Product Number of your notebook to determine the Part Number of the replacement part. Click Start > HP Help & Support to view the product name, product number, and serial number that you'll need to have to speak with HP Customer Service. View the See Also section for information about locating HP Help & Support in your operating system.
Troubleshoot the System Board If you've verified that the AC power functions properly, troubleshoot the PC's system board by following the steps below.
1. Remove the battery, and keep the notebook connected to AC power. 2. Press and release the Power button to start the computer. * If the notebook PC powers on , then the AC adapter and system board are functioning properly. Go to Troubleshoot the battery . * If the Power LED is off , then the AC power adapter needs to be replaced. Contact HP Service and Support for further assistance. * If the power LED is on , but the notebook PC does not power on, then the notebook PC needs to be repaired. Contact HP Service and Support for further assistance. 3. Shut down Windows by selecting Shut Down from the Start Menu.
Troubleshoot the battery If you have verified the AC power supply and system board are functioning correctly, troubleshoot the battery by following the steps below.
1. Insert the battery into the battery compartment on the bottom of the notebook PC. 2. Connect the AC power supply and allow the battery to charge for 15 to 30 minutes. NOTE: The Battery Charging light should be on while the battery is charging. If it is not on, check the AC power adapter connection to the notebook PC. 3. Unplug the AC power adapter cord from the notebook PC. 4. Press and release the Power button to start the computer using only the battery as the power source. * If the PC does not power on, then the battery needs to be replaced. Contact HP service and support for further assistance. * If the notebook PC does power on, the battery is functioning properly. NOTE: If you have purchased a second battery for your notebook PC or you have access to an identical battery, you can also check the battery by inserting the second battery into the PC and performing the Troubleshoot the battery steps again.
step1. Remove battery and ac adapter
step2. Hold on to power switch for 30secs-1mint
step3. Put back the battery and ac adapter
step4. Start the laptop as usual
IT SUD BOOT PERFECTLY
after doing this also if the symptoms are same
i apologise to tell u ...its gonna be Motherboard probs which is common nowadays in Most of the HP LAPTOP
Change your AC charger. It's NOT charging "When the laptop is plugged into the AC, the power meter in windows
tells me that the power source is still batteries, and the battery
level drops by about 1% every few hours" That's the reason why: "battery has completely died" If you do not change it you'll continue to "still it gives me the same low battery indication and will not turn on.
"
thanks guys...
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