Question about Dell (4P240) Motherboard
External power on Dell Inapiron 4150 not working but battery does work. Any solutions?
This is likely either a defective transformer on the external power adapter (not likely, but possible) or defective wiring in the external adapter wiring or the internal PC board. If you have a multimeter, set it to DC volts and put one lead inside the power jack of the adapter and the other lead on the outside portion of the jack and then plug in the adapter. You should see the rated DC output voltage on the meter (rating is usually on the bottom of the transformer, or big boxy part of the adapter). If you don't have that voltage then it is likely a defective adapter. Like another helper mentioned, try either a friends IDENTICAL adapter (don't use just any adapter or you could damage your computer!), or a universal adapter to make sure. I've seen many adapters with broken wiring in the jack, most often due to bending and/or stress when it sits in a tight space most of the time. If a new adapter also doesn't work then the computer requires service from a service center.
Posted on Oct 25, 2006
ONE MOTHER MSI AND VIA CHIPSET THIS PROBLEM IS BOARD INSTALL TO WINDOW AND START UP HANG WHATS PROBLEM
Posted on Sep 04, 2006
It could be an issue with the power cord, it it could be an issue with the computer accepting the charge. The only way to test is to get another power cord that matches the exact same one you have, or to find a univeral power cord that is compatible and see if it will use the external power this way.
Posted on Aug 23, 2006
Tips for a great answer:
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
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