Having problems with your HP Compaq NC6400 Business Notebook ?

A humming noise when my battery is connected to the laptop.

\015 When the battery is connect to the laptop it hums and does not turn on. If the battery is disconnected and it is running on the cable then the laptop works fine. But if connected to the powercord/charger and running and then the battery is connected the laptop shut off. What is the problem. Is it a bad battery or is it something in the laptop?????\015\012\015\012Thanks for your help\015

Answers :

Hi there.
The problem is battery if the machine works on AC power only, you will have to get a new battery or continue to use it on mains power until you can get a new battery.

Good luck and thanks for using FixYa!!
Repair Help & Product Troubleshooting for HP Compaq NC6400 Business Notebook

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

A humming noise when my battery is connected to the laptop.


Hi there.The problem is battery if the machine works on AC power only, you will have to get a new battery or continue to use it on mains power until you can get a new battery.Good luck and thanks for using FixYa!! ... HP Compaq NC6400 Business Notebook

Noise in audio.


Solder a .001 uf ceramic capacitor between all audio signal lines and ground ... PC Laptops

Acer will not boot up even with it being plugged in, no lights, noise, nothing


Laptop is dead. How to troubleshoot the problem.\015\012In this post I’ll explain h ... Acer Aspire 5100 Notebook

No' it's not powering up at all now, can you help' after changinng ac-adapter & battery


Laptop is dead. How to troubleshoot the problem.\015\012In this post I’ll explain h ... PC Laptops

Toshiba Satellite Laptop Power Failure (A105-S1013 System Unit)


How handy are you with a digital multimeter? If the laptop is still disassembled, find the solder connections on the motherboard where the mini power cable enters the board from the jack. Plug the AC adapter in. Check to make sure you have the pro ... Toshiba Satellite A100-S8111TD Notebook

My on button just blinks on and off but when I push it to turn it on..nothing happens..its like it isnt getting any connection


Laptop is dead. How to troubleshoot the problem.\015\012In this post I’ll explain h ... Acer Aspire 5520-5908 Notebook

My Toshiba Satellite 2415-S205 is dead as door nail, no lights, etc. I checked power supply, power jack and connection on board, all is OK. Now what, send into the shop for repair? Ted


Here are some suggestions I compiled, some you have done, thought I would throw it out there for you...\015\012\015\012 ... Toshiba Satellite 2415-S205 Notebook

Laptop not powering - HP6710b 2.1GHz 15.4 160GB 5400 PC Notebook


Sir,TAKE OUT BATTERY, REMOVE MAINS SUPPLY, HOLD POWER BUTTON DOWN FOR 30SECS PUT POWER SUPPLY IN ONLY DO NOT PUT IN BATTERY TURN ON LAPTOP NOWPUT IN BATTERY\015\012AC power adapter\015\012How the AC adapter worksThe most commo ... HP6710b 2.1GHz 15.4 160GB 5400 PC Notebook

My HP Pavilion dv4 laptop has a humming noise


There are three components in this laptop that move. (Spin)1.Cooling Fan2.Harddrive3.CD/DVD driveA.It isn't the harddrive making the noise.Inside the harddrive case are Platters. Platters resemble a CD disk, ... HP Pavilion dv4000 Notebook

Cant get it to turn on/ panasonic CF-51 toughbook laptop.


Here are some troubleshooting hints, see if these will work for you. It is hard to knnow what to do in these situations because there is no way of telling what key combinations etc. were hit.\015\012\015\012 ... Panasonic Toughbook CF-51 Notebook

I have power out of adapter but laptop is completely dead; no lights come on at all.


Laptop is dead. How to troubleshoot the problem.\015\012In this post I’ll explain h ... Toshiba Satellite A45-S150 Notebook

My acer travel mate 5710 just blipped and closed down. NOw will not even switch on. any advice how to fix? The green power light does show for one half second when I press the button but does not function to 'on' mode.


Laptop is dead. How to troubleshoot the problem.\015\012In this post I’ll explain h ... PC Laptops

Dell latitude d500 had a power socket problem, but now resolved pc will not boot-up, drive spins-up, then nothing, completely dead display i think most likely scenario is mobo is fried, but open to suggestions how tio get this working again


Laptop is dead. How to troubleshoot the problem.\015\012In this post I’ll explain h ... Dell Latitude D500 Notebook

My loptop is an Averatec 7100. How can I test the motherboard? I took it to a computer repair shop and they said is the motherboard, I want to know how can I test it on my own.


This is more of a system diagnosis that an actual motherboard testing procedure, but since all components attach to the motherboard in one way or another it could count as a prcess of elimination......\015\012\015\012 ... PC Desktops

The screen is not going on all that shows up is a black screen with a white slash mark flasing


Laptop is dead. How to troubleshoot the problem.\015\012In this post I’ll explain h ... Dell Inspiron 2200 Notebook

Whilst in use went completly dead canot resart


Laptop is dead. How to troubleshoot the problem.\015\012In this post I’ll explain h ... HP Pavilion dv6000z Notebook

My hp compaq nc6400 doesn't turn on. the green


Laptop is dead. How to troubleshoot the problem.\015\012In this post I’ll explain h ... HP Compaq nc6400 Notebook

Laptop will not power up, hard drive light flashes twice then nothing. model is an acer 9300 about 2 years old, the only thing I noticed before this is that it would never reboot from warn, you always had to power of and start again. sometimes it wold not powere up to the on switch and I had to remove the batterey and power lead and leave it for 5 mins and try again.


Laptop is dead. How to troubleshoot the problem.\015\012In this post I’ll explain h ... Acer Aspire 9300 Notebook

HP Pavilion dv4000 won't turn on/freezes


I believe it's the DC Power Jack, that is causing the problems. This jack is where you plug your AC adapter into the laptop. (Power adapter)There can be many unseen issues with the jack, or it's mounting on the motherboard, that cannot be ... HP Pavilion dv4000 Notebook

I have a dell Inspirion 9400 and it won't start. When I press the power button, all that happens is the power light and the dvd player light comes on and about 3 seconds it turns off. Does it with and without the battery and/or power adapter. doesn't sound like anything is running.


It shows no power on your laptop but it shows you the dvd player led comes on then off. I would suggest try the following:\015\012\015\0121. Remove laptop battery, optical drive, hard drive and ram. Remove external peripheral ... Dell Inspiron 9400 Notebook

E6500 making a beeping noise - Dell Latitude E6500 Laptop


Does beeping noise happened before turning on laptop? If yes unplug the laptop from the AC Adapter. Just leave AC Adapter ON and connected to the power outlet. Check if AC Adapter is the one making beeping noise. Note: This is an issue with dell AC A ... Dell Latitude E6500 Laptop

Laptop Power Issues


My probleams is when starting pc and at that moment laptop noise create so whats i can do piz given reply ... Toshiba P25-S670 Notebook

Ground Noise Problem Possibly Attributed to Samsung Monitor


Do you have another power adapter to try? Sometimes those go bad, and are pretty cheap to test out (around $35-$50). Otherwise it is the DC-in board on your PowerBook. I replace about 2 of those per month with our clients up here on the PowerBooks ... Samsung Syncmaster 730B 17" Flat Panel LCD Monitor

Acer 5920 aspire wont start - Acer Aspire 5920-6727 Notebook


1. Remove laptop battery, optical drive, hard drive and ram. Remove external peripherals as well.2. Make sure AC Adapter is not yet connected to th ... Acer Aspire 5920-6727 Notebook

Static noise coming out of speakers


What sort of computer do you have? Is it a laptop or desktop? Many\015\012laptops have this problem and it is quite widespread in laptops. The\015\012crackling or humming noise could be a result of interference from the\015\012mains power signal. ... Dell A215 Computer Speakers
  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || www.electronic-servicing.com || Terms of Use || Contact || Privacy Policy
Load time: 0.7682 seconds