Question about Compaq Evo N400C Notebook

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Compaq EVO N400C PC Notebook Problem brought new battery! fully charged all night! turn laptop on within one second the thing turns off! AC works fine! new battery! old laptop! what can i do, please help?

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Your laptop should function even without a battery. Remove the battery you just bought and see if only with AC adapter, would your laptop turn on?

If not, then try removing the memory and see using a pencil eraser, clean the contacts of the memory and see if you can power your laptop with only ac

Posted on Apr 07, 2008

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1 Answer

WHAT DO I DO TO MY COMPAQ EVO N400C TO GET IT TO RECOGNIZE A REPLACEMENT MONITOR


It should have no problem ,,connect vga to vag out the back,,of evo,,should work,,also the compaq website is very helpful,,support and driver downloads for everymodel,,goodluck

Nov 19, 2010 | Compaq Evo N400C Notebook

1 Answer

The battery is fully charged and loses the charge within 15 minutes of being fully charged. Battery is 18 months old!!!!! Help


Simple fix turn on the puter on the logo screen press F10 to go into bios setup page scroll over to battery calibration on the tabs on top you will see HDD and Battery choose battery.
Now hit calibrate.
1- Recharge
2- Discharge
2- Recharge

Let the puter complete all of the sessions without interruptions.
That will calibrate your battery to charge correctly. thanks.

Nov 07, 2010 | HP Compaq Evo n610c Notebook

1 Answer

I canot clear setup password cmos on laptop compaq evo n400c


compaq website,,driver downloads and support,,,,they will have a answer for u

Nov 03, 2010 | Compaq Evo Notebook N400c

1 Answer

The new battery will not calibrate


do you know for a fact that its the right battery? if you dont then its most likely not and i would recommend going to batteries-plus.

Aug 24, 2009 | Compaq Evo Notebook N400c

2 Answers

Laptop computer won't turn on...


this is ur battery problem so just get ur baterry cheked

Jun 25, 2009 | HP Compaq Evo n610c Notebook

3 Answers

I have a compaq evo n400c needs a power on password key


If you forgot your password then you have to take your laptop to hp service centre. Because the laptop need to be disassembled before one can reset the poweron password.

Nov 23, 2008 | Compaq Evo Notebook N400c

1 Answer

Compaq EVO N400c without wireless capabilities will external wirelss card work?


http://www.everythingusb.com/hardware/index/Linksys_Wireless-G_USB_Network_Adapter.htm

This is just one source. I did a google search for USB wireless adapters. They are used by many users. Generally these units cost the same whether online or at the local Radio Shack, etc. because of shipping.

Oct 04, 2008 | Compaq Evo Notebook N400c

1 Answer

AC Power and Battery Problem.....


Sounds like the battery or possibly the charging circits themselves are the problem. Can you try turning on the laptop with just the power cord in and no battery?

Aug 20, 2008 | Compaq NC8000 Notebook

1 Answer

Evo n400c


Did you charge it for up to 8 hours?

Caring for your Compaq Evo N400c Laptop Battery You can improve the life of your Compaq Evo N400c Laptop Battery by doing the following:
When you first receive your laptop battery charge it fully for at least 6-8 hours and then discharge the battery fully by using your laptop unplugged from the mains until it runs down completely.

Repeat this 3 times to ensure your Compaq Evo N400c Laptop Battery will give you the maximum performance.

If you regularly use your Compaq Evo N400c Laptop on mains power for extended periods, removing the battery from your Laptop during these periods will extend the usable life of your laptop battery.

Apr 05, 2008 | Compaq Evo N400C Notebook

1 Answer

Powered off.


Any beeps when you turn it on? unplug everything and then plug it back in. Make sure the monitor connections are good and that you have it turned on. Again make sure it's turned on. Sometimes it's the simple stuff. Was the monitor working well before it failed? Do you have a video card?
Remove the battery, AC, count to ten and try one last time?

Jan 01, 2008 | Compaq Evo N610C Notebook

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