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I just replaced the battery and power cord on my Compaq Presario 900 US Laptop, I plug in the power cord, the green light comes on, but the battery light just flashes, and I can't turn the computer on. What could be the problem?

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Try laptop without battery first to see if powers on. Could be memory issue of battery as might have been off for a while. Place battery back in if starts up. Then see if charging up and if computer switches on or off.
If fails again, unplug power and battery and open underneath the where the memory is located and try to unplug memory and plug back in. Try power supply then. If works, great! If not, you will have to take into a service center to check inside if motherboard or battery need replacing.

Posted on Aug 03, 2008

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My compaq is power on for 2 second and off , how to fix is thank you


You need to print this out-on someone else's computer. Hope it works for you!
Remove the battery and charger/ac adapter/power cord from your Compaq Presario F700 laptop, press and hold the power button for 20 seconds to discharge any residual current inside the Compaq Presario F700 . This clears your RAM and is like a hardware reset. Replace the battery and charger/ac adapter/power cord and turn your Compaq Presario F700 laptop on.

Boot in "safe mode". As it starts up press F8, the computer ask you if you'd like to start in safe mode. Highlight "safe mode" and press enter. See if your laptop is booting up ok .

If your Compaq Presario F700 boots ok, do the following,

Try System Restore first,
Start Menu->All Programs->Accessories->System Tools->System Restore. Choose the most recent date before you the encountered problem. If it doesn't work, try the next date.

If System Restore does not fix it, as a last resort, you might need to fdisk, reformat your laptop hard disk clean and reinstall OS, that usually fixes all bugs. Before going that route, try following,

Uninstall unnecessary programs and applications.

Scan with a antivirus program

Scan with a spyware/malware program

DEFRAG C:

CHKDSK C:

Clean up and repair registry problems with registry repair software of your choice

If the problem persists, did you check if it could be your Compaq Presario F700 laptop power cord or power source problem? Defective or insufficient power supply might cause error messages that are misleading. Take the battery out and power on your laptop with the charger only. Make sure your Compaq Presario F700 power jack and charger plug tip are securely connected. Did you notice the power jack loose? You can find laptop power jack on ebay. Fixing and soldering the power jack requires professional skill though. The charger green/blue LED should be on. If not, replace the defective charger. Compaq Presario F700 laptop battery charger, especially its power cord/cable, lifespan is limited and does not last forever, consider buying a lifetime warranty charger online from company like www.topmic.com

Dec 29, 2012 | ASUS K52n-a1 Notebook

1 Answer

Compaq presario v6101uswont boot not even start up screen


When you plug in the power cord is there any lightswhatsoever on the laptop, where the plug goes in or on the AC Adapter of thepower cord?

When you press the power button do you hear fans running, hard drive spinning,lights on the computer, hear any beeps or lights constantly blinking, hear theDvD/CD drive click and the light on the drawer of the DvD/CD turn on for asecond or two? If so the laptop is trying to boot or may have booted, butthe screen is not showing for some reason.

Beep tones and blinking lights tells the technicians what is going on with thelaptop and why it is not booting. Most times it's a motherboard issuewhen you hear beeps or blinking lights continuous.


Maybe you have a Static Charge Buildup. Remove the Power Cord, Remove theBattery, then Press and Hold the power button for 30seconds. After 30 seconds plug the power cord back in (leave the batteryout) and hit the power button to see if it boots. If it does, you can putthe battery back in and let it charge.

Apr 09, 2012 | Microsoft HP Compaq Presario V6101US...

1 Answer

My Presario CQ50 won't turn on even when plugged in. Battery charge light flashes, but no other lights come on. Do I need a new battery?


Most likely issue is that the cord has been damaged, or that the power jack has become loose.

First step is to remove the battery and try plugging in. If the light comes on, on the front of the laptop, your battery may be dirty or defective.
If the unit will still not power, you will need to test your cord or look into a new cord. If the cord puts out the proper 19v (give or take .5v) then the issue lies with the laptop jack. Otherwise a new cord will most likely do the trick.

-Halfs

Aug 12, 2010 | HP Compaq Presario CQ50-110US Laptop

1 Answer

My Compaq Presario V3000 laptop will not power up.


Power drain would be a better solution in this case.
1.first shut down the comp
2.unplug the charger
3. remove the battery
and after press and hold the power button for 60 seconds without any charger and the battery.After the 60 seconds replug the battery and the charger and turn the computer

Dec 04, 2009 | HP Compaq Presario V3000T Notebook

1 Answer

My laptop (Compaq Presario v2000) won't seem to boot up


Remove the battery. Plug power cord in. Turn on machine. Does it boot? Replace battery.

gurutim

Mar 17, 2009 | HP Compaq Presario V2000 Notebook

1 Answer

Laptop not powering


try a simple power cycle. Take out the battery, leave power adapter plugged in. Hold down the power button for about one minute. Then hit the power button normally this should correct the problem

Jan 23, 2009 | HP Compaq Presario 2200 Notebook

1 Answer

HP Laptop Seem to Charge but Wont Turn On


When you plugged the power cord back in did the green light on the power cord battery light up. How long have you had the cord. Make sure the power cord is working properly.

Jan 03, 2009 | HP Compaq Presario C304NR Notebook

1 Answer

My compaq presario will not power up (no power). I have swapped and tried a different power supply. No luck


Could be one of a few things. I'm assuming this is a presario laptop, not a desktop.

System needs to be restarted - Remove the battery and let the laptop sit a while (30 minutes). Reinstall battery and plug in power supply and see if it works. If not,

Remove the Battery and see if it is charged up (there are a set of green lights on most compaq laptop batteries with a spot to push to confirm the battery is charged). If it isn't charged, you very likely have a bad DC Jack connector on the laptop motherboard. If you apply pressure to the cord which plugs into your laptop (up and down, side to side) at the spot where the cord is connected (back of the laptop), see if the power light, on the front of the laptop, comes on for second. If it does, you can fix this by buying the DC Jack for your laptop model on ebay ($10) and removing the old connector and installing, soldering in, the new connector. This will require you to take your laptop apart. (note: Search the internet for the service manual for your laptop and this will give step by step directions on how to do this.)

Also, I think they do this at Best Buy (Nerd Herd) if you aren't comfortable doing ($75)

If it's not the DC Jack, it's a problem with the motherboard / CPU / Power Inverter or something else, most likely not worth your time to fix. You could sell the laptop for parts on ebay to recoup as much of your cost as possible, then buy another.

If you are slightly mechanical and are looking for a project and don't need the laptop immediately, you could buy the individual parts and replace piecemeal, based on directions from the service manual. FYI - I've picked up a few laptops for next to nothing and repaired this way {Compaq Evo n620c (CPU / DC Jack), IBM T22 (LCD Screen), Compaq M700 (DC Jack)}.

Dec 06, 2008 | HP Compaq Presario V2000 Notebook

2 Answers

Computer wont come on


well, sounds like your power cord took a dump on you check and make sure power cord light is working first i would suggest
takeing up to office depo or computer store or maybe some one you has a lap like your try the power cord on it and see if it boots up that computer or takea differnt power cord and try reboot it they sale altn. power cords for laptops (cheaper in ebay ,ubid or just type in power cords in your search engine ). i hope this helps lala linda

Jun 03, 2008 | Compaq Presario M2000 Notebook

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