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Compaq presario laptop blinking power button

My compaq presario laptop will not boot up -- I only geta blinking power button. I have removed the battery and tried to discharge. Please help.

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Posted on Jun 21, 2008


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Compaq presario V5000 laptop blank screen

Does the hard drive light blink like there is activity? It sounds like your laptop is not posting. Unfortunately on a laptop if it fails to post it is likely the motherboard..

I would verify first that you Cannot get the external monitor to work by using the function + Keys on your keyboard to enable the secondary display (Usually something like FN+F4) FN being the key on the lower left of your keyboard between ctrl and alt typically..

If you cannot get it to display, Try an ESD Discharge.. Basically unplug the power brick from the laptop, Remove the battery and try turning it on.. While trying to turn it on contact your fingers on the metal prongs that protrude from the where the battery was on the laptop. This will discharge any built up static electricity from the laptop. Try hooking it all back up and booting.. Good luck

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My Compaq Presario F500 running Vist Home Basic will no longer boot the operating system after I completed an advise BIOS update from HPs websit. I receive an error code stating that the system is cor


Try this >>>>

Power down your Compaq Presario F500 notebook computer. Remove the unit's internal battery from its housing compartment.
Use a screwdriver to unscrew and remove all of the screws from the bottom panel of your Compaq Presario F500. Use your hands to lift off the bottom panel, revealing the inside of the notebook computer.
Look for the CMOS/BIOS chip: It will be located in the center of your computer's motherboard, which is itself located in the center of the case.
Remove the small battery from its housing compartment on the CMOS/BIOS chip. Then, press and hold the "Power" button on the laptop's case for a few seconds. This will completely discharge all electricity from the device.
Replace the CMOS/BIOS' battery. Place the bottom panel of the notebook computer back on and screw it back into place. Place the Compaq Presario F500's battery back into its housing compartment and press the "Power" button to turn it on. Your CMOS/BIOS will now be completely reset.
Good luck and please let me know how you get on!!!!


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2 Answers

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



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

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maybe you have change the keyboard , it is failure

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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.

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Hello David,

Please remove the battery of laptop.

Press the power button for 15 minutes and it will discharge the capacitors of the laptop.

Repeat the step 4 to 5 times and then insert the battery and connect the charger.

Laptop will be boot up.

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I'd try messing with the memory. Try booting one single stick in each of the slots.

I've noticed that this happens pretty frequently with certain hp / compaq models.

If you've already tried that you can try removing the cmos battery for 5 minutes but aside from that the motherboard has probably gone out :(

I hope it's under warranty!

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try pulling the hard drive out. boot the unit if it boots your drive is the problem. if you have replaced the battery and cord . also first try removing the battery and plug into wall and boot unit. if it boots up then you may want to see if anything is fried that connects to the battrery.

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Remove the power cord. Remove the battery. Hold in the power button for up to 60 seconds to discharge the laptop. Try booting it.


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