I have a HP/Compaq 6510b laptop computer and it will not turn on...I have the charger plugged in and the only thing happening is the green light periodically flashes...Is the battery bad?

Did you get the charger with it? Charge the battery first before you use it.

Something is wrong with your video or graphics card.
HP Desktop PCs Computer Does Not Start and Emits an LED or Beep Code

I’m happy to help further over the phone at https://www.6ya.com/expert/james_d4449ffdf318a2c3

HP Compaq 6510b PC Notebook

HP Notebook PCs - Overview of Recovering the OS or Reinstalling the Operating System (instructions to do every type of recovery on any operating sys.): http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=115&prodSeriesId=3355650&prodTypeId=321957&prodSeriesId=3355650&objectID=c00006110

Resources for HP Compaq 6510b Notebook PC (all info including the manual, drivers, guides, for your comp): http://h20000.www2.hp.com/bizsupport/TechSupport/Home.jsp?lang=en&cc=us&prodTypeId=321957&prodSeriesId=3355650&exit=product_series_oid&jumpid=reg_r1002_usen_s-001_title_r0001&lang=en&cc=us

all info from a search for 6510b on hp.com

try this: Make sure the battery for the notebook is out in step 8


the procedure to reset the CMOS/BIOS is in the maintenance and service guide on page 46.

Follow these steps to clear the password:
NOTE: These steps also clear CMOS.
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4. Remove the battery (see Battery on page 48).
5. Remove the real-time clock (RTC) battery (see RTC battery on page 68).
6. Wait approximately 30 minutes.
7. Replace the RTC battery and reassemble the computer.
8. Connect AC power to the computer. Do not reinsert any batteries at this time.
9. Turn on the computer.
All passwords and all CMOS settings have been cleared.

Do you mean HP Compaq 6510b ?? its a Notebook

Hi, Actually, the problem here is you don?t have any options in windows XP to increase the brightness without using keyboard. HP does not provide any utility with the OS as it is OEM. Try this · Click on start > Click on control panel..... · Click on power options.... · Click on " Change settings plan "..... · Adjust the brightness and save the plan..... And exit... that should work.... OR Replace the keyboard and get the all things working

you can get your answer here .

If that would be the case, your laptop's motherboard is faulty. It needs to be replace.

please look at this
you can count the pin number on your laptop and buy the correct one..
hope it helps!

A half volt will not make any difference. Sounds like the power supply is malfunctioning. Start by trying a different one. Keep in mind that you may have fried the new motherboard by using a faulty power supply. Popping sounds indicate a short or loose/exposed wires, and are never good with any electrical device, especially a laptop since they are sensitive to power fluctuations to begin with.