My laptop hp elitebook 6930p when on butt no display after few second will be off

SOURCE: how do you reset the bios on an hp elitebook

Pull the battery, cmos battery, and power cord for 10-20 minutes

SOURCE: I have forgotten BIOS password on my HP Elitebook 6930P

If the computer you are servicing has an unknown user password, 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 44).
5. Remove the real-time clock (RTC) battery (see RTC battery on page 66).
6. Wait approximately 5 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.

SOURCE: I have forgotten BIOS password on my HP Elitebook

Please discharge the CMOS battery by inserting a small bondpaper or any paper between the board and the cmos battery.

SOURCE: HP elitebook 6930p webcam not working with skype

did you try to use web cam with another software like msn and see if it is working or not , if yes try to make skype identify web cam again by going to tools menu then options then choose vedio settings it will identify your cam automatically

by the way i love elitebook its amazing piece

SOURCE: hi. i have forgotten the bios pasword and i have

the password stor in bios chip ic is 4*4 legs ....