Powers on for 5-6seconds then beeps one time and shuts down

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
5. Remove the real-time clock (RTC) battery
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.

CPU dead. Have to change it.

Hi there, your display needs resetting back to standard resolution, please follow my guide on how to do this -

http://www.fixya.com/support/r6784945-playstation_3_no_display

Thank you for using FixYa

try rebuilding the database and the file system in recovery consol

to get to the recovery consol press and hold the power button when ps3 is in standby mode(red light) till you hear a double beep. sometimes the ps3 does a beep then another beep and goes back into standby thsi is fine just release the power and quikly press and hold it again till you get double beep.

like on my 80g system it goes like this

ps3 standby...press hold power.......beep .........beep........stanby again....release and hold power again.......beep .........double beep...release power now you should be in recovery menu.

5 beep error means that the waste ink tank is full. You can reset the counter to make it print by doing the following: You have to be exact. If you make a mistake in any of it, just go back to the beginning and start it all over.

1.Unplug the power cord from the printer

2.Hold down BOTH the POWER and RESUME button at the same time and then plug the power cord back in. Keep holding down the buttons until the printer finishes its powering up noises.

3.After the printer is quiet, release the POWER and RESUME buttons. Then hold down the RESUME and CARTRIDGE buttons at the same time with one hand, and press the POWER button with the other. KEEP HOLDING DOWN the RESUME and CARTRIDGE buttons until you hear 2 beeps. They will come quickly together and one beep will be longer than the other. Listen carefully, as they are not very loud.

4. Once you hear the 2 beeps, release both buttons.

5. After both buttons have been released, then press the CARTRIDGE button 15 times. You will hear a beep each time it's pressed.

6. After you finish pressing the cartridge button 15 times, then press the RESUME button one time. The printer will beep and shut off.

7. Turn the printer back on by pressing the POWER button. The printer will work fine now. The waste ink will have been reset to 50% full.

have a jvcgr-smx750 . It was working fine but recently I powered it up with battery, without battery and just ac power cable. Both times it does power up and shows the screen for about 2 seconds, beeps, and then shuts off. Please help

Your disply was broken replace it & then solve it

The beep code is signifying either improperly seated/ bad ram or improperly seated/ bad video card. Since you replaced the RAM I would say it would be a bad video card. Replace & reboot. Hope this helps & please remember to rate my answer. Thanks.

Do a system restore to a point previous to the power failure shut down. It sounds like the abrupt shut down glitched the system.