My computer all lights start flashing. i can't boot

To reset the password.
Shut off the power supply, or unplug it.
Press the start button.
Remove the battery for two minutes.
Replace battery
Re-energize power supply.boot the computer to the BIOS.

Andy,
Check for bad battery as this is the likely culprit. All laptops require a functioning battery to power up. Years ago manuf. re-designed this because people were using laptops without batteries and would get micro-surges that trashed their mainboard so most if not all laptops require a good battery in place to power up.

Let me know if that does not work for you and we'll look at some other areas

Hmm. I wouldn't have thought it had anything to do with pressing the button. It sounds more like a failing power supply or lack of current for startup. Did you make sure you plugged the power into the video card power connector (if it has one)? I know it worked ok at first but a heavier load can cause older or under-rated power supplies to fail soon after. Just a thought.

Thank for contacting Fixya, I will be glad to assist you.

Here are some steps you can try to resolve the issue:
• First, hold in your power button for approximately 10 seconds to do a hard shutdown.

• Once your Mac is shutdown, you will need to perform what is called a PRAM reset (Parameter RAM)

• Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously .

• Turn on the computer.
• Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.

• Now, hold the keys down until the computer restarts and you hear the startup sound for the third time.

• Release the keys and allow the Mac to start up.

If neither of these processes do not work, have your RAM memory checked, as this could be a factor in your G4 not booting up.

One other factor to consider, especially given consideration of the flashing light and no boot up, depending on the type of G4 mac you have, would be the power supply, which is what gives your G4 the power to boot up and function.

Hope this helps.

Regards,

-The MacTechTrainer

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 your power cord is bad if you don't get anything to happen whatsoeverwhen you press the power button. And if that's true maybe you wasoperating off the battery the last time you had it on and since the power cordis bad, it was not charging the battery so the battery is drained and the powercord is bad.

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.

I'd recommend that you use some data recovery program

It sounds like it's probably the power supply. Computers require more power to boot up than they do to keep running, so if it's fine once it gets going, the power supply may just be dying. If you have a multimeter and know what you're doing, you can test the power supply connectors to see if any of them (especially the ones leading to the motherboard) are not giving the proper voltages.

How old is the computer?

Hi...

The problem that you have are same in common, if your cd room will not boot you need to first boot your cd room, you just go to the BIOS to first boot your cd room,, when you turn on the computer you need to press the delete key (or F2) after that, use the arrow key to select, chose the boot priorities, then you need to first boot your cd room, after the cd room first boot, press F10 to save, the ok

Good luck !!!

Regards
PCmania

Make sure your power cord is pluged in and the indicator light in front is yellow (saying that it is "charging") - these cords are known to go bad quite often.

Your computer is saying there is not enough battery, or power to keep it from booting all the way up.

check the back of the power connector to see if it is loose. I have known alot of situations were, if not carefully removed, that power connector in the can free itself from the sodder on the Mother board therefore you wont be able to charge the battery nor boot up. hope that helps