A beeping sound, along with a little white light blinking on/off on my MacBook Pro?

My MacBook Pro is making a loud beeping sound along with a little white light blinking on and off at the bottom of the keyboard. None of the keys are working so I do not have the ability to shut it down. Any idea how to stop the beeping sound?

Apple One to One is a paid service which has to be purchased when the computer is purchased.
http://www.apple.com/retail/learn/one-to-one/
Appointments at the Genius Bar however are free (evaluation, troubleshooting, etc) - repairs would have to be paid for if out of warranty.

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The DC jack is loose, took the laptop apart, pressed down on the dc jack to hold it in place, and stuck the power cable back in. Tried to wiggle the cable around to see if the jack is bad. But it feels pretty solid, it's just the housing holding the dc jack in place that's broken.
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I already encouted this problem yesterday and I want to share this information on how I was able to fix this issue where in the dc jack blinking repeatedly and the laptop wont turn on. This issue is resulted due to overheat so laptop automatically shutdown and results to some kind of hibernation.
1. First you need to dissamble your laptop (compaq cq60). To clean the exhaust fan. I cleaned it because it was very dirty. I used my laptop for almost five years. If you dont know how to dissamble your laptop, you can check the tutorial from youtube. Just be very careful.
2. After Removing all the parts you can use a brush to remove all the dust inside your laptop. After cleaning all the dirt inside the laptop you need to let the motherboard cool for 1 to 1.5 hrs.
3. When you put the dc jack dont put the battery. So once you plugged the DC jack you can see if the light beside the jack still blinking or steady.
4. Once the light is steady., you can now power on your laptop. and a message will appear that your laptop overheated.
5. You can use cooling fan to prevent from heating.
6. Clean the parts inside your laptop every half year. to remove dust that cause the exhaust fan not to work properly.
Now I was able to use my laptop again.
Best Regards to All!
Algerico

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Hi,
My powermac G5 running leopard, 1gb ram, was running fine on friday and i left it running over the weekend. when i returned on monday it had powered down and the little white light was on permanently (ie not slowing flashing). I pressed it and nothing happened. i pressed and held it and nothing happened ( the light stayed on and the computer remained powered down). so i turned the computer off at the mains, after about a minute the light went off, i plugged it back in and it made no difference, the light came back on and computer remained off and pressing it did nothing.
i unplugged the mac for about 15 minutes, plugged it back it and the little white light came back on, pressing it did nothing and the computer remained off.
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please someone help me.

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Looks like a RAM issue.
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x000000000000000000000000000000000000
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x000000000000000000000000000000000000

A beeping sound, along with a little white light blinking on/off on my MacBook Pro?

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