Will not turn on

I turn on my m11x r2, the fan starts, keyboard lights turn on, and it turns off. Screen displays nothing. I have eliminated ram(unless both sticks went bad at the same time), hard drive, and battery as not being a problem. No apparent issues when I last used it.

It used to overheat and shutdown when watching videos, more so when connected to my tv. Stopped happening after I cleaned the vents and got a cooler and did not happen again in the past 6 months. I also notice that the blue ring on the tip of my charger turns on and off when I bend the wire.

I am leaning towards needing a new motherboard but want to make sure before I purchase one.

 

That sounds to me like either a power supply problem or a bad CPU (it doesn't start or display anything about POST, beeps, etc.). I'd try opening it up again and cleaning it out with compressed air from under the keyboard (take it off) through the bottom and back vents. (My power cord also goes from no light to light depending on how it's bent, so I'm hoping that wouldn't cause any problem for you either.) Unless you can find a DC power supply with exactly the same wattage, amperes, and size to test as well, I'd probably assume that something horrid has happened to your CPU at some point. Hopefully cleaning and/or seeing what damage excessive dust could've done might point to a more pronounced problem (Haven't cleaned it out again for 6 months? I try to clean it more than once a month) So yes, you might need a new motherboard if nothing else can be helped.

 

I did do a complete tear down and used an air compressor to blow it clean. Surprisingly was not much of any dust. I think I will just get a new motherboard, I found one with a i7 for a $140 which will be an upgrade of the cpu I have now.

Does this come with everything I would need?
New Dell Alienware M11x Motherboard Core i7 680UM R2 WV01P 2 53GHz | eBay

 

Yeah, it would sure seem like it. I hope the best of luck to you and your reassembly.

 

Thanks for all the help.

 

Is it possible to buy an r2 motherboard like that and swap it into an R1 or are the chasis different enough that it will not work?

 

This will answer your question.
http://forum.notebookreview.com/alienware-m11x/710736-m11x-r3-mobo-into-r1.html