3 red flashing lights

When someone say that his/her Xbox is having 3 red lights problem, It means it needs to be repaired. If you are using Cooler than it is not a cure but a prevention. You could have used cooler before acutally having the problem just to prevent your Xbox. But now you will have to either get it repaired from Microsoft (in case your Xbox's warranty is not expired, but one thing to note is that you will have to wait for at least 3-4 weeks to get back your Xbox) or you can Fix your Xbox's 3 Flashing red lights problem yourself with the help of DIY Video guide available on Internet. You can fix yourself without any technical knowledge.

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You have to take it apart, the three red rings are a sloder problem between the mother board and the processor, the "x-clamps" mnicrosoft uses to attach the cpu to the mother board are a joke, they dont provide enough clamping force. try this site, it will explain everything as i had to fdind out for my self.
http://www.instructables.com/id/Fix-the-Red-Ring-of-Deathwithout-towels/