Don’t panic.
Firstly you should understand why those lights have lit up in the
first place and it is simply due to the fact that your system has
overheated. The stylish design of the 360 doesn’t allow much room
for heat buildup, so as you play the processing units overheat and
up pop the three lights.
So, what do you do? Well, first just turn the system off and leave
it to cool down for a while, at least a few hours. Since this
problem is caused by the console overheating, letting it cool down
might solve the problem.
If this doesn’t solve the issue then you have probably burnt out the
chips completely and you will have to send the system to Microsoft
in order for them to fix it for you. You will have to wait weeks, if
not months, to get your system back, though.
However, there is nothing to stop you from repairing the system
yourself. It doesn’t require any particular technical knowledge or
experience on your part and as long as you can keep it cool and
dissipating heat efficiently you won’t have any more problems.
In order to do this, you will need to get hold of a repair guide
which includes videos as these will walk you through every step of
the process visually which is a great help in this situation.
Make sure the guide you buy has a full money back guarantee, so that
if it doesn’t work you won’t have lost out. This is a particularly
good idea for people who want to get back to their gaming pleasure
fast and/or have had their warranty expire.