Just to clarifyYou have just opened it and it started happening.
The two left quadrants of the Ring of Light flash red on the front of your Xbox 360 console.
The following indicator is displayed on the front panel of your Xbox 360 console and repeatedly flashes on and off:
When the consoles temperature reaches unusually high temperature the console will shutdown the CPU (processor) and GPU (graphics card unit) and the fans will run at full speed causing the noise and red lights flashes at Q1 and Q3, until the console cool down.
Sometime this may be due to the surrounding appliances or accessories of the house: Proceed to SAFETY PRECAUTIONS section below.
Things you should try Restart the console first if this happens again do the following:
your Xbox 360 console cool. You may have to wait several hours for your
console to cool enough. Don't turn on your Xbox 360 console when the
console is hot.
that your Xbox 360 console is well ventilated by making sure that the
console is not in an enclosed space. After your console displays two
flashing red lights, you may hear the fans operating even when the
console is off. This helps cool down the console more quickly.
the two lights continue to flash red after you try steps 1 and 2,
contact Xbox Customer Support. For more information about how to
contact Xbox Customer Support, visit the following Xbox Web site:
Don't block any ventilation openings on your Xbox 360 console.
Don't put your Xbox 360 console on a bed, on a sofa, on a carpet floor,
or on any other soft surface that may block ventilation openings.
Don't put your Xbox 360 console in a confined space, such as a
bookcase, a rack, or a stereo cabinet, unless the space is well
Don't put your Xbox 360 console near any heat source, such as a radiator, a heat register, a stove, or an amplifier.
If the problem still persist:
is this the first time this had happened?