Its ok I've sorted it. Thank god!
I followed this tut:
Over on another forum they listed how to decipher what your Xbox360 is trying to tell you when you get the three rings of light. There is a code that will flash if you hold down the "Synch" button (White button near the memory slot) and press the DVD Eject button. You will notice the quadrant of lights illuminate and each time you press the eject button you will get a different code.
It breaks down to this:
All four lights illuminate = 0
One Light = 1
Two Lights = 2
Three Lights = 3
Example:
Turn on your "dead" xbox. Wait for the 3 red lights. Once you get them hold the "Synch" button and the eject button down simultaniously. All four lights flash. (0) Press the eject button again and only one light (1) press again and all four light up (0) press again and two lights (2). Error code is 0102. compare this code to the table below to find out what is wrong with your X360. Is it overheating? Power Cord? Hardware?
The Code I got is 0102 which means the computer does not know the problem as it is not hardware or heating or anything like that. Could be dust, loose solder or static! I use a can of compressed air and my X360 IS BACK!!!!!! I do not know for how long but I played last night for several hours and had not one Hiccup. This after a whole week of the dreaded RINGS OF DEATH!!
Here is the list ( Thank You to KILLTACULAR for posting this!!)
0001 power supply problem
0002 power supply problem
0003 (not yet known)
...
0010 over heating
0011 over heating
0012 over heating
0013 over heating
...
0020 (Not yet known, possibly overheating)
0021 (not yet known)
0022 GPU Error / GPU Overheating
...
0101 (not yet known)
0102 unknown error - literally means the console does not know what is wrong. Possibly a short or cold solder joint somewhere (2 reports of people repairing this, one was removing moisture build up inside the console, the other used a hot-air rework to reflow the BGA Ram chips)
...
0110 Memory Error / Memory Overheating
...
1003 Hard Drive Error... It could be a problem with the Hard Drive itself or a problem with the internal connection to the hard drive, Try removing the hard drive and playing without it
...
1010 Hard Drive Error, Can be caused buy a currupt or missing Eprom.
...
1013 (not yet known)
...
1020 (not yet known)
...
1022 AV cable error... There is a problem with the AV cable, try using a different AV cable. (could also be a problem with the encoder chip)
...
1030 (not yet known)
Found it was a power supply problem. The brick is underneath a unit and you can't see it until you get down on your hands and knees. The plug from the wall into the brick had worked its way loose and the brick was showing a red light...pushed it back in hard and voila.
Thank fcuk for that. I shit myself then......
