My co-worker was just telling me that he recieved an RROD this afternoon.  He called XBOX support and aparently his console isn't covered because only 2 leds are in red display making it not a "full ring".

  What should he do?

I figure maybe he can try it again and see if it comes back to life or gives him a full ring, but I dunno.  I'm just glad so far so good for mine.

I think a Half Ring of death means hard drive failure im not sure tho.

http://support.xbox.com/support/en/us/xbox360/kb.aspx?ID=907533&lcid=1033&category=hardware

2 lights = overheating

cool thanks. He he said it was only on for a couple minutes so he personally doubts over-heating is correct. If it's not overheating then I blame the Power supply. (and Wii Fit).

I thought two leds meant something wasn't plugged in correctly. Just tell him to unplug everything (from the back of the console, not the wall) and plug it all back in.

If that fails you can, you know, actually go the MS support site instead of an internet forum.

           Agree with twesterm, I think the partial leds means the cords were incorrectly conected.....ehh.

If your system shows the two red light error code, your power supply or your system may be overheating. Many users have reported that their systems would overheat, then crash and produce the red ring error when the system booted back up. Consult the Heating Issues portion of the Microsoft guide for details on dealing with heating problems.

Diagnosing heating issues
The best way to check if you have a heating issue is to unplug your console and power supply for one or two hours. Once you're certain it has cooled, turn you X360 back on. It should work fine for a while (anywhere from 15 minutes to 2 hours) and then will most likely either freeze or crash with an error code. If your X360 doesn't run after it has cooled, then it's likely that you're experiencing problems that aren't related to heating.

Heating issue troubleshooting
Check to make sure you're system is in a properly ventilated place. Putting your system inside a sealed cabinet or drawer is not a good idea, as it will likely cause it to overheat and crash due to poor ventilation. It's best to keep both the X360 and the power supply on an open shelf where it can get good airflow and cooling.

Check to make sure that both the intakes on the side and the exhaust in the back of the X360 aren't covered by any nearby objects or have inside dust, as that will also cause heating issues. If you feel that the intakes or exhaust have too much dust, clean them off by blowing them with canned air.

Try to run your console in a vertical position. The added surface area should help assist with cooling. If you're still encountering problems, use a fan to blow air onto the X360. Make sure that the fan isn't blowing from the back of the console, as that would actually inhibit cooling.

Cooling your power supply
Sometimes the X360 power supply can overheat and cause the console to malfunction. You help it cool by lifting it off the ground and allowing more air to flow over its surface. The easiest way to do this is to place two 1-2” blocks on both sides of the power supply and then place the power supply on top of the blocks so that as much air as possible can flow under it. A possible alternative to blocks is a small cardboard or plastic box you can position to span across your power supply.

http://www.wikixbox360.com/page/Troubleshooting+FAQ?t=anon

I didn't know there was a half ring of death, in that case just do what twesterm said

Wrap it in a duvet and leave it on for an hour or so. That should bring on the real RROD.