I am having the same issue. Can someone tell me the part number for the resistor so I can order it from digikey?
Thanks in advance,
Miaclockman
UPDATE 06.30.2013
Please disregard the question about the resistor. I bought 3 new voltage limiters from Digikey (2 spares as I have replaced the board twice in 5 years). As I unsoldered the old one, it, like the other ones that you all described in your postings, crumbled in my hands. I soldered in the new piece, put everything back together and it's working like new. Thanks SO much for sharing that information as I was looking at $500 for a new system board.
I also agree that the ventilation for this board is pitiful. They should have placed some type of venting with mesh to keep out bugs and possibly a small fan - sort of like the ones that you see on computer CPUs. As a well-trained computer network analyst, I can attest that heat is the number one reason for electronics to fail. I once bought a Dell mid-tower PC and noticed that it was running hot. Postings showed others had tremendous problems with their systems overheating and shutting down.
Upon opening the case, I discovered that Dell had the fan and housing for the CPU sucking IN air rather than blowing it out. In addition, the vent for the CPU was directly below the output fan for the power supply. Therefore, the fan was pulling in already heated air and blowing it over a dual core processor! After reversing the polarity on the fan so that it would blow OUT, the temps dropped by about 20 degrees Celcius.
Anyway, I wanted to make sure to give my thanks to all of you for advice and video links to help me fix the problem in less than 20 minutes!
MIACLOCKMAN