I had one die on me, and I swear over-heating is the issue. I used to use the Intercooler, and it does work since it alters the voltage to the stock fans to drive them (as well as the three in the Intercooler) at 12V; the stock fans only run at 5.5V if I recall correctly. The Intercooler I had was the older style with a plastic connector that cause some sort of short. Anyways, did the X-clamp mod, took off the entire casing, added fans, and nothing worked. All of those mods are supposed to prevent the RROD before it happens, not really fix it! So, I bought the Arcade version, opened her up, and guess what? They modded the heatsinks. It still ran hot, so I decided not to take any chances; I mounted one fan over each heatsink and ran it from a seperate 12V power source, and it has kept cool ever since! The heatsink never gets too hot to touch, no matter what game I run or for how long. I did forget to plug the fan in once, and a mere 15 minutes of gameplay was enough to make both heatsinks too hot to touch. That can't be good, so now I'm convinced that the fans are helping. One theory is that the motherboard heats up so much that the X-clamps cause it to warp, breaking the solder contact with the GPU & CPU chips. I believe it.
Here's what I have done to mine:
Arctic Silver 5 to CPU & GPU chips
12V fan over both heatsinks
Raised the CD drive off of the GPU heatsink
Added smaller heatsinks to the other chips
Remove the X-shaped heatsink clamps and replace them with nuts & bolts
I just have to build a casing that will contain it all, but it's running perfectly fine...
Pics to show you what I did:
Here's what I have done to mine:
Arctic Silver 5 to CPU & GPU chips
12V fan over both heatsinks
Raised the CD drive off of the GPU heatsink
Added smaller heatsinks to the other chips
Remove the X-shaped heatsink clamps and replace them with nuts & bolts
I just have to build a casing that will contain it all, but it's running perfectly fine...
Pics to show you what I did: