More forum-rumors for you this fine day. According to this thread at the official XBOX forum, some (not all) of the Halo 3 Edition XBOX 360′s are actually shipping with cooler-running (and hopefully more reliable) 65nm Falcon processors. The first post tells you how to check if you have a 65nm processor in your XBOX 360, and the most of the rest of the thread consists of people declaring their lot # and whether they (think) they have a Falcon processor in their 360.
In case you’re wondering, this is how you check to see if your Halo 3 Edition XBOX 360 has a 65nm Falcon processor (courtesy of MRCUR of the XBOX forum):
How to see if you have a 65nm (Falcon) console
First, get a flashlight that is very bright. Then put your console upside down (HD side down). You should be looking at an black or grey piece of plastic which is the bottom vent. Shine the flashlight directly into the bottom of the console (it works best to sit the flashlight on the plastic).
Then move the flashlight to the right side of the plastic. When you look inside of the console directly below the light, you will see a large white piece of plastic. This is the airflow shroud. You can see this highlighted in this picture
Next, move the flashlight to the left a bit and look into the console again. You are looking for the large silver square that is directly in front of the airflow shroud. This piece will tell you whether or not you have a 65nm console.
90nm CPU Heatsink
65nm CPU Heatsink
(Notice that there is no heatpipe on the new 65nm CPU heatsink)
There appears to be no way to tell from the outsize which processor is being used, or if any of this is true at all. I’m sure we’ll get confirmation either way in the next day or so. Until this, consider this nothing more than rumor. We all know that the Falcon is coming anyway.