Well I really hoped for more input in this post, but I guess nobody cares or is to busy to respond to a noob. Anyways, I think that I finally hit the nail, after a few days of trial and error I received a response on other forum from another user telling me that he used donated nand with dashboard version 13604 and it worked for him very well, so after i got home yesterday, I proceeded to use the donated nand with the version indicated to make my freeboot image, then I flashed the image and stared testing the console and it went thru for 5 hours without a single freeze or fatal crash, I will continue testing it so I'm sure it's cured for good.
Well there you have it guys, It would be interesting hear from others with this same problem.