QUOTE(dustyxbox @ Jun 10 2013, 12:08 AM)

ill b happy for the help. i can solder fairly well. i do rol controller and internal led's on all my boxes. nothing shows on screen so im looking up the rrod flashing codes to find out more on the problem. could u give me an idea where the mosfet's are.
Double check your secondary error code before preceding. It needs to be a 0001 .... to effect this repair.
Secondary error is gotten by hold the Synch button in and pressing the Eject button 4 times. This very site has guides on it. Or google it.
And so you know ... a cheap, 25 watt iron won't cut it. The tools have to be better to remove and replace FETs.
The mosfets that generally cause the 0001 are just south of the Gpu chip.
I'll give you more info ... just be certain of your error code.