If you want to get to the motherboard, make sure you buy a tube of thermal paste first. Actually, get some right away. After all these years, replacing it is most likely overdue.
If you remove the heat sink, you don't have any choice but to clean the RSX and CELL (with isopropyl alcohol) and put new thermal paste in place. So proceed with caution when digging in there. But it's really not as complicated as it seems.
You need a torx 10 screw driver for a single screw to open the case (located above the HDD slot), but a really small flat will do the job.
[EDIT:] The thread poped on my Forum Hot Topic list, and I figured it was new. I didn't check the date of the OP before posting. Sorry about that.







