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Out of the blue my CPU fan failed. CPU was hitting 100 degrees. I used my table fan to cool it until i bought a 15$ fan on eBay and fixed it. Fan failure message went away. But Still the temperature was hitting 60 to 70. PC costs are extremely high. So decided to upgrade the CPU. I have upgraded the CPU to x5690. Temperature dramatically dropped to 30s and 40s. Speed was significantly higher. My question is about memory upgrade. Earlier i had i7 960 which allows a maximum memory of 24 GB. I was using 6 x 2 = 12GB in 6 slots. Now that i have x5690 which theoretically allows you to have 288 GB, i want to increase this to like 64 GB. Can i use 4x16 GB ECC, 10600 DIMM?  
Studio XPS 9000, memory upgrade