765952045

I became not sure about my knowledge of Opteron's memory controller after I read your reply, so I checked it in AMD's official PDF about Opteron. I got this from the PDF of AMD. • Package G34 • 144-bit DDR3 SDRAM controller operating at frequencies up to 1333 MT/s (667 MHz) • Supports up to twelve (12) registered DIMMs • Supports up to eight (8) unbuffered DIMMs • On-line spare feature provides single-rank DRAM redundancy I think from this I can make sure that we can only get two memory channels. If so, there should only be 8 memory channels in a four-way Opteron server.