Opteron's Supporting DDR400 Memory

Hey guys...Thought this little tidbit might shed some light on what memory you should be using. I recently bought some DDR400 REG memory from Corsair and thought it was causing all my system crashes so after I upgraded my powersupply to a 550 from a 430 I figured out that my vid card was at fault. My AMD rep verified this info so I think its pretty much gospel:
http://www.anandtech.com/IT/showdoc.html?i=1935&p=2
Just recently, the x48 parts were launched, and with them, the Opteron gained support for DDR400 memory. Support for DDR400 has trickled down to all members of the Opteron family, but only certain revisions of the CPUs support DDR400. To tell whether or not a CPU has DDR400 support, you will have to look at the last two digits of its part number. If they are “AL”, “AK” or “AM”, then the CPU is a Rev C0 CPU and it supports DDR400. If the part number ends in “AH”, “AG” or “AI”, then the CPU is an older revision and does not support DDR400 memory.
I'm just glad my rev was AL

My opteron is a B3 (ends with AH) and runs DDR400 fine.

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