The auto settings just uses the SPD settings from the memory module, so i think you have to blame the memory module for containing the wrong information, and not asus.
It does happen that spd info is programmed wrong (or even faked, to pretend to be faster memory)
You could try to read your spd with: http://www.techpowerup.com/spdtool/
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Empeg Mk1 #00177, 2.00 final, hijack 4.76