I have a nifty WAV editor program that came with Nero that indicates\nthe signal-noise ration (S/N) on the Mic input as being pretty poor\nwith the Mic boost enabled. I also see the Granted, the Mic boost is\nmerely amplifying the input, but with Mic boost enabled, I see only\nabout 35 dB S/N on the Mic input with or w/o a Mic plugged in. I see\nabout -35 dB on the recording display with the Nero wav editor with\nthe "record" mode active. Anyone see similar readings?\n\nWhen I disable the Mic boost, the noise level drops, yet one channel\nstill has about 8 dB more noise than the other. This symptom appears\nto be identical with both of the A7N8X-DLX mobos that I own so I don't\nthink it's PS noise. The box that has the more expensive PS actually\nhas more noise on the Mic input w/o any Mic plugged in. Just some\nobservations to ponder and discuss.