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Thread Starter 
I've tried the low DPC version and the Cmedia without GX, but I still get stereo upmixing to 5.1...I have not checked the "re-enable 4,5.1,7.1 upmixing" option in drivers. All effects are disabled

I've checked with past threads, but none have solutions. Has there been any updates to this issue?

I'm on windows 7x64, test mode is enabled.