I have hp 8300 elite i5 3570 Geforce GT 730. Sierra is running very smooth. No issues. Thanks you very much. However, i tried to install high sierra it would install without any issue, but would not boot. I kept getting an error like cpu unsupported. once again thanks you very much. I fixed voodoohda low volume issue by changing VoodooHDAEnableHalfVolumeFix from false to true in the Info.plist.
</dict>
</array>
<key>Noise</key>
<integer>0</integer>
<key>Vectorize</key>
<true/>
<key>VoodooHDAEnableHalfMicVolumeFix</key>
<false/>
<key>VoodooHDAEnableHalfVolumeFix</key>
<true/>
<key>VoodooHDAEnableMuteFix</key>
<false/>
<key>VoodooHDAEnableVolumeChangeFix</key>
<false/>
<key>VoodooHDAVerboseLevel</key>
<integer>0</integer>
</dict>