Few months ago my PSU burnt out. Then my USB and sounds stopped working. For the sound, it keeps on saying "no mixer devices".
What does it mean?
built in mobo sound or external card?
check drivers, if necessary, reinstall drivers.
Logging Off. "You have 2,631 messages stored, of a total 400 allowed." don't PM me.
Either conflict/software driver problem.. or your onboard sound chip has ...
When the PSU dies it can go with a voltage or current spike, which might damage components.