Why wont my Dell Inspiron 546MT wake up from sleep mode?

by on November 23, 2010

Q: I have a Dell Inspiron 546MT. Operating Windows 7 64bit.
Sometimes……Just sometimes, my computer won’t wake up from sleep mode. I have to turn it off manually and back on. Dell has put me through the paces for 3 mo, always promising that the latest “fix” will do the trick. And yet……