I upgraded HDD to Crucial BX500 960GB SSD (Micron).
During 3 days, there are no problem of waking up.
That is,
1) After go to standby(Push the back red button),
2) if push the "Go" button of Beosound 5,
3) it was waked up and play the music.
But Now,
within almost 30 minutes, it's waked up well.
but after 30minutes, it's not worked, It show the blue error screen.
If reset the BeoMaster 5, I can play the music.
If you solved this problem, inform me plz.