Home Forums Tech Helproom loud noise in acer laptop when in sleep mode Forum Rules | Contact Forum Editor | Report a Post loud noise in acer laptop when in sleep mode manilva-lady 14:12 15 Sep 2015 Locked When I put my laptop into sleep mode it sometimes makes an extremely loud high pitched screeching noise a few hours later. It does not always do it so cannot understand why or if it is harmful to the laptop. tullie 16:07 15 Sep 2015 Are you saying that this noise occurs hours after you put it in sleep mode? Bazzaman 18:46 15 Sep 2015 That'll be it snoring (in sleep mode). Sorry - just could not resist. This thread is now locked and can not be replied to.