

If you don’t hear a startup chime, you don’t hear any fan or drive noise, and there are no images, video, or visuals of any sort on your display, then your Mac isn’t turning on at all.


Fit Laptops : MacBook PRO 15″ A1286 ,2011-2012, MacBook Pro 15″ inch i7 Unibody MC721 MC723 MB985 MB986, MacBook Pro 15″ A1286 Unibody Early 2011MacBook Pro 15″ MB985MacBook Pro 15″ MB985CH/A, Macbook Pro 15″ early 2011MacBook Pro 15″ MB985*/AMacBook Pro 15″ MB985J/A, MacBook Pro 15″ MB985LL/AMacBook Pro 15″ MB985TA/AMacBook Pro 15″ MB985X/A, MacBook Pro 15″ MB985ZP/AMacBook Pro 15″ MB986*/AMacBook Pro 15″ MB986CH/A, MacBook Pro 15″ MB986J/AMacBook Pro 15″ MB986LL/AMacBook Pro 15″ MB986TA/A, MacBook Pro 15″ MB986X/AMacBook Pro 15″ MB986ZP/AMacBook Pro 15″ MC118, MacBook Pro 15″ MC118*/AMacBook Pro 15″ MC118CH/AMacBook Pro 15″ MC118J/A, MacBook Pro 15″, MC118LL/AMacBook Pro 15″ MC118TA/AMacBook Pro 15″ MC118X/A, MacBook Pro 15″ MC118ZP/AMacBookPro 15″ I7.Fit Laptops : MacBook PRO 15″ A1286 ,2009-2010, MacBook Pro 15″ MC118, MacBook Pro 15″ Precision Aluminum Unibody (2009), MacBook Pro 15” MB985*/A MacBook Pro 15” MB985CH/A MacBook Pro 15” MB985J/A, MacBook Pro 15” MB985LL/A MacBook Pro 15” MB985TA/A MacBook Pro 15” MB985X/A, MacBook Pro 15” MB985ZP/A MacBook Pro 15” MB986*/A MacBook Pro 15” MB986CH/A, MacBook Pro 15” MB986J/A MacBook Pro 15” MB986LL/A MacBook Pro 15” MB986TA/A, MacBook Pro 15” MB986X/A MacBook Pro 15” MB986ZP/A MacBook Pro 15” MC118*/A, MacBook Pro 15” MC118CH/A MacBook Pro 15” MC118J/A MacBook Pro 15” MC118LL/A, MacBook Pro 15” MC118TA/A MacBook Pro 15” MC118X/A MacBook Pro 15” MC118ZP/A.
