To fix chime and no start, simply hold the power button to turn off the MacBook and then press the power button again. The MacBook always starts normally on the second time.Other then that little issue everything works great!! And the MacBook is fully functional! I even had it fully tested at the Apple Store and it passed all there tests!
(SSD & Display not included). The item "(Logic Board/Top Case) Mid2012 15 MacBook Pro Retina 2.7ghz 16gb A1398 820-3332" is in sale since Thursday, January 25, 2018. This item is in the category "Computers/Tablets & Networking\Computer Components & Parts\Motherboards".The seller is "allllan77" and is located in Beverly Hills, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, South Korea, Indonesia, Taiwan, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Russian federation, Israel, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion.