A question about osx and Hackintosh

Hi

i have a question about osx yosemite or el capitan and Hackintosh , the question is purely curiosity

well ,let's take an Imac for example , i can find its hardware online

let's say that i built a machine with the same hardware , exactly the same hardware , motherboard , cpu, ram , video card, solid disk , psu and so on , exactly the same harware , and let's say that i flash the bios with an unufficial bios

how can the operation system (osx) detect that is not a real mac ?

seems a stupid question , but i was talking with a friend yesterday , and we did not find an answer

thanks
best regards

 

I don't know for certain but I suspect it could easily be done through the BIOS - even if not official. Not all of the code is overwritten when you flash a BIOS. Some is permanently "burned" in. You probably would have to replace the actual chip with an unofficial (read: counterfeit and illegal) one.

 

Yes, Apple tends to tag motherboards. So do some Windows OEMs.

 

Actually - all do now, if they come with Windows 10 pre-installed. It is a UEFI feature and is one of the terms of the OEM licensing agreement with Microsoft.

 

hi
what do you mean tag motherboards ?
thanks

by the way can't understand why do they protects to hard their operation system ,they could sell and make more more money
i know they do it to push to buy an apple but most desktop and laptop sold on the market they run microsoft os

 

Pretty sure he means the way I mentioned - with proprietary and identifying code permanently burned into the chipset/BIOS.

Huh? Make more money? That makes no sense. If not protected, dishonest people could make copies and use them on multiple computer instead buying a legal license for each computer.

 

I don't know how current all of this information is, but there is an author named Amit Singh that wrote a book called Mac OS X Internals. He has several web pages of information on some of these details...

Understanding Apple's Binary Protection in Mac OS X

"TPM DRM" In Mac OS X: A Myth That Won't Die

Also, according to Wikipedia's page on the Trusted Platform Module... "In 2009, Apple stopped shipping TPMs."