MB: Northbridge... where is and what is?

[Chile Mac]

Thats all the subject. To which part of my MB is named Northbridge and where is located, what is the function and how many are?
Thanks in advance for the answers.

 

[TBi]

Might help if you googled northbridge first...

The northbridge is the controlling chip between the CPU, main memory and all the other parts in the MB. You only have 1.

 

[Chile Mac]

Thank you for the response. Very usefull too.

 

[Sun Baked]

Thank you for the response. Very usefull too.

the MacBook Pro is quite similar, except it has a PCI-Express output to a GPU chip hung off the Northbridge.

The Southbridge is the I/O chip .

The MacBook looks like this.