Need help identifying north / south bridge

Solution
What were once north bridge functions are performed, for the most part now, by the processor in this 1156 and most newer architectures. What used to be CPU/Northbridge/Southbridge is now just a CPU (with integrated northbridge functionality like memory controller) and a south bridge with no north bridge.

This is why you're not finding a north bridge on your 1156 motherboard.
What were once north bridge functions are performed, for the most part now, by the processor in this 1156 and most newer architectures. What used to be CPU/Northbridge/Southbridge is now just a CPU (with integrated northbridge functionality like memory controller) and a south bridge with no north bridge.

This is why you're not finding a north bridge on your 1156 motherboard.
 
Solution