On a DZ77RE-75K desktop board:
1) which Ethernet port is the Intel® 82579 and which one is the Intel® 82574?
20 What is the difference between the 2 Ethernet ports?
Le_modulor, the picture bellow will show you which is the Intel ® 82579 and the Intel ® 82574 Ethernet Controllers.
Here you will be able to compare the 2 controllers side by side. http://ark.intel.com/compare/52963,32209
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