Why are we putting RAM sticks into 2nd and 4th slot first?

Issues with bottom RAM-slot MBP 2012 - MacBook Pro 13 ram slot 1 and 3 or 2 and 4 1 Because that's the way the slots are wired 1 & 3 on one channel, 2 & 4 on the other channel 2 Why 2 & 4? To prevent any possible ram slot 2 and 4 Usually, the pairs are slots 1 and 3 for the first channel and slots 2 and 4 for the second channel Sometimes, motherboard manufacturers

ramses slot DIMM Population Rules · Each CPU can support a maximum of eight DIMMs · The DIMM slots are paired and the DIMMs must be installed in pairs (0-1, 2-3, 4-5, and 6-