What Slots To Put RAM In?

ram slot 1 and 3   Dan ram slot 2 and 4

The general consensus is to use 2 + 4 if you need a little more clearance for your CPU fan, but 1 + 3 works just fine if that's not an issue for you Do RAM

lshw -class memory tells you firmware, cache, and memory banks in detail IIRC, before my upgrade it reported bank:1 unused , and now it tells Yes, the 2009 4,1 & 201012 5,1 Mac Pro single Xeons use RAM in adjacent pairs [unlike the old 2008 3,1 which looks like a knitting pattern

slot mortising machine 1 Try to fill 4 memory slot and check if display is coming or Try to fill 4 memory slot and check if display is coming or not Also In other words, a single stick, will not operate in dual-channel mode There is no indication that 3 sticks is a supported configuration, but