Matching ram, adding third stick Does third slot matter?

Matching ram, adding third stick Does third slot matter? ram slot 1 and 3 or 2 and 4 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 ramses 2 slot 1') to properly use dual-channel with only two sticks present Slots 2 & 4 would then be filled upon upgrade RAM Test Methodology Pt

ramses 2 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-

ramses slot BTW your board supports dual channel only in 2-4 and 1-2-3-4 slots according to the manual With different sticks, like that 8GB and 4GB you've RAM dimm slot next to the already populated one? d0rk June 26, 2021, 12:11am 3 Missing slot Pads but nothing soldered down Uploaded pic