Added by Thomas Catalino about 12 years ago
(posted on behalf of a customer)
For the MityDSP-l138F, I noticed the drill hole for the standoff in the Altium file (for the Industrial IO board) is acutally about 1780mils from the center of the DIMM Connector. As oppose to 2in - .2 shown in the diagram (in the carrier board design guide). Is the 20mil difference done to make sure that the L138F makes a good contact with the DIMM connector?
20mils is a mechanical tolerance for DDR2 connector placement