| From: D. Hugh Redelmeier via talk <talk@gtalug.org> | So this is what I bought for $159.99: | <https://www.canadacomputers.com/product_info.php?cPath=24_311_1326&item_id=195989> Surprise: The ThinkCentre M75s gen 2 SFF seems this RAM as DDR-2400! Why??? Even though it is advertised as DDR-3200, when you read the specifications, it will only run at 3200 under XMP. <https://www.kingston.com/datasheets/KF432C16BBK2_64.pdf> FACTORY TIMING PARAMETERS • Default (JEDEC): DDR4-2400 CL17-17-17 @ 1.2V • XMP Profile #1: DDR4-3200 CL16-20-20 @ 1.35V • XMP Profile #2: DDR4-3000 CL16-19-19 @ 1.35V XMP is an Intel "standard" and cannot be used by AMD systems (like the M75s). There are hacks for AMD. For example Asus' DOCP. But a business computer line like the ThinkCentre is unlikely to use that. Now I have to return a second set of RAM. Canada Computer might not be as accomodating as Amazon. I wonder how one searcsh for "DDR-3200 RAM, no REALLY DDR-3200 RAM".