https://www.intel.com/content/www/us/en/content-details/811873/shw4urm23-shw4urm2sa23-and-shw6urm23-pcn-107024-01-product-design-class-2-main-board-changes-reason-for-revision-add-shw4urm2sa23-server-add-top-assembly-number-add-efup-label-in-mainboard-and-memory-board-for-crohs-compliance.html
SHW4URM23,SHW4URM2SA23 and SHW6URM23, PCN 107024-01, Product Design, CLASS 2: Main board changes,...
Server Boards and Platforms, Product Design, Intel anticipates no impact to customers, see PCN detail for further information.