Documentation related to the Intel® Xeon® Processors
Get the Intel® Xeon® W Series Processors Specifications update to figure out if there are any issues with regards to the Peripheral Component Interconnect Express* (PCIe*).
For additional documentation, it is required to have a Non-Disclosure Agreement (NDA).
Consider that the Intel® Xeon® W Series Processors is based on (formerly codenamed Skylake) architecture so, any issue you have found with Scalable Processors is also likely to happen on Intel® Xeon® W Processors.