I bought a S5520HC one of the reasons I choose it over other boards was the pcie-x16 slot, the slot mentioned in the official intel product spec. sheet. It arrives today so I downloaded the manual (service manual it turns out) and it says the slot is "x16 Mechanically, x8 Electrically" anyone know which is correct?
Intel® Server Board S5520HC Product Specifications
One PCIe x16 Gen 2.x
https://ark.intel.com/products/36599/Intel-Server-Board-S5520HC
Service Manual
Intel® Server Board S5520HC
One PCI Express* Gen 2 slot (x16 Mechanically, x8 Electrically)
https://www.intel.com/content/dam/support/us/en/documents/motherboards/server/s5520hc/sb/e39527008_s5520hc_s5500hcv_service_guide.pdf
Intel® Server Board S5520HC Product Specifications
One PCIe x16 Gen 2.x
https://ark.intel.com/products/36599/Intel-Server-Board-S5520HC
Service Manual
Intel® Server Board S5520HC
One PCI Express* Gen 2 slot (x16 Mechanically, x8 Electrically)
https://www.intel.com/content/dam/support/us/en/documents/motherboards/server/s5520hc/sb/e39527008_s5520hc_s5500hcv_service_guide.pdf