So ive been trying to find out what server my motherboard belongs too. Im trying to turn it into a content machine. So i bought this back in the beginning of 2016, i brought 2 X5550 CPUs to put into it. The X5550s did not fit, it was not LGA 1366, But LGA 1356 (I THINK). The ebay lister says it was lga 1366 but obviously that cant be true. So ive stumbled back to this projects. Please help out, this is what i know so far.... The processors supported are from E5-2400 series, LGA 1356 compatible, its a blade style server, could be from another company, and not dell possibly (not sure) Its not the "PowerEdge C6220 II" (Maybe it was its predecessor?) I have pictures of course, of you have any questions/info please let me know. This is what it is.> https://www.ebay.com/p/Dell-TC97V-Dual-Lga1366-Server-System-Motherboard-for-POWEREDGE-C6220-0tc97v/1344460066