Intel has made such a complicated product line it's really difficult to figure out what is and isn't affected. As per the Lenovo update mentioned elsewhere in

Intel has made such a complicated product line it's really difficult to figure out what is and isn't affected. As per the Lenovo update mentioned elsewhere in this thread: "*3 – (Broadwell E, H, U/Y; Haswell standard, Core Extreme, ULT) Symptom: Intel has received reports of unexpected page faults, which they are currently investigating. Out of an abundance of caution, Intel requested Lenovo to stop distributing this firmware." So far as I can figure, Xeons are covered by "Haswell standard". Core Extreme was those ridiculously overpriced i7s. ULT is the "Ultra Low TDP" chips. https://en.wikipedia.org/wiki/Haswell_%28microarchitecture%29#Server_processors https://en.wikipedia.org/wiki/Haswell_%28microarchitecture%2... It looks like from the desktop and mobile processor fields, if there is anything special about the core they put a suffix on denoting it, so Xeon may well classify as "Haswell standard"?