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It is a known problem of the Sandy Bridge based system.
Take a look installation stops with "can't detect last level cache" and try to disable BIOS option "Max CPUID Value Limit"
didn't find that option in my BIOS/UEFI, but resetting it to defaults and changing the settings I made (SATA3/USB3/LPT/RS232 off, NX on, same as before) helped.
Strange, but it works
I had the same problem 2 days ago.
After cut off （or cut down---sorry ，I am very poor standard of English ）the line of monitor、mouse、keyboard................It means using console port to operate the Server..
The problem is solved