Xeon e3-1270 won't start on asus P8B75-M, where to dig?

Question

Iron

Good afternoon! There is a mother asus P8B75-M worth intel i3-3220 processor. I decided to replace the processor with a xeon e3-1270. Many wrote that it starts / starts. I updated the BIOS to the latest 1701. I installed the 1270 processor, the computer starts up, but the BIOS squeaks an error for a long three short ones, after two seconds another short one. Does not display a picture on the screen. Looks like a bug on the video card. I unhooked the video card, unhooked the hdd and ssd too, tried to start only the processor in the mother with RAM. Constantly the error beeps long three short and short two seconds later. Coolers are spinning. back i3 put everything works. Maybe there are compatible bios firmware? Someone tried to run in such an assembly? In those. support asus wrote silent so far.

Answer 1

And it shouldn't be on this motherboard. For such a processor, a server motherboard is needed.

Answer 2

You yourself provided a list of support in which your processor is not.

Answer 3

video card error

The motherboard is looking for onboard video, which the e3 does not have.