Curumin

maybe alpha versions, i don't know. I bought this CPU from aliexpress. And can't find this CPU anywhere too.

Guys hello! I bought a 3940xm engineering processor. When I start I hear 7 beeps. The service said that you need a special bios for it. Tell me, who faced? The photo of the processor is attached.

17 minutes ago, Zoldago said:

Do you put a R2 MB into a R1?

I don't the exact difference between both Boards, but the R1 is for second gen cpu's (2xxx) and the r2 is for third gen cpu's (3xxx). So that's the reason.

Yes, 

And updated bios to A11 unlock. Many people says that this processor can run on R2.

Hello!

I have the same problem. updated m18x r1 to r2 and put the processor 2920xm I receive 7 signals. If I put  i7-3520M is turned on and working. Help, what is the reason?

Sorry for my english.