This is a mistake from the seller(he has a Lenovo thinkpad p70) and I think that it simply does not fit his laptop, because as I know, only Maxwell can be installed in the P70, this is a feature of their BIOS, and only Pascal in the P71. I wanted to clarify before purchasing whether it was working or whether the seller was doing something wrong, but I had already decided to order. tomorrow or the day after tomorrow I will have it, I think everything will be fine, because this is not code 43. but it is from Lenovo, so I will probably need to flash another vbios.