Problem with Msi Geforce Gtx 1050ti

My system: motherboard ASrock P67 extreme 6 CPU I5-2300, the power supply 450. Bought Msi Geforce Gtx 1050ti to replace my old gts 450, I set up everything correctly, turn on the computer, the system does not boot, even Bios doesn't want to load, gives an error B2. The card is definitely fixed because I checked on another computer. Bios is the latest version, there is still a Beta version which was released later in the year, but to put it like that I don't want to. The power supply, motherboard, processor, everything seems to fit. I read in the manual for the motherboard that error b2 - Legacy Option ROM Initialization, as I understand it is something related to RAM. I it is Samsung 2 for 4 with a common frequency of 1333. Could it be that this is not enough? Tried to put the palit geforce gtx 750 ti, the system issues the same error B2. Can someone faced with a similar problem, prompt.