Hi-Fi B150S1 D4 Ver. 6.x RAM Compatibility

[QuinnSmith]

I recently purchased this motherboard and unfortunately the info on RAM compatibility is a bit confusing to me. It specifies “2-DIMM DDR4-2133/ 1866” but there is also a page on the website that lists it being tested with 2400 and 2666. http://www.biostar.com.tw/app/en/mb/introduction.php?S_ID=825#memorysupport

Can someone clear this up for me?

 

[DRagor]

This board has B150 chipset, and therefore max RAM speed is limited to 2133 Mhz. It may run at 2400 if used together with 7th gen CPU, but that's not guaranteed. 2666 Mhz is out of question - if such RAM will be used it will be downclocked to either 2133 or 2400.