memory - Two RAM sticks into a four DIMM slot motherboard... which slots?

I am installing two 8GB DDR4 DIMMs into this motherboard:

Gigabyte B150M-D3H-GSM

There are four DIMM slots of alternating colors, labeled in the following order:

• DDR4_1 (gray)


• DDR4_3 (black)


• DDR4_2 (gray)


• DDR4_4 (black)

The motherboard has dual channel DDR4, so I want to make sure there's one DIMM in each channel, right?

Answer

From the page you linked to, go to CPU / Memory / Support & Downloads, select the manual.

On the fourth page it shows the numbering of the DIMM slots. Use the slots numbered 1 and 2.

For more details, see the page 11 (section 1-4).