where to put 2 ram sticks in 4 slots | where to put 2 ram sticks in 4 slots

I have a Laptop which had 4GB RAM first so it had single channel memory mode now my laptop has 2 slots only 1 is filled so i put 1 more same speed same specs but 8GB RAM stick so i want to know that will i have dual channel memory mode for 4gb ram + 8gb…

RAM hỗ trợ. 4 x DDR4 memory slots, support up to 128GB ; Khe cắm mở rộng. 2 x PCIe 4.0 x16 slot ; Ổ cứng hỗ trợ. 6 x SATA 6Gb/s ports, 1 x M.2 ...

4 GB 1600 MHz DDR3 SDRAM (Chọn cấu hình Ram 8GB + 500.000 VND) Memory slots 2 SODIMM.