2 slot vs 4 slot ram

AMBIL SEKARANG

Mainboard Asus Prime Z370-P

Mainboard Asus Prime Z370-P ( Intel Z370, Socket LGA1151, ATX, 4 Khe Cắm Ram) ; PCI-E Gen, Gen3 ; PCI-Ex1, 3 ; SATAIII, 4 ; M.2 Slot, 2 ; RAID, 0/1/5/10.

my laptop task manager said i used 1 of 2 ram slot even though im using both slots 4gb x 2 but it reads both, what happened? - Microsoft Q&A

so my task manager said 1 of 2 ram slots used, when i hover it said slot 1: empty slot 2: 4,0GB, 1600mhz but it show 8gb of ram just fine my bro's laptop have both slot used and it said 2 of 4 slot used is this the same case just my task manager only…

Main MSI B450M BAZOOKA PLUS (Chipset AMD B450

Socket: AM4 Kích thước: ATX Khe cắm RAM: 4 khe (Tối đa 128GB) Khe cắm mở rộng: 2 x PCI-E X16, 4 x PCI-E X1, Khe cắm ổ cứng: 6 x SATAIII, 1 x M.2 SLOT.