do all motherboards have 4 ram slots: Kích thước bo mạch chủ | So sánh ATX, E-ATX, Micro-AT .... How to Enable Dual Channel RAM – TechCult. What Slots To Put RAM In? [For 1, 2, 3, and 4 Stick Setups].
Despite the smaller form factor, most (but not all) mATX motherboards still feature 4 RAM
slots and 2 full-size
PCIe slots.
Note:
RAM slots on most motherboards WITH 4 slots have the marking A1, A2, B1, and B2. ... To set up dual channel RAM, you need to install two identical memory modules into your computer’s memory slots.
Motherboards also have form factors that determine their physical size and the number of RAM
slots available.