memory slots on motherboard
What's your process for physically cleaning RAM card ...
To clean your memory slots, you need to remove the RAM modules from the motherboard.
Which RAM Slots Should You Use? - How-To Geek
Yes, you can run two dual channel RAM configurations on a motherboard that supports four memory slots. This is known as quad-channel memory configuration.
Supermicro X12SPL-LN4F Server Motherboard ATX, DDR4 8-DIMM, Intel Xeon – Network Hardwares
Upgrade your server with the Supermicro X12SPL-LN4F Server Motherboard. This ATX motherboard supports DDR4 memory and features 8 DIMM slots for a maximum memory capacity of 2TB. With its PCI-E and M.2 slots, you can expand your system's capabilities. The quad LAN ports provide reliable network connectivity.