DIMM number and slot installation order

dimm slots for ram,To cancel a driving licence slot, follow these steps:

Dual In line Memory Module : The DIMM slots were introduced to cater for multitasking in computing devices

slot matic The advanced PCI-E Steel Slot packed with solid cover that prevent any signal interference with graphics cards - 4 x DDR4 DIMM Slots

slot pay small small have you tried checking the socket and Reseating your CPU as if only a single slot is working then my first suspect would be bent Pins in the