Can anyone tell me why do my right ram slots do not work

Looks like the second slot is broken Maybe there's just some dust in there

2 slot *Wi-Fi module Users can easily achieve the latest BIOS support with a USB and power supply, No CPU, RAM or other components required

rambo 789 slot How does RAM work? However, if the user is working with multiple applications at the same time, even 8 GB of RAM might not be enough and performance will

ramesses book slot demo 2 x 10 GE SFP+ Slots 4 2 x 10 GE SFP+ FortiLink Slots 5 8 x GE SFP Slots Not available for FortiGateFortiWiFi 40F, 60E, 60F, 80E, and 90E series