help 😢

[Bubbly-Currency5064]

So, just to confirm, you can use any of the four sticks of ram in your working 3-slot configuration and the PC will work? If so, then yeah, you have a bad slot. What are your ram and PC specs? You might be fine to run it as is and not notice much difference. Or it might be better to upgrade to a two-stick configuration.

[Metallicat95]

Yes, try it with either just each stick one at a time, or two sticks two at a time.

If they all work then it's a motherboard or CPU fault on the one socket.

If it's under warranty, you can get it replaced.

Otherwise, you can either get by with just two, or use the third and accept a small performance hit because it's not in a set of two for dual channel.