Can't upgrade RAM

[13345555]

Hello,

I am running Big Sur on a laptop and I am trying to upgrade the RAM from 4 GB to 8 GB but I can't get the OS to respond properly. Any time I install the 8 GB stick the OS runs for about 5 minutes before it just freezes and I have to restart. I have tried two different 8 GB sticks and once I put back in the 4 GB it work fine again. I have also tested the 8GB ones in another computer. Any ideas why this would happen?

Thanks.

 

[13345555]

I am doing Xcode development on this machine so more RAM is fairly important to me. Any advice or guidance would be greatly appreciated. Thanks.

 

[antieatingactivist]

my only suggestion is to make sure the speed of the new ram is equal or faster than the ram you took out.

 

[13345555]

Ok, the 8GB RAM is only 1333 MHz and the one I took out is 1600 MHz so I guess that's my problem. Unfortunately there's only one RAM slot in the computer so I can't try another 4GB stick. I suppose I'll get a faster 8GB.