So apparently I purchased incompatible RAM for a SECOND time. 🤦🏻‍♂️🤦🏻‍♂️🤦🏻‍♂️

After going through the manufacturers extensive list, it turns out that the first model below will work, but the second will not.....

CMT64GX5M2B5600C40

CMK64GX5M2B5600C40

But there are a plathora of models that start with "CMK..." that are compatible, even with the same speed and the same capacity and XMP support... and I have no idea what that K stands for, but there isn't a single other thing is all the specs that is any different... except for that one f*ckng "K"

Man, my relationship with computers is a real special kind of love/hate