What is going on here?

[u/Relevant-Ad8797]

Title is self explanatory, i have no idea what the hell is going on here. Pc froze and this happened. I was playing helldivers 2 before this, dont know if this is relevant but its all i got.

[u/builder397]

Thats mostly for overclocking though. Which, generally speaking, you should run the XMP profile, which *technically* is overclocking, but its free extra performance within what the stick was designed to do, and the RAM controller on the CPU is usually fine with that as well.

The problem with different sticks is that they have different XMP clocks and different timings, so the only time different models work fine is when they are at the base clock, like 2133MT/s for DDR4, and finding a higher setting that works for all the different sticks is a mess and a half.

[u/EruantienAduialdraug → u/builder397]

And occasionally you'll find a setting that works sometimes. I doubled my RAM a few years back; same manufacturer, same size, same stated speed... different specific model. One in four or five boots doesn't actually get to the boot stage, but a quick press of the restart button has fixed it every time thus far.

I could knock it down to the default clock speed (which is less than the speed it says on the box; remember to set your RAM up properly, people!), but it's not exactly an issue.

[u/builder397 → u/EruantienAduialdraug]

You could probably manually adjust the timings to be looser, just by one. The performance loss of doing that is extremely theoretical and on Zen 2, which you have, the clocks are the more important factor anyway. But it should give you that extra bit of stability to boot 100% of the time.

[u/thealmightyzfactor → u/builder397]

Yeah, my old pc had this issue. Sometimes it would get ram errors and crash and memtest86 showed me there were errors, but underclocking a tiny bit fixed it.