Ram XMP Profile randomly stopped working.... Ram issue?

Monkeyspaz5000 · 12 Oct 2023 at 09:32

Hey guys, this morning I got a bios message at post saying that the CPU or RAM had been changed and it then booted into windows.
Looking in windows, I could see that the ram had defaulted back to non XMP 4800mhz.

I have a 13900K and Kingston DDR5 6400Mhz Ram (2x 16Gb sticks).

All has been fine for quite some time and then today without anything changing it just stopped working.
I got back into the bios, reset it, put the 6400Mhz XMP back on and I was then stuck in a boot loop/crash situation.

Finally got back into bios and selected 6000Mhz XMP profile, which seems to now work (I'm in windows anyway).

Can anything be done here to get back to where I was at 6400Mhz?
Was this possibly just luck that it worked previously, but was on the very edge of working/not working and today just decided to 'NOPE!'.

Any input/help appreciated, thanks!

mickyflinn · 12 Oct 2023 at 10:52

You could update the bios if available but I would also download memtest and check the memory for errors.

Monkeyspaz5000 · 12 Oct 2023 at 10:57

mickyflinn said:
You could update the bios if available but I would also download memtest and check the memory for errors.

Thanks, I'll try both later on.

Dg834man · 12 Oct 2023 at 12:28

You could try bumping the voltages for the memory controller and memory just a small bit don't go mad

Tetras · 12 Oct 2023 at 12:36

No power cuts or anything? That sort of stuff can sometimes trigger the reset.

Monkeyspaz5000 · 12 Oct 2023 at 13:19

Tetras said:
No power cuts or anything? That sort of stuff can sometimes trigger the reset.

No, nothing at all.

Monkeyspaz5000 · 12 Oct 2023 at 13:20

Dg834man said:
You could try bumping the voltages for the memory controller and memory just a small bit don't go mad

Yeah, that was also in my head - increasing voltage slightly.
I'll go with BIOS update first and see what happens.

Orcvader · 12 Oct 2023 at 13:38

Another thing to try is reseat the RAM. Randomly happened to me once, and weirdly enough just swapping the RAM around fixed it...

Monkeyspaz5000 · 12 Oct 2023 at 13:43

Orcvader said:
Another thing to try is reseat the RAM. Randomly happened to me once, and weirdly enough just swapping the RAM around fixed it...

Yeah, thanks.
Done that earlier on.. took them out, plopped them back in.

JollyJamma · 20 Oct 2023 at 11:40

Monkeyspaz5000 said:
Yeah, thanks.
Done that earlier on.. took them out, plopped them back in.

Update the BIOS and manually set voltages is your best bet.

Weird that it’s suddenly unstable.

What is the exact model of RAM you have? Need the model code rather than the brand name.

Monkeyspaz5000 · 20 Oct 2023 at 11:52

I updated the bios mid-week and now it all seems fine with no issues.
Bit of a strange one like you said as it had been fine for a while and the bios wasn't multiple revisions out of date (probably 1-2).