2 X 2 sets of same DDR5 ram. Which sockets per pair?

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When I installed the memory. I populated all 4 slots. I put the first pair in slot A1&A2. The second pair in slot B1&B2.

Should I have the pairs in this formation... Or should I have gone pair 1 in A1&B1 and the second pair in A2 & B2.

Both are matching 2x(2x16GB) sets to form 64GB purchased at same time. Can't remember exact timings. But they are G-Skill 6400Mhz currently running at 5000Mhz. Above this, they become unstable. The XMP timings were untenable running 6400Mhz at 64GB.

Is there a best slot configuration for each pair? Does mixed same pairs matter? Any advise is appreciated.

Thanks for any advise.
 
DDR5 can't usually run all 4 slots at full speed on either AMD or Intel platforms, the 5000MHz you are getting is about all you can expect.

Normally the matched sets should go in first pair A2 and B2, second pair in A1 and B1, but you'll need to read your motherboard manual to be certain on this.

The reccomendation would usually be to return or sell your current kits and purchase a 64gb kit with 2x 32gb sticks if running at 6400MHz is important for you.
 
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Thanks.
The motherboard manual is not the clearest on this. It eludes to populating in the following order... A1 B1 and A2. But is not clear about if this is best configuration for each pair. Funny it only shows 3 sticks in the last illustration.

Regarding speed, I'd come to same conclusion as this. To be honest, I'm a bit ****** to have spent the extra on the faster ram... I'll just leave it running stable at 5000Mhz. I'm not a massive overclocker, so I'm not chasing every clock.

I usually build a new PC every 8 to 10 years with the newest top tech. Just sometime this bites you in the ass as there's not much info to help untill it's reasonably well adopted...

Filling all the modules with high speed ram has been a problem for such a long time now that I'd forgotten when I built this one.

I guess the question here in the back of my mind is... Can I improve the memory frequency marginally to make better use of what I paid for if I correctly pair the matched pairs in the correct slots?

Ta.
 
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