Mixing different revisions of the same RAM?

[Odyn]

Hey guys-

Currently have a 5900x, ASUS TUF Gaming x570 wifi, and 2 sticks of F4-3600C16-16GVKC ram (gskill ripjaw v 16gb a stick). I can't find another 2 sticks of this ram to give me 64gb in total. Do I ...

1) Use another 2 sticks from some almost-the-same ram? These seem to be a revision of my sticks of RAM with the same timings, power, etc: F4-3600C16D-16GVKC. I'd have 4x 16gb ... would it be difficult to run them @ 3600?

2) Get 2 sets of the newly revised ram?

3) Find an equivalent 64gb pair? 

 

If anyone has some recommendations on any of these, let me know!

[Sir Beregond]

I would maybe try easy path first and if that second set is same XMP frequency, same timings, at same voltage, hopefully works with your existing set and you can call it a day. If that doesn't, then send it back and probably find a 64GB kit.

[ENTERPRISE]

On 06/04/2023 at 15:50, Sir Beregond said:

I would maybe try easy path first and if that second set is same XMP frequency, same timings, at same voltage, hopefully works with your existing set and you can call it a day. If that doesn't, then send it back and probably find a 64GB kit.

This. 

 

You should be just fine if the second set of RAM matches your first, you shouldn't have any issues with Overclocking. But failing that, as above, get a complete 64GB set.

 

I hope you manage to get it sorted.

[Dagamus_NM]

I've not tried to put identical kits together for years. They worked fine at their base frequency but overclocking was unstable, even at XMP. Maybe things are better now, but I would just get a single kit rated to work at the speed you want.

[pioneerisloud]

You might have difficulties getting 64GB to work on a 5900x anyway, running at DDR4-3600 anyway.  Personally, if its the same brand, same timings, same speeds, I say run it.  More RAM > Faster RAM.  If you need it, you know it.  If you're in need of 64GB of RAM, its better to have it at a slower speed than not have it at all.  And yes, the RAM will "work fine", just expect to do some tweaking on it, and don't go into it expecting 3600 speeds to work (but be happy and thankful if it does).   

[ENTERPRISE]

On 10/04/2023 at 18:21, pioneerisloud said:

You might have difficulties getting 64GB to work on a 5900x anyway, running at DDR4-3600 anyway.  Personally, if its the same brand, same timings, same speeds, I say run it.  More RAM > Faster RAM.  If you need it, you know it.  If you're in need of 64GB of RAM, its better to have it at a slower speed than not have it at all.  And yes, the RAM will "work fine", just expect to do some tweaking on it, and don't go into it expecting 3600 speeds to work (but be happy and thankful if it does).   

I must be lucky, though it did take some tuning, I run my 64GB Kit at 3800Mhz CL16 on my 5950x. 3600Mhz is however the sweet spot for the 5000 series in any case and the benefit seen above that in real world scenarios you are not really going to notice.

[pioneerisloud]

2 hours ago, ENTERPRISE said:

I must be lucky, though it did take some tuning, I run my 64GB Kit at 3800Mhz CL16 on my 5950x. 3600Mhz is however the sweet spot for the 5000 series in any case and the benefit seen above that in real world scenarios you are not really going to notice.

Nice!  It was a struggle to get my 4000 rated 32GB kit to run at 3800 on my setup.  3600 honestly wasn't too bad, but I'd figure a boost in SoC voltage would probably resolve that if it was harder with 64GB.