Ryzen 3900 , 32 gb , 2 x 16 or 4 x 8 sticks

peter224722 · 6 Nov 2019 at 17:20

Is there any advantages / disadvantages going dual or quad channel with the Ryzen 3900x or is it getting higher density ram sticks that may be a disadvantage ?
ALSO
If I go for 2 x 16 gb sticks can I get a matching pair of sticks ( after ) and go 64gb , OR is it unwise to get 2 sets of kits ?

Drumroll · 6 Nov 2019 at 18:31

8GB sticks are more "common" and due to the range available, pretty good low timmings kits available, which is nice for AMD processors.
I would say it's easier to overclock using only 2 sticks rather than 4, but I'm running 400MHz over the original speed, 4 sticks, and no problems.
Going 2 sticks would allow you to install another 2 later on, but unless you have a very specific use for your PC, I can't imagine, at least for few years, the need for more than 32GB. When the times comes, more likely the new system would be DDR5, I guess.

peter224722 · 6 Nov 2019 at 18:49

MrPotato said:
8GB sticks are more "common" and due to the range available, pretty good low timmings kits available, which is nice for AMD processors.
I would say it's easier to overclock using only 2 sticks rather than 4, but I'm running 400MHz over the original speed, 4 sticks, and no problems.
Going 2 sticks would allow you to install another 2 later on, but unless you have a very specific use for your PC, I can't imagine, at least for few years, the need for more than 32GB. When the times comes, more likely the new system would be DDR5, I guess.

So did you get these :- https://www.overclockers.co.uk/team...3200mhz-quad-channel-kit-black-my-094-tg.html
My i7 2600 as 16gb of ram , which in the days of DDR3 was a lot of memory for 2012-ish , but now it looks like 32gb is the sweet spot for most systems .

Drumroll · 6 Nov 2019 at 18:58

Bought the 8pack 3200MHz 2x8GB together with my previous 1600X. Few months ago the price was nice, got another 2x8GB kit.
Never had issues using the B-350, B450 and now X570 chipset, and now running at 3600MHz, same voltage as 3200MHz, but using the timmings of the 3600MHz kit.
I believe the Ryzen 3000 series isn't as picky about RAM, as the 1000 series. Or the X570 chipset somehow helps?
The reason to get the 8pack kit first was because of the Ryzen 1000 series, being a Samsung B-Die. As I had one kit, was better to just add another, rather than sell at a loss and get a 32GB kit.
To be fair, it's a very good kit, few times played with the timmings before (not with the X570 yet), and was able to shave a bit.
Just waiting some free time and my try to optimize the timmings.

peter224722 · 6 Nov 2019 at 20:02

MrPotato said:
Bought the 8pack 3200MHz 2x8GB together with my previous 1600X. Few months ago the price was nice, got another 2x8GB kit.
Never had issues using the B-350, B450 and now X570 chipset, and now running at 3600MHz, same voltage as 3200MHz, but using the timmings of the 3600MHz kit.
I believe the Ryzen 3000 series isn't as picky about RAM, as the 1000 series. Or the X570 chipset somehow helps?
The reason to get the 8pack kit first was because of the Ryzen 1000 series, being a Samsung B-Die. As I had one kit, was better to just add another, rather than sell at a loss and get a 32GB kit.
To be fair, it's a very good kit, few times played with the timmings before (not with the X570 yet), and was able to shave a bit.
Just waiting some free time and my try to optimize the timmings.

So I guess that answers the second part of my question , can you buy 2 kits of 2 memory chips instead of buying a 4 chip kit without problems .
I`m new to AMD and so far this is what I`m thinking of getting , Gigabyte AORUS MASTER , Ryzen 3900x , and was looking at the corsair Dominator Platinum RGB 32GB 3200GHZ kit , 4 x 8 or 2 x 16GB versions.
Got a new and shiny Lian Li Dynamic Xl and corsair RM850x psu and 6 x rgb fans and controller just waiting for the motherboard and chip.

Drumroll · 6 Nov 2019 at 20:06

If buying at the same time, no issues. Mine came with a "facelift" heatsing, but exactly the same timmings and voltage.
If going for insane overclock, the 4x8GB would be an extra reassurance that would be 100% optimized as a kit, but I don't believe you'll have any issues about going for 2 kits of 2x8GB instead of one kit of 4x8GB.

Drumroll · 6 Nov 2019 at 20:08

Brand wise, or at least the model mentioned, I can't tell you if there's better options around, but I would at least get a 3200MHz kit and low timmings, or the possibility to run them at 3600MHz. Higher than that, I don't think it's worthy the extra cost.

peter224722 · 6 Nov 2019 at 22:14

MrPotato said:
Brand wise, or at least the model mentioned, I can't tell you if there's better options around, but I would at least get a 3200MHz kit and low timmings, or the possibility to run them at 3600MHz. Higher than that, I don't think it's worthy the extra cost.

the Corsair Vengeance RGB PRO White 32GB 3200 MHz DDR4 Quad Channel Memory Kit is CAS 16-18-18-36 , when I look at the 3600ghz version it is £185.99 to £262.49 with CAS 18-19-19-39

andy_mk3 · 6 Nov 2019 at 22:29

peter224722 said:
dual or quad channel with the Ryzen 3900x

Note that AM4 is dual channel only, 2x or 4x slots used are both dual channel.

I run 4x 8GB G.Skill RAM with my 3900x. You definitely trade-off some overclocking abilities but it runs at 3600 with some tighter timings perfectly well.

peter224722 · 6 Nov 2019 at 23:29

andy_mk3 said:
Note that AM4 is dual channel only, 2x or 4x slots used are both dual channel.

I run 4x 8GB G.Skill RAM with my 3900x. You definitely trade-off some overclocking abilities but it runs at 3600 with some tighter timings perfectly well.

So what do you think of the Gigabyte X570 Aorus Pro ? , I think my idea of the Gigabyte AORUS MASTER may be a little overkill, for I will never use the wifi because I`m hardwired ?
i'd rather go a little overkill, than get a board which going cheap will give me problem in the end.
I don`t know where I got the dual and quad channel from , but I've been reading about all the chipsets from AMD and Intel , so I guess I saw it on one of them and did a bit of cross wiring.

Drumroll · 7 Nov 2019 at 00:21

AMD only dual channel. Unless going TR.
I'm using the Asus X570-f and it's fine. Wouldn't go to a bare naked board, but won't be willing to pay more than I paid for mine.
Owned a B350-f before and was solid. No problems running the RAM at the rated speed, or any cap on CPU boost.
I understand Asus isn't loved by many, but at least for motherboards, I'm getting on fine with them.

peter224722 · 7 Nov 2019 at 00:53

MrPotato said:
AMD only dual channel. Unless going TR.
I'm using the Asus X570-f and it's fine. Wouldn't go to a bare naked board, but won't be willing to pay more than I paid for mine.
Owned a B350-f before and was solid. No problems running the RAM at the rated speed, or any cap on CPU boost.
I understand Asus isn't loved by many, but at least for motherboards, I'm getting on fine with them.

Got no problems with asus , my motherboard I'm using now is a Asus maximus 1V gene-z / gen3 and not had any problem with it over 8 years , other than when I OC it so badly that the BSOD crashed .
Asus products can be really good or really bad , but most of the time not user friendly , but advanced.

What's a bare naked board ?

TroyMclure · 12 Nov 2019 at 14:50

Hi Guys, what do you think of the chances of running the 4 x 8gb dark pro 3200 c14 1t modules at either 3200 c14 1t or 3600 c16 1t without issues? (on a 3600x, gigabyte aurus elite)

djay · 15 Nov 2019 at 12:15

TroyMclure said:
Hi Guys, what do you think of the chances of running the 4 x 8gb dark pro 3200 c14 1t modules at either 3200 c14 1t or 3600 c16 1t without issues? (on a 3600x, gigabyte aurus elite)

I have 4x8gb of the 8Pack Dark Pro and can run both of those configurations you mention.

Currently mine are at : 3200 14-14-14-28 1t fine. Although I have just been reading that when using 4 sticks the Command Rate will go to 2t? I'm 100% sure mine reports as 1t within CpuZ.

MrPils · 15 Nov 2019 at 16:27

Depends entirely on your motherboard and the quality of your 2 x 16gb sticks (budget basically). If you can find a good daisychain motherboard then 2 x 16gb will oc really well, only just short of 2 x 8gb and ultimately faster due to having dual ranks. On a T-Topology though 2 x 16gb can be terrible, assuming the board is well designed 4 x 8gb can come pretty close to 2 x 16gb speeds.

4 good 8gb sticks will be far cheaper than 4 equally capable 16gb sticks unless you're talking unbinned Micron E die. My mate has 2 x 16gb Crucial 3000LT C15 @ 3733mhz 16-19-8-17-1T GDM enabled on his Strix 570-F @ 1.375v - that was a ridiculously easy oc, its super fast and his kit cost him £135, so 2 x 8gb B-Die money. CPU won't do 1900mhz IF, not a memory limit...