Hello everyone. I set up a system by pairing the Ryzen 7900x3d processor with the Asus ROG Strix B650E-E motherboard.

I need ram recommendations for this motherboard. I generally prefer Gskill as a brand.

There are some Gskill RAMs in the QVL list of the motherboard. But I especially had my eye on an 8000 MHZ ram kit. G.SKILL F5-8000J4048F24GX2-TZ5RK model (2x 24GB) 8000Mhz ram seems to be supported in the QVL list.

If I buy this ram, can I enable XMP and use it without any problems?
Everyone recommends 6000 or 6400mhz ram. If this motherboard can run 8000Mhz by enabling XMP (which ASUS added to the QVL List), does it make sense to choose this ram?

View attachment 2649798

Only the asus gene is able to reach 8000mt/s boot to boot stability on asus..... I had previously a X670e-f and sold it cause the max stable was 7400.... not worth it in 1:2 mode comparing to a uclk:mclk setup.
Also, all the 24gb dimms are M die instead of A die, in AM5 setups A die is prefered
I wouldnt recomend gskill modules this gen, the heatspreaders suck pretty bad ( i have one 7600mt/s gkill kit with iceman copper heatspreaders due to bad temps even at stock settings ) now this kit is running at 1,6V at 30/40 degrees without issue
If you are interested in trying 1:2 mode better change motherboard to the gene ( if you want asus )

 

Only the asus gene is able to reach 8000mt/s boot to boot stability on asus..... I had previously a X670e-f and sold it cause the max stable was 7400.... not worth it in 1:2 mode comparing to a uclk:mclk setup.
Also, all the 24gb dimms are M die instead of A die, in AM5 setups A die is prefered

The models in stock that I can purchase are:

G.Skill 48GB(2x24) TZ5 Neo RGB EXPO 6400mhz CL32 DDR5 Ram (F5-6400J3239F24GX2-TZ5NR)

G.Skill 32GB(2x16) TZ5 Neo RGB EXPO 6400mhz CL32 DDR5 Ram (F5-6400J3239G16GX2-TZ5NR)

G.Skill 32GB(2x16) Trident TZ5 Neo RGB 6000mhz CL30 DDR5 AMD EXPO Ram (F5-6000J3038F16GX2-TZ5NR)

Which one do you think I should choose?

 

Don't bother with the ultra high-end stuff.
Not only is the performance benefit over the highest typical synced (1:1, MEMCLK:UCLK) frequency of 6000MHz questionable, the board in question WILL NOT be able to reach those extreme frequencies.

In my case, the absolute best case was 7600MHz and even at that frequency, the margins were far lower than what I personally would find acceptable for 24/7 use.

Spoiler

 

Don't bother with the ultra high-end stuff.
Not only is the performance benefit over the highest typical synced (1:1, MEMCLK:UCLK) frequency of 6000MHz questionable, the board in question WILL NOT be able to reach those extreme frequencies.

In my case, the absolute best case was 7600MHz and even at that frequency, the margins were far lower than what I personally would find acceptable for 24/7 use.

Spoiler

View attachment 2649835

I understood properly now. In order not to push my luck, I bought a 2x24gb Gskill kit, TridentZ5 Neo EXPO 6400mhz CL32. It works smoothly. Many people suggested I buy 2X16, but luckily I use 2x24GB without any problems.

 

Doesn't going above the 6,000 MHz limit force you to run the RAM desynced? Meaning it performs worse than 6,000 synced?

 

Technically it doesn't however, in the majority of cases it practically does, since the memory controller on RPL cannot clock much higher than 3100MHz, at best.

 

Technically it doesn't however, in the majority of cases it practically does, since the memory controller on RPL cannot clock much higher than 3100MHz, at best.

Well yeah but you can still force 1:1 mode up to 6800 in the best CPUs. Also running 8000mt/s it's pretty achievable in most CPUs. It doesn't give you an enormous performance gain compared to 1:1 mode, but you can run a lot lower vsoc....

Has anyone tried 8,000+ MHz and measured its performance compared to a synced 6,000 MHz configuration? Is there enough of a gain to bruteforce past that performance loss?

 

theoretically YES ( 7600+ speed you gonna see a bit improvement over 6200 with tight timing )
but also depend in many factors like DDR die type .. IMC quality and FCLK synchronization

 

Not one to doubt @The Stilt knowledge but in the amd ddr5 thread, there are more users getting 8000mt stable on latest bios, even DR dimm

will you be retesting Zen4 3d and share any interesting findings?

Another thing how about taichi lite? It looks even more attractive than strix b650e-e?

 

Frankly, I was going to buy ASROCK X670E Taichi. The price was much more affordable than ASUS. But most of the components I use are ASUS. Keyboard Mouse Graphics Card and GPU Holder. For RGB, I chose ASUS B650E-E because it would be difficult to control them with ASROCK. This motherboard took some features from its older brother, the X670E-E. And it is a motherboard equivalent in power to the X670E-F and X670E-A models. It is even a better motherboard than the X570 Crosshair that I used with the 5900X, with its VRM, M2 Slots and USB features. Therefore, for me, B650E-E was sufficient in every respect.