[therock003]

Ordered and waiting to receive this board and i'm planning ahead with BIOS settings and RAM combatibility.

Ryzen 5 1600X will be my cpu and G.Skill RipjawsV 16GB DDR4-3200MHz (F4-3200C16D-16GVKB) my memory.

This seems to be the QVL

http://www.asrock.com/mb/amd/Fatal1ty%20AB350%20Gaming-ITXac/index.asp#Memory

and based on this Sticks could either be Smasung or Hynix

https://www.reddit.com/r/62vp2g/clearing_up_any_samsung_bdie_confusion_eg_on/
Already got the sticks on my hand, is there any way based on the package to see what i got, and based on the mobo, cpu, ram combo what BIOS config would you recommend. I wont be planning OC any time soon, so what should the timings, cpu and memory frequency be for the first time boot. And other settings as well so i'll be ready when i grab all parts

 

[billbartuska]

For the first boot in the BIOS just set everything about memory (timings / voltages) to their defaults and see what you get.

You can use CPU-Z to see the SPD tables on you sticks and then manually enter those settings.

To see more of the SPD tables use Thaiphoon Burner. Just a bit of warning though:

Thaiphoon Burner can wreck you memory. Don't do anything with it other than reading the SPD tables.

 

[therock003]

And what about the frequency? With stock clocks on the R5 (no O/C) should i set to get values from xmp profile or calculate the frequency myself and set it manually

 

[billbartuska]

DoOn't set anything manually.

And about XMP:

Background (simplified):

When any computer starts up the BIOS reads the SPD tables programmed into the memory. You can download and run CPU-Z to see the SPD tables in your memory. The BIOS then uses the memory speed and memory timings from the SPD tables that corresponds to the CPU speed that is set in the BIOS.

XMP profiles were developed to allow automatically setting not only memory speed and timings automatically, but also memory voltage. So, with the added ability to increase voltage, memory manufacturers could program SPD tables that run the memory even faster with the higher voltages available, and do that automatically too.

But the whole concept of XMP is faulted because the person writing the XMP SPD table for the memory has no idea what motherboard, CPU, what other peripherals are connected to your motherboard, nor even how many memory sticks you have installed. So, XMP profiles are just a guess at what memory overclock will work for the widest range of motherboards, CPUs, memory, and computer configurations. They have nothing to do with what your specific setup is. ... they're just a guess.

Do they work? Sometimes, sometimes not. And even if they do work it is unlikely they are the best settings for you particular setup.

Memory setting (with or without overclocking) is best done by manually setting the memory settings in the BIOS.

 

[therock003]

Ok i will not be choosing the XMP then. But mainly i wan to to know something else. Last build i did like 8 years ago on i7 gen 1, i remember you had to set an FSBRAM Ratio so that cpu and RAM communicated best. Does that theory still apply, meaning you need a rounded number in the ratio, or do you set RAM to the highest frequency your cpu/mobo can handle?

I got that 3200 Dual Chanel as i said, but since theres this AMD issue, i hear you cannot get past 2993 until more BIOS updates become available.

So my question is, will 2993 be the best option assuming i can hit that and maintain a stable system, or do i need to perform calculation and hit a ratio between cpu and RAM speed

 

[billbartuska]

The answers to the above I do not know.

 

[Max78]

I know this is an older thread, but I have the same motherboard and some questions.

I'm currently running my memory with XPM profle @ 3200mhz, it ran fine with the old bios, and runs fine with the latest bios.

Given the options, should one not try the XMP profile fist to see if it is successful? Then if there is a failure to post attempt to tune manually?

If the XMP profile runs without issue then does that generally mean there is more performance on the table? How much more performance can one expect XPM vs tuned?

Edit: Answered my own question. . .

https://community.amd.com/community...emory-oc-showdown-frequency-vs-memory-timings

 

[pawnipt]

What I normally do is set the XMP profile then see if its stable by running some stress test programs, AIDA64 is good but there are some free ones too like MemTest. After that you can usually tune the timings further and even the subtimings. I've seen decent performance gains by tightening subtimings in the cpu physics benchmarks in 3dmark.

Anyways if your kit is 3200 mhz c14 samsung b-die you can likely overclock your ram to as high as 3466 mhz keeping the same xmp profile timings which might prove to provide better performance than tweaking the timings, I'm not sure but you might need to raise the volts to 1.4 but i would test with 1.35 first.

Also raising the ProcODT is known to be helpful for stability when overclocking ram. For me 60 ohms seems to work the best. Command rate is best at 1 for performance. Gear Down Mode turned on can help stability with overclocked ram as well, some people say it takes a hit to performance but not that I've seen.

I run my gskill kit which is samsung e-die dual-rank at 3333 mhz 14-15-15-34-48-cr1 completely stable. But thats dual-rank.

But for sure you can likely overclock your ram further. From what i've heard 1.5 volts is the absolute maximum and I think the highest this motherboard allows anyways. I keep mine at 1.4 volts however. But raising volts or procODT ohms is usually as last resort solution for overclock stability. Highest procodt that is said to be safe is 80 ohms. I just keep procodt on auto however but it maybe different for your ram i don't know.

Pic of my timings, but like i said its dual-rank samsung e-die with only one XMP profile rated for 3400 mhz 16-18-18-38.
f4-3400c16d-16gtz