Overclock AMD Ryzen 5 2600 + Asus ROG Strix B450-F Gaming + Corsair Vengeance LPX

[fjsarmiento]

Interesting response from Corsair:

"Thank you for the update. Errors in Prime95 don't necessarily mean that the kit is faulty and won't run at that speed. If you're experiencing issues elsewhere, it should be fine to increase the memory a little bit passed 1.35. We even have some kits that are rated at 1.4v in order to achieve higher frequencies, but usually come with RAM coolers to ensure that the memory is kept cool. I would only suggest slightly increasing the voltage if you have good cooling in your case."

[Arne Saknussemm]

Those are both pretty standard responses...probably a machine

[fjsarmiento]

Those are both pretty standard responses...probably a machine

I was just surprised Asus advised to go above spec and Corsair basically said to ignore Prime95 errors and run the ram at those speeds.

[BaneSerb]

I feel like I should share some of my experiences with "optimizing" Ryzen performance. First, I want to say that I am very satisfied with the performance/price ration of my build, though if I was a a bit more patient, it would be even better.

Last year April time I got myself a Ryzen 2600x and Asus Strix B350-F motherboard. B450 where not available yet, and this one had the best network and audio among B350 models. I know, April 2018 was a really bad time for RAM purchase, and I got two modules 3200MHZ G.Skill TridentZ (16GB kit) for 250 euros. I mentioned I was going to use it with Ryzen and the salesman claimed these where Samsung B-die, though they where marked as C16 which was a bit confusing but I took them anyway. Later when inspecting with Aida64 they where Hynix, not Samsung chips.

At that moment I was not able to boot at 3200MHz even with DOCP and complete manual timings.
I was able to run them at 2933MHz though what I had to do is input manually all the timings AND subtimings. If I did not enter the subtimings too , I could boot but the system was unstable. You can view your memory subtimings withing your B450 bios MEMORY-Z.

I have to note that these "complete" manual timings actually leave a few options on AUTO because the XMP profile does not give value for every single subtiming.

With the latest BIOS update I can boot at 3200MHz with complete manual timings and DOCP Standard (new option) but again system is not completely stable. SOC voltage I used was up to 1.205 and when it did not become stable I abandoned further stressing the hardware.

IIf you want to run 3200MHz you have to get C14 kit, C16 are most likely not Samsung and you will have a hard time running them at declared speeds with Ryzen.

Running at 2933MHz seems to be the sweet spot between stability and performance, and what I was able is to tighten on the timings a bit, making it closer to C14 with RAM voltage 1.365v.

Besides RAM speed, timings and voltage, everything else is on AUTO and the XFR works like a charm, overclocking the CPU sometimes to 4.1 and 4.2 in small bursts, while rendering tasks even-out on 3.9-3.95 though I am not using the stock cooler but my old CoolerMaster TX3 which can be fitted on AM4 with "hairpin".

This summer I am looking to upgrade a bit on my cooler, looking at LC-CC-120 which is a bit cheaper than brand name coolers and I imagine it will get me the 3.99 GHz at rendering. The difference with 2933MHz C14 and 3200MHz C16 is neglegible in games and professional workloads too.