06-04-2018 08:46 PM
11-20-2018 05:33 PM
norman_87 wrote:
I just got 3533MHz stable on my Flare X 2x8GB b-die kit
1.45V dram, 1.15V soc
3600MHz is not gonna happen with those timings, I tried already with 1.5V but showed errors, probs have to loosen some timings not worth the hassle.
Does anyone have a clue about the Aida64 benchmark? Only got the trial version, are those numbers accurate? I just know that the lowest possible latency is around 58ns for zen+
11-21-2018 01:19 AM
Alcolawl wrote:
Nice job, that is a great speed to achieve on Ryzen. I was able to get my B-Die kit stable at 3466 MHz and decently tight timings. My numbers were just a little lower than yours, both read speeds and latency. There's actually a community overclocking sheet that I put together and combined with the data from another community (OCN) for Zen+ Memory Overclocking. Check it out here. You'll see that your numbers fall right in line with others that were running their kits at similar speeds.
EDIT: I was a little surprised at your SOC voltage, seems like most other people had luck, including me, running a much lower vSOC. I'd probably try to work on that a little when you have some spare time. At the very least, lowering the vSOC will help with temperatures.
11-21-2018 03:57 AM
norman_87 wrote:
Thanks for linking the document to compare stuff, really helpful.
To be honest I left my soc voltage on auto which is 1.15V in Bios and 1.135V under load. Can probably test 1.0V-1.1V. Hopefully my cpu oc doesn't get unstable with lowering soc voltage, I heard that soc voltage can help with your cpu oc stability.
11-21-2018 10:12 AM
AniChatt wrote:
Even 1.10v is not required most of the times. It is helpful for RAM OC but something 1.00 to 1.10v should do the job for Ryzen+. 1.15v is not required for almost 98% times I believe. Set a decent LLC 3-4 level and reduce the Vcore part to max possible to achieve a super low voltage stable oc. Made a tutorial on it (a bit boring though) but I have measured the power draw (by hw monitor) and found it is really worth it compared to setting the LLC lower and vcore higher.
11-20-2018 12:01 AM
11-20-2018 01:22 AM
11-20-2018 01:51 AM
AlleyViper wrote:
@norman_87, good stuff! How are reported stick temps while stress testing them?
11-20-2018 08:22 AM
11-20-2018 02:04 PM
AlleyViper wrote:
Sorry I had no way to test it, as I'm away from my Ryzen. Setting 99% should then apply the next p-state bellow 3.7GHz, hence the huge drop in speed. You could try reverting to 100%, and just disable performance boost (Yes, PBO is already off with PE on Default). You should find it on Advanced\AMD CBS\"Core Performance Boost". It should set your CPU to max base 3.7GHz, by disabling PB/XFR.
Regarding air coolers, please double-check size diagrams on their corresponding pages to ensure proper clearance in all directions (ex, the lower zone at the top of the side panel before it protrudes). Those things are huge.
On memory It's not so much about "quality", it's just that those sticks on the picture should have had better timings for that speed and be quite more expensive (even if not the most appropriate choice for a Ryzen+ build). The only Kingston 2666 C19 rated sticks I see are their value series without heat spreaders, and that explains the lack of a tighter XMP profile. If you wish to correct that CL timing at 20, check if DOCP does it for you, else, just input 19 in the first setting of Ai Tweaker\Memory Control, DRAM CAS# Latency. Don't bother about the rest for now.
@norman_87, good stuff! How are reported stick temps while stress testing them?
11-20-2018 04:45 PM