NEW!!! DRAM Calculator for Ryzen™ 1.6.2 (overclocking DRAM on AM4) + MEMbench 0.8 (DRAM bench) - Page 647 - Overclock.net - An Overclocking Community
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NEW!!! DRAM Calculator for Ryzen™ 1.6.2 (overclocking DRAM on AM4) + MEMbench 0.8 (DRAM bench)

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post #6461 of 6596 (permalink) Old 01-13-2020, 07:37 PM
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Tried that Intel thing. 3900X 3733Mhz CL14. Tried also to create a spoiler here, lol. How do i do that?

Intel(R) Memory Latency Checker - v3.7
Measuring idle latencies (in ns)...
Numa node
Numa node 0
0 49.7

Measuring Peak Injection Memory Bandwidths for the system
Bandwidths are in MB/sec (1 MB/sec = 1,000,000 Bytes/sec)
Using all the threads from each core if Hyper-threading is enabled
Using traffic with the following read-write ratios
ALL Reads : 57794.8
3:1 Reads-Writes : 52318.4
2:1 Reads-Writes : 51668.8
1:1 Reads-Writes : 50391.7
Stream-triad like: 52803.6

Measuring Memory Bandwidths between nodes within system
Bandwidths are in MB/sec (1 MB/sec = 1,000,000 Bytes/sec)
Using all the threads from each core if Hyper-threading is enabled
Using Read-only traffic type
Numa node
Numa node 0
0 57743.2

Measuring Loaded Latencies for the system
Using all the threads from each core if Hyper-threading is enabled
Using Read-only traffic type
Inject Latency Bandwidth
Delay (ns) MB/sec
==========================
00000 230.24 57771.7
00002 231.20 57817.6
00008 228.87 57825.3
00015 228.34 57813.2
00050 217.17 57824.7
00100 220.02 57815.7
00200 67.02 51270.1
00300 58.50 36879.6
00400 55.38 28732.6
00500 53.41 23516.4
00700 51.69 17579.0
01000 50.69 12852.4
01300 50.30 10235.6
01700 49.99 8163.9
02500 49.66 5991.7
03500 49.50 4661.0
05000 49.35 3659.3
09000 49.24 2614.0
20000 49.18 1893.1

Measuring cache-to-cache transfer latency (in ns)...
Using small pages for allocating buffers
Local Socket L2->L2 HIT latency 13.1
Local Socket L2->L2 HITM latency 22.7




Last edited by FranZe; 01-13-2020 at 08:19 PM.
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post #6462 of 6596 (permalink) Old 01-13-2020, 08:39 PM
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Quote: Originally Posted by Roboionator View Post
Hi,
Myabe someone have g.skill NEO F4-3600C16D-32GTZN?
I like to get less latency, now i get 69...ns,..or more power from them, something
I tried with ryzen calculator but with no success, 3600,3733,3800 safe or fast...
3950X stock
GA X570 Master
thx

I have the same memory modules. I have used them in a GB X570 Master and ASUS Crosshair VIII.



Your memory timings shown in RM is for the XMP settings, they can be improved.


Attached are the settings for 3733MHz that worked for me on both motherboards using a 3900X.


Spoiler!

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post #6463 of 6596 (permalink) Old 01-13-2020, 11:08 PM
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Quote: Originally Posted by jfrob75 View Post
I have the same memory modules. I have used them in a GB X570 Master and ASUS Crosshair VIII.



Your memory timings shown in RM is for the XMP settings, they can be improved.


Attached are the settings for 3733MHz that worked for me on both motherboards using a 3900X.


thank you
TRFC ok, where TRFC(alt) to set trfc2 or trfc4
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post #6464 of 6596 (permalink) Old 01-14-2020, 12:05 AM
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Quote: Originally Posted by eliwankenobi View Post
Thank you for sharing!

Thankfully because both our boards are MSI I assume I just go into advanced memory settings and I can go one value after the other in the same order. Good idea to go and change a block at a time. I already have a SAFE profile saved at 3800mhz FCLK1900 with CL18 timings. So change a block of numbers at time then and reboot in between. Does it work as well if I am coming from a stable CL16-16-16-32-48-1T OC? I am also running 4 sticks

1.5V is quite high! Are you running this 24/7? Fan over dims?
I have a fan over the dims, even without the fan I think I only saw one dimm get to 43C, but I'd rather keep em cool. If you're coming from a stable cl16, try to bring to tighten all or some, if it fails, maybe try only tightening a few, then tighten the rest.
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post #6465 of 6596 (permalink) Old 01-14-2020, 04:55 AM
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Quote: Originally Posted by ylpkm View Post
Quote: Originally Posted by eliwankenobi View Post
Thank you for sharing!

Thankfully because both our boards are MSI I assume I just go into advanced memory settings and I can go one value after the other in the same order. Good idea to go and change a block at a time. I already have a SAFE profile saved at 3800mhz FCLK1900 with CL18 timings. So change a block of numbers at time then and reboot in between. Does it work as well if I am coming from a stable CL16-16-16-32-48-1T OC? I am also running 4 sticks

1.5V is quite high! Are you running this 24/7? Fan over dims?
I have a fan over the dims, even without the fan I think I only saw one dimm get to 43C, but I'd rather keep em cool. If you're coming from a stable cl16, try to bring to tighten all or some, if it fails, maybe try only tightening a few, then tighten the rest.
That’s the thing, I tried to go straight from CL16 down to CL14 putting everything DRAM Calc showed at once and it failed to boot on its 2 tries.

What timings would you consider I should tighten first?

These are the settings I have now and what DRAM calc wants me to do based on the HTML profile.

Many thanks to you and anyone who wants to pitch in.
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post #6466 of 6596 (permalink) Old 01-14-2020, 09:05 AM
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Quote: Originally Posted by Roboionator View Post
thank you
TRFC ok, where TRFC(alt) to set trfc2 or trfc4

Just leave TRFC2 and 4 on Auto. AFIK they are not important and I do not mess with them.

Ryzen 3950X Build
(17 items)
CPU
3950X
Motherboard
ASUS X570 Crosshair VIII Hero
GPU
PowerColor RX 5700XT Liquid Devil
GPU
MSI RX 5700 XT Water cooled
RAM
GSkill F4-3600C16D-32GTZN
Hard Drive
Samsung NVMe EVO 970
Hard Drive
Samsung SSD 850 Pro
Hard Drive
GB Aorus NVMe Gen4 SSD
Optical Drive
LG BDDVDRW
Power Supply
Seasonic
Cooling
Optimus Foundation water block/custome loop with 360 rad.
Case
Corsair Graphite Series 780T
Operating System
MS Win10 Pro
Monitor
Samsung LC27HG70QQNXZA
Monitor
Samsung LC27HG70QQNXZA
Keyboard
Logitech G910
Mouse
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post #6467 of 6596 (permalink) Old 01-14-2020, 11:12 AM
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This thread is amazingly helpful, haha, dang....

First AMD CPU rig I've ever messed around with and definitely the first time I've dealt with so many memory settings

Safe settings didn't work for me so looks like I have some reading and some playing around to do.

IN HONOR OF SYRILLIAN, R.I.P.
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BMW TJ07 Build Log -- The Ultimate Cooling Machine
2 year anniversary In Remembrance of a Great - RIP Syrillian
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post #6468 of 6596 (permalink) Old 01-14-2020, 02:53 PM
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Testing some FCLK overclock for stability.For anyone interested.Thought I would put it in this thread.

DDR4 CL16 3866Mhz Single Rank RAM
1933Mhz Fabric clock (FCLK)
1933Mhz Memory Controller(UCLK=MEMCLK)

Best I seen on latency was 60.6ns/60.7ns but consistent readings was 61ns on latency.



Spoiler!
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post #6469 of 6596 (permalink) Old 01-14-2020, 05:35 PM
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Just change cl to 14 first and see if it's ok, if not raise voltage to 1.45v and go from there.
It's probably low voltage preventing post with a lower cas.
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post #6470 of 6596 (permalink) Old 01-14-2020, 11:29 PM
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Quote: Originally Posted by 2600ryzen View Post
Just change cl to 14 first and see if it's ok, if not raise voltage to 1.45v and go from there.
It's probably low voltage preventing post with a lower cas.
Do you know anyone going to Cl14 at 1933??

Sent from my ONEPLUS A6003 using Tapatalk

  • Ryzen 3600x @4490mhz v1.45, 2nd position at HWBOT
  • Gigabyte Aorus Elite x570
  • G-SkillLL F4-3200C15D-16GTZ Trident Z Series CL15 Bdies @3733 15-14-14-1T 1.39v
Offical Ryzen 5 3600x Owner!
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