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Need help comfiguring memory with Ryzen


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#1 DigitalEternal

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Posted 30 October 2017 - 10:57 PM

Hi Guys,

 

Just re-build my system after my old mobo died on me, everything seems to be working properly except I'm having some problems getting the memory to run at the correct speed.

 

CPU: Ryzen 1600X

Mobo: Asus ROG Strix B350-F

Ram: 16 gb Corasir Dominator Platinum DDR4-3200 CMD16GX4M2B3200C16

 

I have the ram installed into slots A2 and B2

 

I can't seem to get it to run at 3200, or eve 2933, when I change the DRAM Frequency it fails to post and boots the bios to safe mode after a couple tries.

 

I've tried setting the DRAM Voltage to 1.35 but that didn't seem to help.

 

On Auto it runs at 2133 15-15-15-36.

 

Any help would be very much appreciated.

 

PS: On a quick seperate note, I got one of those all in one wwater coolers but wasnt sure where to plug it in. I connected the fan to CPU fan and the pump to AIO Pump, is this correct? The pump connector is only a 3 pin but the on the mobo its 4 pin, still fit and it lights up but wanted to make sure as I've never used one of these before.


Edited by DigitalEternal, 30 October 2017 - 10:57 PM.


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#2 Drillingmachine

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Posted 31 October 2017 - 11:48 AM

You updated BIOS and AGESA to latest version?

PS: 3-pin connector is missing wire that controls fan speed. That shouldn't matter because pump has no fan. No idea what exactly is AIO Pump connector however. But that should be OK if it works.

#3 DigitalEternal

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Posted 31 October 2017 - 12:04 PM

I did update the bios but not sure about AGESA, is there a seperate update for that?


Edited by DigitalEternal, 31 October 2017 - 12:05 PM.


#4 Drillingmachine

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Posted 31 October 2017 - 12:24 PM

AGESA comes with BIOS update. AGESA 1.0.0.7 should come in less than a month so wait for it and continue hunting 3200 MHz then.

#5 DigitalEternal

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Posted 31 October 2017 - 12:26 PM

Is that version supposed to fix it? It's just I can still return this ram and get something else if it's not going to work.


Edited by DigitalEternal, 31 October 2017 - 12:26 PM.


#6 Drillingmachine

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Posted 31 October 2017 - 12:57 PM

It should improve fast memory compatibility. However if you can return it and really want 3200 MHz, look for something with Samsung B-die chips. It also helps if memory is single rank.

Main problem is Ryzen's memory controller, that is somewhat rushed one although AGESA updates have greatly improved it.

#7 DigitalEternal

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Posted 31 October 2017 - 01:11 PM

The annoying thing is I really thought this was a good choice as the 3000 version of this ram is listed as certified for ryzen so I thought this would be the same.

 

Looking at prices anything that's listed as AMD compatible right now will cost me atleast $50 more then what I paid for this, maybe I'll just wait for the update and keep my fingers crossed.


Edited by DigitalEternal, 31 October 2017 - 01:38 PM.


#8 Drillingmachine

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Posted 31 October 2017 - 02:01 PM

QVL lists are generally useless.

With current memory prices, it's not bad idea to wait AGESA upgrades rather than invest much money for low gain.

#9 DigitalEternal

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Posted 31 October 2017 - 02:39 PM

Do you think this memory will perform well once the AGESA is updated? I really don't want to get stuck at 2133.

 

Any tips for which settings to try to at least get it running a little faster for now?



#10 Drillingmachine

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Posted 31 October 2017 - 03:51 PM

It should run around 3000 at least, that's what I predict.

Try 2800 MHz with relaxed timings. It it boots, put tighter timings until it fails. Then relax timings a little and test stability.

Edited by Drillingmachine, 31 October 2017 - 03:51 PM.


#11 DigitalEternal

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Posted 31 October 2017 - 04:12 PM

Any suggestions for timings? It's been a long time since I've tweaked memory settings.


Edited by DigitalEternal, 31 October 2017 - 04:13 PM.


#12 Drillingmachine

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Posted 31 October 2017 - 04:20 PM

These are very relaxed ones, at 2800 MHz should be no problems.

tCL 18
tRCD 18
tRP 18
tRAS 36
tRC 52
Command Rate 2T

These should work on 2800 MHz. I don't see much reason for tighter timings before new AGESA. If these don't work, then try something between two.

tCL 14
tRCD 14
tRP 14
tRAS 26
tRC 42
Command Rate 1T

#13 DigitalEternal

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Posted 31 October 2017 - 05:04 PM

Thank you for all your help, I really appreciate it.

 

So I was messing with the settings and tried D.O.C.P for the overclocking profile and it seemed to work, not sure why I didn't click that earlier lol.

 

It posted with 3200 and everything booted up fine, seems to be running at 3200 with 16-18-18-36

 

 

Here are my ram details from Speccy:

 

RAM
Memory slots
Total memory slots 4
Used memory slots 2
Free memory slots 2
Memory
Type Unknown
Size 16384 MBytes
Channels # Dual
DRAM Frequency 1596.2 MHz
CAS# Latency (CL) 16 clocks
RAS# to CAS# Delay (tRCD) 18 clocks
RAS# Precharge (tRP) 18 clocks
Cycle Time (tRAS) 36 clocks
Bank Cycle Time (tRC) 75 clocks
Command Rate (CR) 1T
Physical Memory
Memory Usage 17 %
Total Physical 16 GB
Available Physical 13 GB
Total Virtual 24 GB
Available Virtual 21 GB
SPD
Number Of SPD Modules 2
Slot #1
Slot #2
 
Does that all look correct?

Edited by DigitalEternal, 31 October 2017 - 05:24 PM.


#14 Drillingmachine

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Posted 01 November 2017 - 09:38 AM

tRAS and tRC are quite high, other than that looks OK. Not bad idea to keep those two timings as they are now if they work.

#15 DigitalEternal

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Posted 01 November 2017 - 10:12 AM

The advertised latency of this ram is 16-18-18-36 so it definitely got all that right (seems to be standard values for 3200), not sure about the tRC though, is there a more optimal value I should try for that?






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