finally making progress RAM SPEED
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=6278
Printed Date: 26 Dec 2024 at 10:23pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: finally making progress RAM SPEED
Posted By: datonyb
Subject: finally making progress RAM SPEED
Date Posted: 07 Oct 2017 at 9:18pm
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as some of you know i was quite lucky from very early days with plug n play 3200 ram on my taichi using the tridentz 3200cl15 8 gig sticks alas due to ryzen/amd issues it has always ran at 3200 cl16/15/15/15/35/50 1t each and every bios release since v1.5 i have tried to get at least cl14 timings out of this kit (something which is easy peasy on intel boards) i have been able to get it stable many times at cl14/3200 BUT NEVER the dam cold start up boot eg i can save exit bios and go into windows ,but if i switch it off overnight then i get the beep beep cycle of death next day, and have to suffer the total reset of bios defaults well now im typing this at 3466mhz cl14/14/14/14/28/42 1T  and it cold boots  after mucho reading ,screenshots, and bios playing things i had to adjust > amd boot training turned to ON/AUTO soc volts 1.1 ram volts 1.395 CPU VOLTS 1.35 (YES IT SEEMS THE CPU VOLTS DO MAKE A DIFFERENCE) geardown mode = enabled (despite advice from two very good gurus *stilt* and *chew* my board WILL NOT COLD BOOT with geardown off which is normal advice to have it off ) bankgroup swap = off bankgroup swap alt = on i will have to work over the next few days to see how much and what voltages i can turn down now as well as getting the main subtimings better eg cl15 etc i have massively reduced some other lesser known subtimngs eg trfc etc and have seen quite a good increase in ram performance im waiting hopefully for one of the mods to assist me with a program to display ram timings in ryzen so guys can see exactly what settings to try and follow etc ------------- [url=https://valid.x86.fr/jpg250]  [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Replies:
Posted By: datonyb
Date Posted: 07 Oct 2017 at 10:42pm
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ok update 3466 isnt totally stable (eventually crashed) trying same subtimings on 3333 now ------------- [url=https://valid.x86.fr/jpg250] [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Posted By: wardog
Date Posted: 07 Oct 2017 at 11:58pm
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I'm confused by your going up in speed over their rated 3200 yet lowering the timings. Counterproductive. This IS Ryzen afterall. Yet, I'll play along...... Try these Clear the BIOS (ALWAYS clear when making mem changes. Swapping sticks or a single timing change) Set 'em using XMP to set the sub-timings of them Make these changes 14-14-14-33-46 1T(then if 1T fails attempt 2T) First try those at 3333, then 3466. Should, should, run 3466 |
Posted By: wardog
Date Posted: 08 Oct 2017 at 12:07am
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And I don't ever want to hear you mention again how expensive and snooty high class MY 4133 TridentZ's are. https://www.dailydeals.io/products/gskill-tridentz-series-16gb-2-x-8gb-288-pin-ddr4-sdram-ddr4-3200-pc4-25600-desktop-memory-model-f4-3200c15d-16gtz-new  |
Posted By: datonyb
Date Posted: 08 Oct 2017 at 1:06am
well let me explain my sticks are cl15 3200 described as middle ground samsung b dies stilt and chew both get faster speeds and lower timings on these lower binned ic's (hence why ive aimed high and increased speed AND lowered timings) ive got much further today as what seems to be the issue holding me back was the geardown mode and cold boots even at 3200 cl14 3466 at first posted timings was a bit of a no-go had game crashes (windows fine just game crash) and in 4 hrs also had two crashes in games not windows at 3333 it would seem my sticks and imc are not that happy with the tighter set of timings i will have to try safer 3200 cl14 settings ------------- [url=https://valid.x86.fr/jpg250] [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
wardog wrote:Posted By: datonyb
Date Posted: 08 Oct 2017 at 1:08am
hey those are my exact ram sticks/kit mine were a little bit less £158 samish amount in $$$$$ ------------- [url=https://valid.x86.fr/jpg250] [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Posted By: datonyb
Date Posted: 09 Oct 2017 at 6:01am
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a small update tried running advised timings of 14/14/14/14/33/46 still had some game crashes at 3333 dropped the mhz down to 3200 and 14/14/14/14/35/50 and its been rock solid all afternoon and evening it may seem a combination of the low end b dies and my not so lottery win cpu imc im happy now anyway as my stock cl15 timings defaulkted to cas 16 so its a good improvement i will see how it goes and maybe try to bump it to 3333 if this remains stable over the week ------------- [url=https://valid.x86.fr/jpg250] [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Posted By: parsec
Date Posted: 09 Oct 2017 at 10:40am
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" rel="nofollow - I'm curious if you have a CPU OC with your memory OC. I use 1.35V for my 3.9GHz OC (which barely qualifies as an OC IMO) with a 1700X. I used stilt's Samsung B-die secondary and tertiary memory settings with my FlareX 3200, and it helped to get it to run at 3200, which was never a given on my Ryzen PC. Manually setting Proc ODT seemed to help too, which I imagine you've done already. I've been fascinated with Proc ODT lately, which I have set to, IIRC, 60 Ohms. What is your's set to, for my Proc ODT knowledge base? I hate that we don't know what the Auto setting actually is, and there are no specs about it. My newer Intel chipset boards have several ODT options, which never get set to anything but Auto, since there is not much information about it available. AMD said that for any memory OC (above 2667), the Auto setting for Gear Down Mode is enabled, so 2T. They also said it is easier to OC your memory with Gear Down Mode enabled. We won't see the Command Rate set to 2T, if it is set to 1T, but Gear Down Mode changes it internally. As you said, the usual notion is Ryzen prefers 1T, which is the XMP value for my FlareX 3200. Your timings are almost identical to the XMP timings of my FlareX, 14 14 14 14 34 48. In the past, I had the occasional cold boot problem with the FlareX, but I haven't had that happen for a while now. I also have AM4 Boot Training disabled. ------------- http://valid.x86.fr/48rujh" rel="nofollow"> 
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Posted By: wardog
Date Posted: 09 Oct 2017 at 12:29pm
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I've posted this before. Some Old Skool Memory stuff. Signal Noise Management with On-Die Termination (ODT) https://www.bit-tech.net/reviews/tech/memory/the_secrets_of_pc_memory_part_3/8/" rel="nofollow - https://www.bit-tech.net/reviews/tech/memory/the_secrets_of_pc_memory_part_3/8/ Note also, SPDTool, on the page. |
Posted By: wardog
Date Posted: 09 Oct 2017 at 12:47pm
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Amen for backups.......... JEDEC Standard for DDR4; Updated June 2017 http://www86.zippyshare.com/v/RRs1TYuU/file.html" rel="nofollow - http://www86.zippyshare.com/v/RRs1TYuU/file.html ODT section begins on pg 161 |
Posted By: parsec
Date Posted: 09 Oct 2017 at 9:44pm
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Thanks for those links. I wonder if SPDTool, whose download is from early 2014, will work with DDR4. I'll see... EDIT: Not working on my Z270 PC, will try with Ryzen. ------------- http://valid.x86.fr/48rujh" rel="nofollow">
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Posted By: datonyb
Date Posted: 10 Oct 2017 at 12:28am
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yes i do have the cpu oc mines at 3.9 also now i USED to run it at 1.3 volts fixed but it seems apperent now theres more luck in a little extra juice to cpu vcore when pushing the ram so at the moment im running 1.325v at 3.9 (for reference the temps difference between 1.3v and 1.35v when i was testing over the weekend were an extra 6 degrees C using a noctua heatsink and fan) i will try to gently drop the volts back down when i feel sure i have a stable ram overclock and update you with my findings ive set the proc-odt at 53.3 ohms, as a tester it seems ok ,i choose that as it seemed most people used it with sucess ( and yes i couldnt agree more ,we need people to share experiance with what works with what boards and ram brands, to enable us to learn) i have to set geardown to enabled with the taichi or it will always give me the cold boot loop of death, this seems to be echoed with others on the overclockers taichi thread so basically at the moment my cl15 ram is set with xmp change the first 4 timings to ALL 14 then leave the rest at xmp hence the 35/50 i have however changed the trfc trfc 1st =312 trfc 2nd = 192 trfc 3rd = 132 geardown = on bank group swap = disabled bank group swap alt = enabled proc-odt = 53.3 dram volts 1.375v (need to lower) soc 1.05v (need to lower) vddp 1 volt (need to lower) vtt-ddr 0.700 cpu vcore 1.325v (need to lower) future plans : get the voltages down a bit test at 3333 mhz tighten a few more timings *step by slow-step* (using stilts and chews profiles) ------------- [url=https://valid.x86.fr/jpg250] [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |