asrock 870 extreme3 r2.0 not seeing 32GB Ram
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=6070
Printed Date: 26 Dec 2024 at 1:22am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: asrock 870 extreme3 r2.0 not seeing 32GB Ram
Posted By: Konyak
Subject: asrock 870 extreme3 r2.0 not seeing 32GB Ram
Date Posted: 13 Sep 2017 at 11:54pm
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" rel="nofollow - Hi I just got 2 pairs of 2x8GB Kingston Hyperx Fury 1866MHz sticks and wanted to occupy all 4 DDR3 slots on my motherboard for 32GB. I have the latest BIOS but it won't boot at all with all 4 sticks in place. The old ram, 2x4GB GSkill Ripjaws @ 1600Mhz, will run alongside two of the 8GB sticks for a total of 24GB, but I'd much rather not mismatch ram. Anyone know why it's not able to boot with all 4 sticks? The specs say it should support 32GB with the AMD FX6100 that is installed. I have Win 7 Pro 64 bit. Thanks!
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Replies:
Posted By: datonyb
Date Posted: 14 Sep 2017 at 1:25am
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test each stick on its own to check one of them is not doa ------------- [url=https://valid.x86.fr/jpg250]  [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Posted By: Konyak
Date Posted: 14 Sep 2017 at 7:02am
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Yeah, sorry, should have mentioned that I've done that, allthough I checked them as pairs. Both pairs showed up as 16Gb. Also checked the slots to see if A or B were defective. All ok. |
Posted By: wardog
Date Posted: 14 Sep 2017 at 7:16am
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" rel="nofollow - Lemme guess. They work as a pair when they are paired by serial number? |
Posted By: datonyb
Date Posted: 14 Sep 2017 at 6:37pm
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" rel="nofollow - can you not return the hyperx and just get one set of matching ripjaws ? i have the same set of hyperx here in a phenom 965 system (and im really not impressed by them, i know they wont run 1866 on phenom but then they also wont run at phenom2 speeds without major tweaking) however there is another scrap of info i have just chanced upon with a fx6100 and 4 ram slots occupied max ram speed is 1600 for single sided ram and 1333 for dual sided ram humour me if you please boot the system with just two hyperz sticks check its running at 1833 next enter bios change ram speed to default OR SET 1333 then instal the 4 sticks of hyper and see if it boots then when they are downclocked heres the link with the graph as first post and the rest of replies generally agreeing the memory controller is struggling http://www.overclock.net/t/1358803/phenom-ii-x6-ram-supported-speeds ------------- [url=https://valid.x86.fr/jpg250] [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Posted By: datonyb
Date Posted: 14 Sep 2017 at 6:45pm
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update 1 your motherboard ram support page actually indicates it MAY support 4 double sided sticks at 1600 http://www.asrock.com/mb/AMD/870%20Extreme3%20R2.0/#Memory" rel="nofollow - http://www.asrock.com/mb/AMD/870%20Extreme3%20R2.0/#Memory i would advise checking 1333 first and if so then try 1600 i still think 1833 is the problem with the 4 sticks and 32 gb ------------- [url=https://valid.x86.fr/jpg250] [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Posted By: Konyak
Date Posted: 14 Sep 2017 at 9:19pm
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Wardog: If by serial number you mean from the same package, then yes (sorry, at work so I can't check the numbers). Datonyb: I got the memory to make the system better for handling 4K video editing. The prospect of downclocking to 1333 isn't appealing and I wonder if 16GB at 1866MHz isn't better than 32GB at 1333. I'm toying with the idea of swapping out the mobo for a more recent one and getting a FX-8350 CPU for it. I will try what you suggested tonight if I get the chance. I'm currently running 16GB at default settings, which for some reason, is 1.65v even thought these are listed as 1.5v sticks. |
Posted By: datonyb
Date Posted: 14 Sep 2017 at 9:53pm
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i would say it probably depends more on the max speed of ram and the actual timings obtained at those speeds its no good getting an extra 500 mhz if the timings go through the roof however without the actual board in front of me i can only advise what is written on tech sheets and other posts hopefully the root of problem is the attempt at 1833 with 4 double sided sticks, and in fact you do suceed in reaching 1600, then the difference between 1600/1833 can only really be measured by software bench tests or in your case 10 seconds shaved off a 20 min video edit ------------- [url=https://valid.x86.fr/jpg250] [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Posted By: Konyak
Date Posted: 15 Sep 2017 at 2:41am
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I just tried setting 1333MHz and 1.501v leaving the rest on Auto. It boots up and shows 32GB :) Have yet to try the 1600MHz but am in a hurry. CPU-Z shows the Memory tab with NB frequency at 1995 MHz and Timings at 8-8-8-22-30. Dram freq at 665 MHz.
Will see how the 1600Mhz turns out later on. Thanks ! |
Posted By: datonyb
Date Posted: 15 Sep 2017 at 3:50am
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can you let us know the final outcome please ,just so we know it worked so we can advise people better in future cheers tony ------------- [url=https://valid.x86.fr/jpg250] [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Posted By: Konyak
Date Posted: 16 Sep 2017 at 3:02am
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Hey guys Ok, 1600MHz is working. CPU-Z says the timings are 9-10-9-26-36. Timings were 10-10-10 at 1833MHz so as you said, the difference will be very slight or 0.53 ns. (from a CAS chart on wiki) I'm not sure if I should look into adjusting the timings further. I have the voltage still at 1.5v. I'm open to suggestions regarding overclocking or tweaking of any sort :) Thanks again!
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Posted By: datonyb
Date Posted: 16 Sep 2017 at 5:39am
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yeah its simple mate lower the timings one at a time restart and run a decent stress test ------------- [url=https://valid.x86.fr/jpg250] [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Posted By: datonyb
Date Posted: 16 Sep 2017 at 5:41am
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p.s. we seem to have proved your memory controller is crapping itself at 1833 overall with all that ram ,i dont think you have had a bad result ------------- [url=https://valid.x86.fr/jpg250] [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Posted By: wardog
Date Posted: 16 Sep 2017 at 10:03am
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datonyb wrote:Posted By: Konyak
Date Posted: 21 Sep 2017 at 11:48pm
I agree, it is a good result  I have not had much time to mess around with timings, I need to read up on some things there and find a good memory stress tester. I downloaded HCI Memtest but it only allowed me to test 2000MB per session ( I ran 6, one for each core ) and the computer was frozen when I returned some hours later.
That was at the 9-10-9 timings which auto settings selected, but the Ram is listed at 10-10-10. Perhaps it's already unstable at 9-10-9. |
Posted By: datonyb
Date Posted: 22 Sep 2017 at 1:16am
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frozen could have been an issue with sleep mode and the full on test at same time which is something you probably wouldnt encounter in real use ------------- [url=https://valid.x86.fr/jpg250] [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |