AB350 Pro 4 - Ram Voltage
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=6004
Printed Date: 27 Jul 2024 at 2:45pm
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Topic: AB350 Pro 4 - Ram Voltage
Posted By: gabrimor
Subject: AB350 Pro 4 - Ram Voltage
Date Posted: 05 Sep 2017 at 9:29pm
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" rel="nofollow - Hi, thanks for reading. I bought, 2 weeks ago, an Asrock AB350 Pro 4 motherboard. My Corsair RAM isn't QVL, so I know it's not easy to get the rated 3000mhz speed. I'm running 2666 and I'm satisfied, it's enough for me. But, there's something I can't understand. DRAM voltage, at auto, runs with 1.21v. When I try to set at the rated voltage, 1.35v, mobo won't post. Same thing happens with any voltage higher than 1.23v. When I use, one bank, instead of two banks, I can increase the voltage to 1.35v. Is it normal? For me, this low voltage is making my system crash, sometimes..... Again, thanks for reading!
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Replies:
Posted By: datonyb
Date Posted: 06 Sep 2017 at 12:49am
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" rel="nofollow - have you tried selecting XMP and then turning just the 3000 down to 2666 and test to see if it boots? are your ram sticks in slots a2 and b2 ? have you tried increasing the SOC voltage to 1.1 volt ? ------------- [url=https://valid.x86.fr/jpg250]  [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Posted By: Maddreg
Date Posted: 06 Sep 2017 at 4:30am
Unfortunately there is no way to change SOC voltage on ab350 pro4 and am350m pro4 (and probably other cheaper MB), I heard that those options persist in bios but hidden by asrock ------------- ASRock AB350M Pro4//Ryzen R6 1600@3800=1.275v+Macho rev.B//GTX 1060//Ripjaws V@3200 16-18-18-38-56=1.4v (2x8Gb)//Corsair RM550x |
datonyb wrote:Posted By: parsec
Date Posted: 06 Sep 2017 at 10:03am
What model number of Corsair memory are you using, and what capacity and number of DIMMs are you using, as in GBs? Do you have a POST beep speaker installed? If so, do you hear any beeps when the board fails to POST? It sounds like your memory requires more power than the board is able to provide at 1.35V, for some reason. ------------- http://valid.x86.fr/48rujh" rel="nofollow"> 
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Posted By: wardog
Date Posted: 06 Sep 2017 at 10:54am
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Please pull the memory and re-seat it fully till both ends "click' , signalling it is seated correctly. What you describe is odd behavior. |
Posted By: gabrimor
Date Posted: 07 Sep 2017 at 3:01am
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Its really odd behavior, I know. RAM is CMK8GX4M2B3000C15I5, and i'm using the banks at slots a2 and b2. As the RAM works with 1.21v, we can say 1.35v its not enough. As I said, I tried everything, but the problem still. With 1 bank, I can set 1.35v, with two, 1.23v is the limit. The new fact is I can set 1.35v with A-,Tuning software.. I tested RAM with Memtest, Windows Memory Diagnostic, Prime Blend and Asus RealBench. PASSED. But fails with 10 seconds with AIDA64 stability. Sorry for poor text, Um using mobile phone to right.... |
Posted By: datonyb
Date Posted: 07 Sep 2017 at 3:05am
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" rel="nofollow - have you tried as i suggested click xmp and then click 2666 manually it should load the xmp settings for timing and volts but keep them when you select 2666 then test it to see if its stable you also say with one stick it does 1.35 does it do this with both sticks tested alone ? if one will and one wont then thats the problem a dodgy ram stick ------------- [url=https://valid.x86.fr/jpg250] [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Posted By: gabrimor
Date Posted: 07 Sep 2017 at 6:44am
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Yes, I tried xmp 2666, 2400, 2133. None have worked. Tested both sticks, one at a time, with 1.35v. Both worked. Still no dice with two sticks at 1.35v, no matter the frequency. I'm sad, cause the shop wont accept change the motherboard, cause its working.... |
Posted By: ket
Date Posted: 07 Sep 2017 at 10:05pm
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Corsair RAM truly is horrible, often made with ICs that just barely scrap over the line for what they are rated for. So much as changing a memory timing from default down one notch can cause a no POST or BSODs, really awful stuff, which is why I will never recommend it to anyone or review it. Just a FYI for you in the future, basically buy any RAM that isn't Corsair. Regards your specific problem, it is very unusual. If you haven't done so already; 1. Updated the UEFI to the latest version, power down, remove power cord and CMOS battery, press power button 2-3 times to discharge capacitors. 2. Test each DIMM module in each DIMM bank individually @ 1.35v 3. Swap DIMM banks, if they are in A2+B2, swap them to A1+B1. If I remember correctly thats the config needed on Asrock boards to run memory in dual channel mode. This will at least eliminate the possibility of your sticks being dual rank instead of single rank, although its highly unlikely that 8GB kit is anything but single rank. 4. Try setting the primary timings manually to 15-17-17-35 If that doesn't work and you are able to, send the memory kit back and get literally any other memory kit. It does seem like it is the memory kit that is the problem here I have never, ever, had a board refuse to POST because of the memory voltage I set although I have had memory kits on rare occasions refuse to work with voltage I set. |
Posted By: wardog
Date Posted: 08 Sep 2017 at 3:02am
I've never understood the rabid following Cursair maintains. |
Posted By: datonyb
Date Posted: 08 Sep 2017 at 5:14am
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" rel="nofollow - availabilty for consumer mark ups for stockist price for consumer i agree i dont think it excells as ram myself but i did used to favour it with ddr2 ( xms2 used to be a safe bet for the money) i still feel blessed by the gods that i managed to overclock some ddr4 2400 corsair lpx to 2933 on a ryzen 1600 system a week or two ago ,and on the same brand motherboard last weekend got another system to click xmp directly at 2933 with the 3000 lpx sticks (it is what a consumer expects but dosnt often see on ryzen at the moment) what choice do we have ? gskill tridentz has seen prices skyrocket in the UK since ryzen launched (well the samsung sticks at least) ------------- [url=https://valid.x86.fr/jpg250] [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Posted By: ket
Date Posted: 08 Sep 2017 at 9:30am
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That makes two of us. Whenever I've had the displeasure of using a Corsair kit it has always been any order of magnitude inferior to any other RAM kits I've tested, wether that be G.Skill, Mushkin, when they were about Cellshock, and more often than not even generic kits. Unless you are buying Corsairs most expensive RAM it's a real grab bag of utter dung and absolutely not worth it. The kits that are £/$10 more are so for a reason, theres actually at least some quality in those kits.
Honestly, buy any other brand or even generic and you'll have less problems getting it to run with Ryzen than a Corsair kit. Thats coming from someone who has had quite a few chats about how problematic Corsair kits are on Ryzen and numerous users coming to me with Corsair kits not working on Ryzen hoping I have some timings for them. It's generally agreed to stay away from Corsair if you have or plan to get a Ryzen system. In my case I'd take it further and say don't bother with Corsair at all go with any other brand, pay the bit extra and get a kit that isn't made with bottom of the barrel ICs. I've heard a lot of stories over the years about Corsair overclocking ICs out of the box so to speak and selling them at higher labelled frequencies. Make of that what you will. |
Posted By: parsec
Date Posted: 08 Sep 2017 at 11:33am
Just FYI, the A2 and B2 slots are the primary slots that should be used for dual channel mode, when using either single or dual rank DIMMs, on ASRock Ryzen boards, and the majority of other ASRock boards. The exception to this is the X99 and now X299 boards, that should have the A1, B1, etc, slots populated first. ------------- http://valid.x86.fr/48rujh" rel="nofollow">
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Posted By: parsec
Date Posted: 08 Sep 2017 at 11:45am
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Have you cleared the UEFI/BIOS with the jumper on the board at any time while testing your memory? If not, you need to do that now. Also do a Load UEFI defaults when you get into UEFI after it is cleared. When over clocking memory, we know we need to increase the DRAM voltage to allow the memory to complete POST. If increasing the DRAM voltage causes a POST failure, which we still don't have any clue about the cause, not even POST beeps that I asked about, I would only dismiss the board as bad if it did that with more than one model of memory. I'm very surprised that this memory runs at 2666 at 1.21V at all. For the two Intel systems this memory was designed for, X99 and the 100 series chipset boards, any memory speed above 2133 is a memory OC. There is no chance this memory could operate a 2666 at 1.21V on any of those Intel systems. What are you using to check the DRAM voltage when in Windows? When you set the DRAM voltage to 1.35V with A-Tuning, did you check what the DRAM voltage is with another program, like Aida64? ------------- http://valid.x86.fr/48rujh" rel="nofollow">
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Posted By: ket
Date Posted: 08 Sep 2017 at 6:47pm
Thats the one, I knew it was A2+B2 or A1+B1, hard to remember sometimes with so many configurations rattling around in the ol noggin. You test / read as much tech as I have it all blurs in to one a bit sometimes. |
Posted By: gabrimor
Date Posted: 08 Sep 2017 at 7:31pm
Hi, First of all, thanks guys, you`re trying to help me. CMOS properly cleared and UEFI defaults loaded. I did this way and no positive results. When I set voltage to 1.35v, the mobo won`t post, and there are no beeps. It posted, during the tests, 4 or 5 times, but fail next boot. One important thing: It won`t work even with memory at 2133. It`s voltage problem only. Are you surprised with the RAM working 2666\1.21v? Yes, it is something hard to understand. As I said, it passed Memtest, Asus RealBench, Windows Memory Diagnostic, Prime95 Blend. Failed Aida64 in 10 seconds...... About voltage measuring via windows, I`m using Ryzen Master. After the system starts, I get 1.21v. When I set 1.35v with A-Tuning, Ryzen show me 1.35v. Can I trust A-Tuning is really changing the voltage? Aida64 stability fails, anyway, but I`m not considering at this moment. One last thing: I have 9 builds and I never seen something like this. I don`t want to extract all the juice of the sticks, I`m trying only to set the correct voltage. |
Posted By: datonyb
Date Posted: 08 Sep 2017 at 9:07pm
i dont buy corsair for ryzen, i bought gskill for mine I DO have to try and get corsair or whatever working for friends when THEY buy corsair  in fairness the last two ryzen builds i have sorted out both used corsair and it couldnt be criticised allthough in fairness they were both fitted to another brand of board which does seem to have a very good bios to support corsair ram ------------- [url=https://valid.x86.fr/jpg250] [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Posted By: ket
Date Posted: 08 Sep 2017 at 9:10pm
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This is definitely one of the oddest things I've heard in 22 years of being involved with technology I think we are just going to have to keep taking baby steps until the problem can be isolated. The next thing I would suggest is to run HCI Memtest, opening enough instances to fully utilise your RAM if you use the free version, and let it run for at least 2-3 hours then see if it reports any memory errors. As you say 2133Mhz is even problematic right now my prime suspect would be the memory itself just not playing nicely. |
Posted By: parsec
Date Posted: 08 Sep 2017 at 10:33pm
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Sorry just asking, do you have a POST beep speaker connected to the board, and the POST beep option enabled in the UEFI, Boot screen? Otherwise no POST beeps. Can you trust A-Tuning? Can you have A-Tuning and Ryzen Master running at the same time, and keep changing the DRAM voltage in A-Tuning to various values, and see it shown and changed in Ryzen Master? Or another program like HWiNFO64? All we have are the monitoring programs in Windows to check voltages, but now we can't trust them? A-Tuning can somehow fool those programs? Does the AIDA64 stress test fail quickly with the DRAM voltage set to 1.35V in A-Tuning? Do you have the AM4 Advance Boot Training option enabled (Auto = enabled) in the OC Tweaker screen? If you do, disable it as a test. It hasn't helped the memory speed on my Ryzen PC. Did you ever try putting both DIMMs in one channel as a test? Using A1 and A2, or B1 and B2? Did you try removing the CPU and reseating it again? No bent pins? Unless something is shorting one of the DRAM slot contacts under the board, or a CPU pin problem, it's either the board or the memory. ------------- http://valid.x86.fr/48rujh" rel="nofollow">
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Posted By: gabrimor
Date Posted: 12 Sep 2017 at 6:45am
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" rel="nofollow - Hard troubleshooting.... I did some tests today and I found, in this following sequence: 1) Using the two sticks at the A Channel, I can work with 1.35v, or any voltage. 2) Using the two sticks at the BChannel, I can work with 1.35v, or any voltage. 3) The problem, so, happens when I use the sticks in the two channels.... Odd behavior? So, after this, I decided to test the sticks one by one, doing Aida64 Memory Stability Test. And I found: 1) Using the first sitck, I pass the test. 2) Using the second stick, it fails. 3) Testing again, with the RESEATED second sitck, it fails again. The second stick is defectiive, I'm sure. Ok, now I found something. But what the hell is the relation between this, with all the voltage problems I had???? I'll try to solve this with the shop, or with Corsair, but I really can't associate the problem with the defective stick, with the voltage problems I had........ Thanks!
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Posted By: datonyb
Date Posted: 13 Sep 2017 at 1:18am
see if they let you upgrade to gskill flareX or even tridentz geil now do very well priced specific ryzen/am4 ram and team ram seems to behave very well with am4/ryzen ------------- [url=https://valid.x86.fr/jpg250] [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Posted By: gabrimor
Date Posted: 13 Sep 2017 at 1:36am
| " rel="nofollow - And what about Crucial Ballistix? |
Posted By: datonyb
Date Posted: 13 Sep 2017 at 4:15am
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i have no knowledge or data on the crucial im afraid another good tip is to see what ram other people have used and what speeds they get on a database called rymem https://rymem.vraith.com/" rel="nofollow - https://rymem.vraith.com/ this guy right from the start set this up to help everyone with ryzen ram in the very early days you can search by your motherboard and the results come back in a list clicking on them should take you to a cpuz report showing actual speeds and timings of the brand of ram actually tested on your board heres one guy got the ripjaws to work at 3200 http://valid.x86.fr/paid9c ------------- [url=https://valid.x86.fr/jpg250] [/url]3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold |
Posted By: ket
Date Posted: 13 Sep 2017 at 7:11pm
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As suspected, a dodgy RAM stick. All kinds of odd things can be seen with faulty hardware in the case of the bad memory stick the faulty IC likely faults out completely once is reaches a certain voltage. I'd recommend replacing the kit with some G.Skill memory, on every Asrock board I've tested G.Skill memory has always worked extremely well. |
Posted By: gabrimor
Date Posted: 13 Sep 2017 at 7:24pm
| " rel="nofollow - Sure, but how can you explain the fault ic can reach any voltage when not in dual channel? Note that the voltage problem not happens when using the stick in single channel setup. |
Posted By: ket
Date Posted: 14 Sep 2017 at 2:52am
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That is the strange part, shooting from the hip I would guess maybe some of the SPD data stored on the stick has become corrupt. Theres a couple other things I could guess at as well, but they would be just that, guesses. No real way to know with more certainty unless I was to test the problematic kit. |
Posted By: gabrimor
Date Posted: 15 Sep 2017 at 7:50am
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Folks, At this time, We don't have so much to talk about, but I think we can't close this topic right now. I'll RMA the RAM and then, when I receive the new kit (If I receive), We'll talk about. What I can say, at his moment: Using the good stick, alone, in single channel, it's working very good. Right now, I'm testing 3066mhz@ 1.35v, and it's working. I'll test later, with the default asrock voltage, 1.21v, just for curiosity. Thanks!
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