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TL;DR: physical DIMM is causing 'hardware reserved' issues, with the DIMM itself being 4GB and causing a 6GB reservation (50%) when slotted combined with 3 other DIMMs. Booting with that particular DIMM (solo) is unsuccessfull, but it is detected when slotted combined with the other 3 DIMMs. Windows Memory Diagnostic tool does not report any issues on any of the DIMMs. Futhermore, a re-occurring (related?) issue with non-paged pool ammount can take up to 75% of the available RAM, but does not always occur. Advice requested on next diagnostic steps. Dear reader, I have had the following problems for quite some time now, yet never had the time and energy to really solve it. One of the DIMMs is causing a 50% hardware reserved RAM problem, when taken out it is solved. However, a second problem of large non-paged pool memory can take up to 75% of the available RAM sometimes. They are probably related, yet the second issue still occurs without 'faulty' DIMM from the first issue. I would like understand the cause behind the first issue, and advice on how to solve the second issue. System and Background This is my old system, has run with W10 before. Is has been through many hardware changes, but always stable in its current configuration (excluding videocard, but I'm not supsecting that aspect to be the cause). Phenom II X4 965 BE (stock) MSI 970 gaming 2x2GB GEIL DDR3-1300 2x4GB Crucial Ballistix Sport DDR3-1600 The memory kits have been matched on voltages and timings, and I have never had any issues using these two kits together before (has been used for ±20 months with aforementioned configuration). It is a clean install of W10 Pro (1803) on a brand new HDD (previous one failed), and is primarely used as a multimedia machine and webbrowsing. Issue #1: DIMM causing 50% hardware reserved RAM For quite a while this system is/was having a large RAM hardware reserved buffer, a total of 6GB reserved (50% of total). Initial moment of this problem starting is unknown. After some basic research and tests (Memory Diagnostic tool, checking processes etc.) I started playing around with the physical DIMMs themselves. With all 4 DIMMs in use, 6 out of 12GB is reserved. After testing all possible configurations of DIMMs (single, dual, triple, quad) in different DIMM slots (1-4), I found that one of the Ballistic DIMMs appeared to not work solo (no windows boot). Using it together with any of the other DIMMs, it caused a 50% RAM reservation (no matter the total slotted capacity). But when excluded from any other configuration possbile (2;2x2;4;4x2;2x4;2x4x2 etc.) only ±40MB is reserved. BOOT Advanced options > Maximum memory is (and was) off. Meaning that I am currently using a DIMM configuration of 2x4x2, in DIMM 1-3, for a total of 8GB. In this case, removing a DIMM actually gives me more usable RAM.... > This issue has been 'solved', but not quite understood how a 4GB stick can cause up to 6GB of hardware reserved RAM. I would like to know if I can somehow test if the particular DIMM is actually faulty/broken, even though it is detected (and accepted?) by Windows. Issue #2: non-paged pool memory leak (?) After taking out the 'faulty' DIMM from issue #1, I still noticed a suspected memory leak. RAM usage of processes in Task Manager and Resource Monitor did not add up to the reported total usage in both the Performance tab of Task Manager and CoreTemp RAM usage. I ran RAMMap, which drew my attention to a massive 4GB+ in non-paged pool memory (something I didn't pay attention to in Task Manager). It has even reached 6GB (75% of total RAM). I can literally see it accumulate from after the first seconds after booting to desktop. For example, last time it started at ±100MB and stopped at ±440MB. I don't know if this number is normal though. It appears that it does not always occur and/or continue accumulating linearly plotted against time passed, sometimes the non-paged pool memory stays at ±440MB. This issue also occurred during the initial 4-DIMM configuration from issue #1, but I thought it was related to the reserved RAM and therefore did not look at it more deeply. > My next step is to try and identify the leak with Poolmon, followed up with Kernal Debugger. I have, however, no experience using these tools, and it seems these are mostly used in server scenarios. I was wondering if someone with more Memory-related experiences has some input on my observations and the next steps I'll be undertaking. I have read through some articles, one of which is http://woshub.com/huge-memory-usage-non-paged-pool-windows/. I will also try the network adapter driver tips, but again, these tips seem most applicable for server scenarios. Thanks in advance. Cheers, JB

So Im building a new rig and I ran into some major RAM stability issues. First I noticed Chrome acting strange, then data corruption. Therefore I ran the AIDA64 RAM stability test and it failed in the first minute. I have 4x8GB of 3200 DDR4 Patriot Viper 16-18-18-36 RAM sticks so I decides to troubleshoot the sticks in pairs. I took the first 2x8GB pair and ran a 30-minute (I will run a full 12h test after I solve this issue) AIDA64 stability test again and it passed. I took the second pair of 2x8GB and it failed in the first two minutes. So the issue must be in one or more of those two RAM sticks in that pair. To be 100% certain that the problem lies in RAM only and not the MB, I decided to put the first pair that passed the AIDA64 test in different DIMM slots (not optimal ones) than before. I ran into another issue. I couldnt configure them to boot up in 3200, 16-18-18-36, only in 2133, 15-15-15-36. Now my question is... Is it normal that the MB doesnt allow "overclocking" (setting to actual frequency values this RAM should run at through a-XMP) 2 sticks of RAM if they are not put in the optimised DIMM slots? Or is it another issue and the faulty RAM isnt all thats wrong here? I ran AIDA64 anyway (on that 2133) and the config came out stable after 30 minutes. I will test individial RAM sticks in that faulty pair now. I will update this post after I do so. CPU: R9 3900x MB: msi x570 Gaming Plus RAM: Patriot Viper 3200 4*8GB GPU and PSU irrelevant. Cooling is sufficient.

title says everything. The model is HX424C15FB2/8, planing to get 2 of those and make them run dual channel. Now why im getting those is because they are alot cheaper in my local shop, and if i can get them around 3000mhz then im happy.

Quickfire question: Have the more recent microcode/BIOS/AGESA updates for Ryzen 1st-gen boards alleviated the occasional poor performance when all 4 RAM slots are filled? Thinking of doubling my RAM with the same memory kit to run a couple VMs.

I tried looking but couldn't find anything concrete as many different each time I looked at another post. So I have a 5.0GHZ OC on a 7700K and was going to enable the XMP profile on my RAM. EVGA SuperSC DDR4 3000MHZ 2x8GB. DIMM slot 2&4. Will setting an XMP profile mess with my CPU OC or is settings my own timings and voltage better to learn?

Hey all, Looking to upgrade my RAM to a 4x8GB 4000MHz kit. Looking on the QVL for Ryzen processors looks as though in principle, the motherboard supports the RAM. but doesn't support a 4-DIMM installation of the memory, which kinda defeats the object of having 4x8GB sticks? Anyone had any experience with this, and was it okay to install the 4 DIMMs as normal? Cheers, Rhys PS Sorry for the handwriting on the screenshot!

Hey guys, Right now I have 2 ram slots on my motherboard being used by Corsair - Vengeance LPX 8GB (2 x 4GB) DDR4-2400 Memory. I would like to know if I would run into any performance hindrance if I install one more ram module into the 3rd ram slot. Is this even possible? What if I install the same ram kit but with different memory timing? (example here). Would it also be a problem if I install a different ram size but same kit? Ex. 2x4gb+1x8gb of Corsair Vengeance DDR 2400. Let me know thank you,

I recently made a ryzen 2700x build, and i'm trying to get the most out of my memory. I got a kit of G.Skill Ripjaws V which are rated for 3200mhz. Unfortunately, they use Samsung D-Die which are only stable at 2933mhz on this system. The speed is fine for me, i'm just wondering how much i can tighten the latency. with the XMP settings for 3200mhz, the timings are 16-18-18-38. I'm fairly new to RAM overclocking, and I'm wondering what kind of timings would be suitable for this memory at 2933mhz

I want to run 3 sticks of the same 4g ddr4-2666 ram in my ryzen build using the asrock b350 pro4 mobo. Is this even possible? can i do this?

I just had a quick question, would a sodimm to dimm adapter cause latency compared to just using a dimm module?

Have you ever wondered if you could put laptop memory into a desktop? No? Let's do it anyway. What could go wrong? Buy SODIMM to DIMM adapters on Ebay: http://geni.us/FqMvHfQ Buy DDR4 RAM on Amazon: http://geni.us/KyL0d

Hi, I recently watched the ltt video on sodimm to dimm adaptors and had a revelation, realising I had 16Gb of ddr3l sodimm memory from an old laptop sat around, and I was working on a ddr3 pc so this was perfect to try. I had 2x8Gb sodimm sticks so to test I got one adaptor from eBay, a generic sodimm to dimm adaptor, and went to try it. Putting one of the 8Gb sticks in it and putting that as the only memory in the system. I tried to power it on but got a loud succession of three beeps (seemingly meaning no ram or something similar) and no post. I tried swapping the socket and also which 8Gb stick I used but to no avail. Confused, I then tried it in a low voltage only optiplex machine, and it works perfectly. I believed that the 1.35v ddr3l was also compatible with normal 1.5v sockets but is this not always the case? Any troubleshooting help for this would be much appreciated as would love to upgrade the main machine from 6Gb to 16Gb for that added performance, thanks in advance.

Hello community, any help will be appreciated. Cpu: i5-6500 (non overclock) Fan: Cryorig M9 Mboard: Gigabyte H170 ITX/wifi and H270 ITX/wifi RAM: Ballistix Sport LT 8GB Kit (4GBx2) DDR4 2400 MT/s (PC4-19200) DIMM 288-Pin - BLS2K4G4D240FADG Non EEC 1.2v 116-16-16-39 DDR4 PC4-19200 • 16-16-16 • Unbuffered • 512Meg x 64 ,LEAD FREE GPU: EVGA GTX 1060 6GB SSC PSU: Seasonic 550W HDD, Seagate 1TB - 7200 RPM SSD: INtel 530 256GB Optical Drive ASUS 1 intake and 1 exhaust fan All started suddenly with 5 beeps and restarts, no previous or recent changes except the new Cryorig M9 Cpu Fan months ago, after trying alternating the Dimms my conclusion was that slot 1 in Mboard was compromised since both DImms worked fine in slot 2, got a brand new GIGABYTE H270 Mini-ITX Wifi and naively placed both Dimms and no post or video in initial attempt, hours of clear cmos and disconnecting BIOS batttery without any result regardless if only one dimm or both, finally after doing another Clear CMOS with a paper clip got post with only one dimm, BIOS welcome was a popup message saying that it was recovering from a failure I can't recall exactly what it said. Tried both DIMMs again and no go, had to do CLEAR CMOS again to get a 2nd welcome saying System or BIOS was just recovering from failure so then Tried older Mboard H170 Mini ITX Wifi and no luck at all even tho I was playing the video game Warframe on it the night before with only 4GB of RAM and in slot 2. now I don't know if both Motherboards are compromised, or something going on with the Dimms when working together, take in consideration a month or 2 ago my significant other got Blue screen saying that ''PC ran into a problem and needs to restart, we're collecting some error info and then you can restart 0%'' but after that day all worked fine without any jumps. Any clues?? or guidance.. EDIT: Is around 2 years old kit, but I guess I'll have to MEMtest one dimm at a time, I tested it like a month ago and no errors after more than 30 passes and 45mins.

Piggy backing off of this 2 year old post, has anyone seen, read, or otherwise heard of a DDR4 SODIMM to DIMM adapter? I found this guy but it is unclear as to what extent it will work as it seems to only be for "testing" purposes. Reason I am asking is because it seems much more affordable atm to be able to find and purchase laptop DDR4 memory vs desktop DDR4 memory. I literally just found a 16GB listing of SODIMM for $40 vs the $200 ish price for the desktop equivalent. I'm sure many of you will scold at this post, however this concept has been proven to work with past generations, just not the latest generation... YET! HB

I am building a pimped out gaming rig and I need 32 240 pin 32gb ddr3 dimms (Yes ddr3 not ddr4) But all of the 240 pin ddr3 dimms I have found are 16gb if anyone has found 32gb ddr3 dimms on amazon or newegg please send me a link

I am trying to make a pimped out rig and the ddr3 dimm slots on my motherboard are 240 pin, will a 288 pin ddr3 dimm work?

I'm having an issue where my PC is not registering my full 16GB of ram for some reason. The computer is using a 6 slot motherboard with 4x4GB Ram. It was registering just a few days ago but after I transferred all the hardware to a new case I had this issue appear. I checked the bios and it is only registering 8GB, however in task manager and speccy it is recognizing I have 16GB plugged in (only 8GB usable). I have individually checked and determined only the middle two slots of the 6 will allow the pc to boot to bios, and that all of the sticks are working (tried them separately to make sure). I'm at a loss because bios says 8GB but windows is telling me 16GB with 8gb hardware reserved? I've gone through all the general windows tweaks for Ram recognition and nada. I was thinking maybe a dead dimm slot but it's weird how windows/speccy can recognize all of the ram is slotted. Any suggestions are welcomed.

Sooooooo, my screen dimms when my mouse is on it but brightens when my cursor is on text or my other monitor, and it's anoying as hell! GTX 980 SC Ryzen 5 1600 some 1080p 144Hz AOC monitor Windows 10 Pro (I think) 64bit

Hello, I am writing out of confusion. About 2 weeks ago, after having many BSODs, I decided to test each of my ram sticks with memtest86. One of the ram had hundreds of errors and so I decided to return it for a replacement as that meant it was broken. After a frickin week of waiting for it to arrive at it's destination, another 5 days pass and voila it's today. The store's technician who is checking the ram to verify that it is broken calls me and tells me that they have found no problems, keep in mind they used memtest86 as that's what I told them to use. That's impossible, I say because I did find errors. But he told me that they tested them together, which didn't make any sense because I also tested them together and found problems, now that I'm writing it I wonder if they he tested them in single channel, idk if that will make a difference but I am just wondering, so I told him to check each one alone and he said he would do that. Anyways, out of fear that I spent 2 weeks in my old slow laptop for nothing, I searched what happens if I have a bad dimm slot. None of the "symptoms" applied to my case. I am just wondering if they are scamming me or I am wrong.

I've been running a 16GB (2×8) kit of XPG Spectrix D60G DDR4 3600MHz CL17 memory for a few months now and a few days ago decided to purchase order another kit of the same memory online. Link to the memory: https://www.xpg.com/en/feature/606/ But i just realised that the kit I ordered is a 3600MHz CL18 one instead of CL17 like the kit i have been using, will adding these dimms cause any issues? For my motherboard I have the B450M Steel Legend, https://www.asrock.com/MB/AMD/B450M Steel Legend/ It doesnt support 3600Mhz memory speeds, so I tried to manual oc the memory as far as I could go and I've previously managed to get my kit to run at 3433 CL14 but it would very occasionally crash things so i dialed it back to 3400 CL14 and it's been running fine since. (both frequencies run at 1.4V) Since I can't run them at their stock speeds and am running them lower than their rated speeds anyway, would that further decrease the odds of any issues coming up (if any)? What would happen if i decide to upgrade my motherboard that can support higher speeds in the future and reuse the kits? Would it then be an issue that i'm running these 2 different kits? Any help would be greatly appreciated, thanks in advance. *I went with the 3600MHz kit even though my motherboard doesn't support those speeds because the price difference between this kit and the 3200MHz one was literally less than 5 USD (after conversion)

Hi Everyone! I just wanted to ask what is the difference of DIMM-R and DIMM-S. And if there is a difference in performance between the two if I insert my ram stick in there. And if it is alright to leave my RAM stick in the DIMM-S slot. I am asking this because my laptop was not posting earlier, there was no Asus startup sound and logo. So I tried to move my RAM stick that was initially in the DIMM-R slot to the DIMM-S slot. And it booted up and my laptop works normally now. Although I have not tried any heavy tasks yet. Thank you very much! Specs: Asus Strix Hero II (GL504GM-DS74) CPU: i7-8750H GPU: GTX 1060 6GB RAM: 16GB

on page 18 on the link, when it says HP 4GB DIMM, does that mean i can use any RAM sticks that are from any manufacture and the limit is 4GB per stick? I plan to run 8GB 1333mhz dual channel. http://h20195.www2.hp.com/v2/getpdf.aspx/c04168353.pdf

Hi! Quick question (cuz i knows this forum rocks I´m putting this memory kit (CMD16GX4M2B3200C16 Corsair dominator plats DDR4 3200 2x8Gb) into this motherboard (ASUS Z170 Deluxe). Will i see ANY performance loss or slightest instabillity issues if i decide to upgrade in the future and ad another set of identical memory kit thus getting 4x8Gb? Yes i will OC modestly but not the RAM. The build: 6700k HXi1000 Custom watercooling loop EVGA GTX 1080 M.2 950 Pro 512Gb Cheers and thanks for any and ALL input!

So i was looking at an i5 4440 CPU, and on ARK it only said it supported up to 2 memory channels, so what does it mean by that? It can only hold up 2 RAM sticks or can it hold more because the motherboard I'm looking at has 4 RAM slots, and now I'm wondering if it would just be a waste of money to get those extra 2 RAM slots. Thanks!

Hey. I have MSI godlike motherboard. So 8 DIMM slots. (Am I using that correctly. I speak of the RAM.) Due to one defect RAM, the store sent me a whole new set of sticks. And specifically told me I did not have to return the defect product. (Long story short.) I originally had 4 x 8GB sticks. One failed, and they send me 4 new sticks. So I have 7 sticks. And 8 slots. Should I use all 7? (I know I do not need anywhere near that much RAM. But I will probably have to make this computer last at least 10 years like the last one I had. So I might as well just cram as much as possible in there right away.) Or should I use only 6? So they are in pairs? Some seem to say always do pairs. Others say, it does not matter. It is mainly used as a gaming computer. But I do some heavy task work on it as well.