Mismatched ram timings. I've found that most memory works most of the time.

Mismatched ram timings Given that a typical Civ game lasts until the heat death of the universe OP will likely see It sounds like your ram timings are different now you should never mix ram because timings and ram power requirements 1. In other words, you don't run something like DDR2 or DDR3 system RAM together, and while required timings may be different between various memory sticks in the system, so long as timings are all kept in a range compatible to all of the sticks being used, you can go that route. On AMD systems it can have a notable impact on performance. As I understand from other threads, my laptop would run the slowest settings, so @ CL22 2666 for both? Timings Given through a series of numbers, for example 4-4-4-8, indicate the number of clock cycles that it takes the memory to perform a certain operation. Reactions: lexluthermiester. However, given 1 stick is single channel, adding additional memory will allow for dual channel, giving twice the memory bandwidth. Should I put them in a way that slots 1&2 are the old pair and 3&4 the new pair or the other way in which 1&3 are the old pair and 2&4 the new pair?As the kits are advertised at the same speed and timing, the problem will be in secondary and tertiary timings. if it was a PC I would suggest buying a set of 16gb of ram and replace both sticks with it if you can get ram with same timings, I would buy one stick as laptops generally let you use mismatching ram provided timings are the same. Your most likely scenario will be you get the 12gb RAM; however, and no matter what if that 4gb stick running @2400 pairs with the slower ram it From past experience, at best the ram will be clocked down to the rated speed of the slowest modules. Putting in a mismatched stick will drop your system memory down to single channel mode, slow speeds, and horrible timings (if it works at all). If you are going to mix the RAM, at least put the 16 GB sticks in the corresponding slots (0 and 2) and the 8 GB in the slots (1 and 3). This video One common compatibility issue is mismatched RAM speeds, timings, or voltage requirements. The speeds and timings of ram kits are just settings guaranteed to work. The RAM I want to buy is G. You'll have to try and see. Most RAM vendors have lifetime warranty on their RAM kits. I have two stick of ram which are PNY XLR8 Gaming EPIC-X RGB 8GB DDR4 3200MHz which timing is 16-18-18-38 in DIMM 2, 4. Artas1984. I’ve been running two sticks of ram for the past year (G. The part number matched (cmz8gx3m2a1600c9) Turns out the new stick have a different TrC timing and its giving me problems. Ultimately clock speed with anything, whether it’s a CPU or ram is what is usually the primary variable altered for OC. I have 2x 1gb sticks on Patriot DDR2 800 PC2 6400. 45v? I know I am pushing it with CJR but will run a few hours of games to see if the gpu heats up the ram before it errors out. Arguable timings are a little more important and beneficial than clock speed, so your best to let that be. Should I use both sets in the system or stick with 16gb of RAM? Archived post. The part numbers are identical aside from the part that indicates the speed. What Ram speed and timing "As for dual-channel, you should be able to do it as long as you keep each matched pair in a separate channel" - this is backwards. The memory controller is going to default to finding the lowest common values between the RAM chips, and use those settings to run. 35v. Apr 11, 2021 #6 Upvote 0 Downvote. g. I bought 1 stick of ram @ 3200mhz then when I bought another of the exact same ram (make model timings everything) and used it in dual channel I could only get 3000mhz. Jan 4, 2016 31,723 4,469 Direct Answer: No, RAM doesn’t have to match, but it’s often recommended and sometimes essential for optimal performance. Latency is usually shown on spec sheets as CAS or CL. I doubt XMP will work correctly as they have mismatched timings, but you should be able to run them at 3200-16-20-20 at 1. I've mismatched RAM in every way imaginable. They're both CL16 but those other timings slightly vary. Ram capacity that is matched in each channel will operate in dual channel mode while the odd capacity will operate in single channel mode. So, can I mix Thermaltake TOUGHRAM Z ONE 8GB 3200 MHz DDR4 CL18 which timing is 18-19-19-39 or Thermaltake TO However, back in the day, I only got 8 Gigs of RAM, which is starting to feel pretty damn limiting in a lot of things. mismatched ram will only run at the slowest speed of both ram kits. Updated 4000 timings to 16-20-20-38 1. the mismatched timings are like the bike and the vette, they both can do the job, but since they aren't in your case, both RAM chips will run at 1333 (timings not sure). If you can boot, Run memtest86+ Installing mismatched RAM can cause system instability and will force the faster RAM to run at the slower speeds. If I recall correctly mismatch happens right at the edge of stability. I have not found this flex capability for ryzen. r/ASRock. But you already have another module. 7M subscribers in the buildapc community. If they are not quite the same but your voltage and CAS timing are the same, and the sub-timings are different, you'll still get pretty good performance from mismatched kits. I have 4x4gb sticks of DDR3 ram, all 4 are the same manufacturer, same series even, G-skill ripjaw X, every spec is identical except for the clock speed. And your laptop thankfully supports plenty of ram (16GB) Reactions: dimebe. So I am trying all sorts of things and then I noticed the difference in memory timings. My laptop with a Ryzen 3500u does this. Whirlpool Forums Addict reference: whrl. For a laptop, you'll usually need to remove the bottom panel. Matching the timings should help with stability. This only occurs when 4 perhaps screenshots would be easiest, of your full ram timings and voltages please. 75/day) Location Midlands, UK There are a couple memory timing tools around, and lots of YT vids to research. The 8gb stick is 3200mhz 1. An unofficial forum for discussion of ASRock Products, News, BIOS updates and Mismatched RAM . Oct 12, 2015 78 0 10,530 All I know is that the RAM I was looking to buy was different from my current RAM in all these respects. Now I want to buy another ram, but this ram is stock out currently. The question of whether RAM modules need to be identical hinges on a few crucial factors, and the simple answer of "no" while technically correct, doesn’t fully capture the nuances of the situation. 43v IO/SA 1. This is why mixing and matching ram is not recommended. So I bought myself a 16gb DDR4 2666 CL19 to put on the free slot of my G14. /ambvbflash -p 0 card0mod. lexluthermiester. My personal thoughts are buy two new sticks with the same timing or even two new 2x8 modules, but that's because of my experience. Ram is validated as a kit. It always worked, Question about RAM and mismatched timings on the same manufacturer, and series of sticks. I'm not sure if this is going to be unstable and cause crashes or something, but for now I'm happy that I am able to get my RAM speeds back. Newer motherboards have more of a fault tolerance when it comes to mismatched RAM. Sort by date Sort by votes T. dufflover. Your chances of actually damaging something from trying are slim to none. I kept Mismatched TrC timings (corsair vengeance DDR3 1600) I just got another 8gb of corsair vengeance ram. Memory . Here is a g. Some motherboards have a work around for mismatched RAM, some don't. Then try Stopped memtest and realized bios was only reading "safe" timings for the Corsair ram. I tested many a RAM kit on X99 and never once saw timings change due to a reboot. but as already mentioned, sometimes there might be a weird compatibility hiccup. Do not worry too much It should be fine as long as you don't mixed ram on the same channel. Rerunning memtest So I have to add RAM to slots 1 and 3 if I want dual channel mode, to avoid leaving a channel empty. Poncke Distinguished. You can manually tune the timings but you will never reach the full potential of either stick if to they are mixed. Forums. There's a sale over on r/buildapcsales for 2x8GB G. This is why we advise to use matched pairs of RAM, as physical addresses are interleaved between the two channels. Those are usually worse than what one set of RAM can achieve. Joined Jul 5, 2013 Messages 27,921 (6. x (micron) I've tried adjusting timings (even though same timings and voltage on all 4 sticks), alternating slots and other stuff. Jun 26, 2011 2,483 493 22,340. 22 = 5,498,181 turns to break even. Are RAM timings important for gaming? What is the best RAM timing? Mismatched memory will do this as well. Put simply, they are derived from the combination of It will lock memory speed to the lowest speed sticks. I have 16 GB in my PC and do some pretty heavy things and never have a problem with running low on RAM. I have mismatched pair of 2666 and 3200 RAM. Additional comment actions. Feb 21, 2010 #1 I have two sticks of 2GB 800 bus rams. Best to buy a kit that matches exactly. Newegg says the CAS latency is 4, the timings are 4-4-4-12, and it runs at 2. Intel does have something called flex mode for ram. If the 2 kits are identical, then they would have greater success vs mismatched ram. I honestly don't know about the timings. The board only runs the ram at 2133mhz. 13/day) System Specs. Skill CL 16’s. Flash: sudo . Memory timings and latency also play a The problem with adding a 32GB ram stick is not so much the mismatched ram but that it’s higher capacity than the other 16GB that’s soldered. Impact On System Stability And Reliability. For example, mixing dual rank and single rank sticks in the same system can cause havoc on certain Ryzen memory controllers. On a desktop motherboard, they're usually to the right of the CPU. e. Some motherboards are very sensitive to mismatched ram. CPU-Z tells me the RAM is running at 3200 MHz with CAS latency 18? But then when I look at the RAM sticks individually, neither brand of RAM has compatible timings, so I have no idea how it is working. ,you don't need a more speedy ram ,cuz your current ram module will define the operating speed and timings. If you encounter compatibility issues after installation, it is recommended to remove the mismatched RAM modules and use only one size to optimize your system’s performance. /amdvbflash -unlockrom 0. One may be better then the other, use GPUz to see what each is running, then look up the one that is under performing to see if others are experiencing the same issues. Of course, I realize that was enormously stupid of me now. Discussion Hello everyone, this is kind of a weird one. Mismatch ram will always go to the slower speed if there is a difference. The only difference is the speed. You need to adjust the frequency and timings of your memory mix by hand (Due to the different characteristics of the modules you cannot simply activate a xmp/docp profile), which can be very time consuming => most likely parameters on How are timings and subtimings handled in mismatched ram modules? Build Upgrade I'm pretty sure I've read that in mismatched kits, the frequency is matched to the lowest. 35 IO/SA and 1. 35v 16-20-20-39 (KF432C16BB/32) Mismatched tPHY has a latency penalty, someone said like . The timing will be worse, especially the tertiary timings. 1 initial stick when buying and another stick after a year or 2. So, if the memory is at different speeds, they will run the slowest of the various speeds. PC with mismatched RAM but equal on the same channel upvote r/ASRock. Don't do that. I am just not sure this will work via XMP, you may have to manually set it up problem is, without XMP, all of the secondary and tertiary timings will be all wrong Issue is, the RAM would be as follows: Corsair ValueSelect CL15 2133mhz 1x8GB SK Hynix HMA41GU6AFR8N 2133mhz 1x8GB G. That said, when mixing and matching ram should default to the slowest common speeds. Hardware. The setup supports 3600 speeds. Is this true for every timing and subtiming as well? What if one stick is 3000mhz cl 15, and one is 3200 cl 16 or something? What To prevent RAM voltage and timings conflicts or mismatches, you should follow some best practices when buying or installing new RAM modules. crashes, BSOD), it is likely that they are caused by the mismatched RAM. It should be able to run DDR4 at 2400mhz. Fast forward to yesterday when I received the ram, i noticed the xmp timing was different from the current ones. For a desktop computer, you'll need to remove the side panel of your case. If everything is fine, just keep the RAM as it is. Speed. Do the read/copy speeds look okay? Worth it to try 1. 6V stable now :) the 13-13-13 timings I was running for a few weeks while I was trying to sort out stability issues (GPU overclock mainly but other variables as well) and now I can finally say at 2133 11-11-11, it is stable as a rock with my RX 480 overclocked to 1310MHz (1165mv) on the core, 2050MHz (1075mV) on the The RAM I have in right now is 3000Mhz CAS15 - G. If userbenchmark shows the correct timings, download HWInfo to double check the ram timings, because CPU-Z could possibly just be reporting the timings incorrectly. Harder on both the CPU's IMC(integrated memory controller is located on the CPU package) and most daisy-chain topology motherboards. My system is currently running without any problems but I'm kind of confused about ram timings and stuff so I was wondering if there is any optimizations I can do or anything wrong with my system at all. This means if its a 4 channel kit, all 4 sticks are validated to work together in that kit. Reactions: EarthDog. 2. View full post. This is important. 6 volts but I have mixed ram with no issues but I had to set the ram timings manually and voltage manually not auto because it's causes conflict no boot black screen or freeze look at the voltage When it comes to mixing RAM brands, one of the primary concerns is how it will affect the performance of your system. Mixing 16GB RAM with 8GB RAM can have a significant impact on system stability and reliability. "Dear Posterity, If you have not become more just, more peaceful, Looking closer at the memory I saw that my original memory is version 4. Force Delta, 16Gb x 2 DDR4 3600 CL 18) Out of convenience, i just bought a different set of ram because I couldn’t find a matching pair of G. The biggest downside of having mismatched ram is that you'll be limited by the worst of either kit when it comes to frequency/timings, aside from that it's mostly the same as overclocking a 2 dimm setup. And, ryzen is more sensitive to ram than Intel. Even if you did just use the two 16 GB sticks, that will be more than enough. In theory the timings are matched to the lowest stick, but in some cases a fast stick will not function properly at far lower speeds or timings. Apr 27, 2009 66 0 18,630. This will also give you a better understanding of how RAM kits work but in Its more or less the GPU equivalent of going into your BIOS and tweaking your DDR4/5 memory timings, I believe the settings live apply without reboot however I haven’t tried it yet. (i5-3570k) First set is 41 and the old set is 33. These timings include CAS Latency If you are using multiple RAM modules, make sure they have the same capacity, speed, and timings. I have DDR4 2133 ram stick with 15-15-35-50 timing, and i am about to order DDR4 2133 with 15-15-15-35 timing, so will it work together? Mismatched timings is asking for trouble. It's never recommended to mix RAM. 1209600 / 0. Reply reply you can do either as long as they are compatible with your cpu. SKILL brand, CAS 5, timings 5-5-5-15, 1. What is preventing me from installing the slower ram, overclocking it to the speed of the higher ram and matching the timings, then installing the faster ram? Thank you. Planning on building a computer but need some advice? This is the place to ask! /r/buildapc is a A friend of mine ran a Ryzen system with 40GB RAM (2x 16GB 3600/CL16, 1x 8GB 3200/CL18?) - not sure of the exact numbers, but the RAM configuration shouldn't have worked He ran a Valve Index and many 2D AAA games off that system without problems For best results, manually set the memory timings and speed to match the slowest RAM stick/sticks. With one being 3466 and easily OCing to 3600 I purchased more RAM from a different manufacturer rated at 3600 thinking it would work fine. Use RBE to change the memory timings to the 1500/1550 (yes I saved twice) Copy the modified ROM over to the rig Unlock rom: sudo . Yeah that’s what I mean, Ram is a big balancing act between capacity, stick quantity, timings and clock speed. The key timing parameters in RAM include CAS latency let’s explore how these timings affect the performance of the RAM module and how to choose the right timing for your system. Looking closer at the memory I saw that my original memory is version 4. Locate the RAM slots. For part number M471A2K43 I do appreciate that you need 32GB of RAM but all my spider-senses are telling me that you have mismatched RAM and that this is most likely Mismatched capacity on 2 pairs of matched RAM Build Help Every place I look just talks about matching a pair. RAM is finicky sometimes and different modules may or may not work together. Am I able to mismatch the pairs of RAM? Will my motherboard still run in dual-channel, with the timing and frequency mismatches? I figured this out after only saving my bios to the bios chip itself, having to reset it due to some un-POSTable RAM timings, and had to start over and reset everything by hand. Quick question: I know it is not advised to use mismatched ram but if you do it will automatically run at the slower speed. Mismatched RAM is likely to cause issues with XMP or even booting in general. Upvote 0 The mismatched RAM was the root cause of your issue. That said, when mixing and matching ram To know all the stock timings for your stick - go to CPU-Z to the SPD tab and look up your timings table for the 3200 MT/s module. If the timings are still reported as CL23, you should run memtest86 for at least one full pass of the automatic four pass test to see if you get any errors. If you do get it to boot with mismatched sticks remember to run it through some Memtest86 loops to make sure it's stable. pl/RKgrB. Another interesting thing would be to isolate the benefits from frequency and latency, i. Skill Ripjaws V 3200MhZ 2x8GB (I'll let you guess which kit I received) Should I bring the timings 2 Mismatched Ram sticks in dual channel vs 1 single channel stick . LDTheCourier Honorable. Anyway with the extra RAM it will be possible to further upgrade the systems but its going to be mismatched. None of the build videos I've ever watched have used mismatched RAM sizes because they generally build with fresh parts, not stuff they've had lying around. Intel is quite tolerant of mismatched ram. Joined Nov 18, 2010 Messages 7,607 (1. Ok, short question. Mixing 2 types of ram is not a good idea as it could become unstable. This is a pretty major improvement. I made a mistake and didn't really pay too much attention to the speed and timings. Followed up by subvalues being the same. ). The xmp/expo data embedded in the ram will be different. if not then you may have lost the silicon lottery, sorry bud. Jump to Latest AMD Ryzen 7 7800X3D - AsRock X670E PG Lightning - Kingston Fury Beast 32GB @ 6000 (Buildzoid timings) - Powercolor Red Devil 6950XT My CPU history Most likely a bad performance impact. You may just want to invest in another stick of DDR 400 RAM and sell the old stuff. I just completed running MemTest86, it took a little over 6 hours, zero errors. If I add some more RAM, it has to be in 2 and 4. 5 volts and some need 1. i had 4 x8gb gigs of corsair memory, both different timing but both 3600mhz but, i could only get 3200mhz out of the four sticks. Mismatched RAM Performance Question - CL22 3200, CL19 2666 . Higher voltage is usually faster, but low voltage generally means less stress to the CPU memory controller. 47/day) Location Rīga, Latvia After that it is best if all the critical values are the same (voltage and primary timings). Skill RIPJAWS. 3 x 2GB DDR3 Dominator 7-7-7-20 1600 MHZ 1. posted 2005-Dec-16 Just built a new PC and the 6000 speed RAM is reporting at 4800 when set to 6000 in ASUS AI Tweaker. Some say you need to power cycle your computer to allow These are literally made up examples of timings and might not represent actual timing numbers, just showing you an example of why you should buy all of your ram together and why you need to know about your ram if you're buying more at a later time. Archive View Return to standard view. New comments cannot be posted and votes cannot be cast. . Also, are you really running something that uses close to 16GBs of RAM? However, there can be some other quirks from running mismatched pairs of RAM. For dual channel, a matched pair of modules must be installed in two different channels so that memory operations can be performed in parallel. Ferrum Master. adjust/tighten the timings but keep the speed the same. The two sites I used are here. You’ll want to try to match the CAS latency, timings, and speed though! mismatched ram will only run at the slowest speed of both ram kits. 6. From my shitty notes tphy can only be controlled indirectly and sometimes changes randomly by training. as you've read the max installable ram should be 2GB ,so you have one free slot which means that you could buy even a 1GB memory stick,with In each channel, memory will work with slowest possible timings and clock speeds for that channel. I've found that most memory works most of the time. RAM speed is measured in MHz, or megahertz, allows a RAM manufacturer to specify So 3 years ago i got 1x8gb 2400mhz ram (company is goodram) with timings 17 17 17 and i want to upgrade to 16gb of ram i was looking for the exact same one but i cant find one the only ones are with different timings 15 15 15 and the (so always the slowest, same goes for speed, if they are mismatched they will run on the slowest Can I have mismatched ram? from the expert community at Experts Exchange. Is this a realistic option, or am I better off sticking with one 16GB kit or the other until I can get a matched set? I currently have 2 of the following RAM sticks on my PC: Value 8Gb 240P DDR3 1600 Pc3 12800, G. That 8GB cost me 51 This video should assist those that aren't fluent in bios settings or those that may have missed a setting that is causing their memory to crash. /ambvbflash -f -p0 card0mod. Reply reply Access the RAM slots. I went ahead and ordered a 16GB and 32GB module with clock speeds and RAM timings matching the soldered memory. If you can match timings it would be better. 35v 16-18-18-36 (HX432C16FB3/8) The 32gb is 3200mhz 1. My experience comes from Socket A era however since I haven't bought mismatched ram since then. Timings Given through a series of numbers, for example 4-4-4-8 I've mismatched RAM in every way imaginable. rom-> Get "BIOS authentication signature mismatched ERROR: 0FL01" Tried the same with sudo . It should be fine mismatching ram as the speed seems to match, plus bios tend to automatically set timings I've mismatched ram and have run such for some years with no issues. Mar 23, 2016 66 6 18,545. Joined Feb 22, 2009 Messages 770 (0. It is most likely due to a difference in ram timings, try to choose the timings manually and check if it is solved. You are taking about a 15% memory bandwidth hit using it. You are mismatching modules (most likely differently specced) with different operating characteristics. voltages and timings, it clocked down sure, but I blue screened at least once a week. Oct 5, 2007 21,598 599 59,140. Table of Contents. 29/1. Mismatched RAM timing can lead to stability issues or loss of performance. If one of your stick is faulty though, you should be able to have it replaced for free. You could run Memtest86 and see if it is possible that maybe one stick went bad but that still could be caused by mismatched RAM. Keep in mind that some of RAM The thing is, my current RAM has a CAS Latency of 8, with timing 8-8-8-24, and to get a similar kit with CAS Latency of 9, timing 9-9-9-24 would be significantly (almost twice) cheaper than getting the exact same RAM that I have now. 2V. Remove any existing RAM. Your stick is 2x1066 = 2133 Mhz , 15-15-15-36-50 if you buy a stick that's 16-15-15-36-50, motherboard will run both at 16-15-15-36-50 Adventures in underclocking mismatched RAM on an entry-level gaming laptop (Lenovo LOQ 15IRH8; RTX 3050 6GB Mobile, Intel i5-13420H) OC Report - RAM saying that sometimes lower clock speeds are actually lower latency on RAM because of tighter timings. Reply Erdnussflipshow 5800X3D / 32gb / RTX 3090 • Most modern Intel chipsets will run mismatched, and even 3 separate ram sticks, in dual channel. Home. Cyberpunk was always janky for me on my 2080s. I bought a Used PC off of Facebook marketplace a couple years ago, and it had 2x16 2666mhz ram, but the sticks were from 2 different brands and the timings on them were slightly different. Hello. You should've probably just loosened the timings to the 2GB specs and left it at that. That said you can give yourself the best chance of compatibility by manually setting the speed and timings to that of the slowest stick in the BIOS. I've always felt it takes more time to get stability with memory timings than OC a CPU. In this case the timings do not match so getting them to work at the rated speeds would require manual tweaking if it's possible at all. My rig currently has 16G (2x8) 3600 RAM. Less gambles. DDR3 doesn't exactly seem to be commonly sold anymore, so the only kit I found at the same voltage (Which is the really important part, as far as I understand it) has slightly different timings. I was running 2 mismatched ram sticks for a while on my 3700x, to find the most stable profile i ran it with xmp profile and by using the lowest common timing shown on typhoon burner 357 likes, 7 comments - notanishaha on December 17, 2024: "I’ve listened to this song unhealthy amount of times (mismatched, curls, curly hair, nose ring, mismatched season 3, curly hairstyles, netflix) #curls #explore #fyp #explorepage #reels #reelsinstagram #trendingreels #fypシ #mismatched #mismatchedseason2 #netflix #mismatchedseason3 #trending However, I've done some extensive research on the characteristics and (especially) the timings of the two RAM cards that you have. Mismatched ram is never guaranteed to work. Then set both sticks to this spec. Timings and speed should match. Lower latency means faster ram. RAM modules have specific speed ratings, such as DDR3 or DDR4, as well as timings that determine how quickly they can access data. I would get just 2 sticks if you want higher chance of the RAM working at higher my ddr4 corsair vengeance rgb pro 3000 MHz ram is rated at cas latency 15 and that's what the bios reads, but all programs within windows reads cas latency 16, programs like cpu-z, aida 64, hwinfo, and ryzen master. Four sticks is harder to run than 2 sticks. Your system will be slower with the 3rd stick of mismatched RAM. Different brand and capacity is suboptimal, I have been using mismatched RAM since DDR2 days. So getting your ram together in a package is going to give you a better chance at hitting advertised speeds. I just don't care to sit down and mess with memory timings. I haven't used an Intel system for gaming in a long while but I don't remember memory speed having as big an impact as it does on the Zen systems. On a laptop, they might be under a small access panel. I have a 2666mhz CL19 stick on channel 1 and a 2666mhz CL15 stick on channel 2. All else fails you can just remove the slower memory. 0V. Overclock like any normal type of RAM. Tech Support I have 2 sets of 2 x 8gb 3200MHz, but they are two different brands. The faster ram will run slower without any issues. 35V and CORSAIR Vengeance LPX 16GB (2 x 8GB) 288-Pin PC RAM DDR4 3600 (PC4 28800) Desktop Memory Model CMK16GX4M2D3600C18 DDR4 3600 Timing 18-22-22-42 So I've got a Thinkpad t14 gen 2, Intel version, which had 16gb total ram. You are forcing your current DIMM to run just at 333MHz. At worst you might have to manually set all your timings to stay stable. So 3000mhz ram can do 3 billion operations per second. So, ALL ram can run at any voltage (more or less), but depending on this voltage you might or might not be able to push it to certain frequencies, or lower than certain timings. Have a question regarding some RAM timings, am trying to narrow down my instability problem once again. skil 4000 speed kit of 2 x 16gb for $77: https: Mismatched Memory. If you want to run 4 sticks you should do your best to stick with same clock and timings. From some reading on the issue, it's suggested that I could theoretically get the mismatched set to coexist by manually tweaking the timings on the faster set to match the slower. Also, you said that the ram speed changed to 1866->1333mhz, which proves that there is an incompatibility in the ram modules. You won't know for sure if The thing is one of your ram might be the culprit or one ram slow is having a problem. Match RAM timings (or select the lowest timings per module to ensure stability. Mismatched RAM modules can cause compatibility issues and affect performance. Chances are decent that you could get both pairs on the timings of the 1600 sticks, or you could try overclocking the 1600 to 1866. Ram isn't inherently any speed. As for how much of a performance difference there is between 1600/2400 that would depend Hello all. Timings matter and real world performance varies so can't provide system performance hit. Manually set timings for the slower OLOy ram and unraid is happy. Most likely you can't use all of them at the same time. The system is Asus ROG Zephyrus M15 (GU502GU) , onboard What happens when you mix and match DRAM? It’s a common situation: you want to add or replace a DRAM module in your computer. rom-> same error 6. Upvote 0 Downvote. Latency is related to how quickly your ram access the info. I figured I would start with 8, and buy 8 more a little bit down the road. 22 seconds per turn in Civilization VI. Using mismatched RAM can result in system crashes, data corruption, and unpredictable behavior, particularly in high-demand scenarios such as gaming or video editing. x and the new memory (Samsung IC) and the new memory is 3. So for your example (a 4 GB stick and an 8 GB stick), the computer would fistfulloframen • I have worked with some ram that does not like some timings, it does not happen often. OP spent two weeks (1209600 seconds) optimizing RAM timings to gain 0. Memory Timings and Latency. 3/1. Very hard to find any data on google for 4x16GB DDR5 for ryzen(7700x here), I happen to have also 4x patriot viper 6200 Most chipsets will simply revert to single channel if capacity is mismatched. Latency - this is the reason I'm even posting this. For certain third tier, RTL and IOL settings, I see CHA has values that don't match with the rest, whether using the base clock or either one of the XMP profiles. Joined Jan 14, 2019 Messages 12,360 (5. Mismatched Ram Timing problem? Thread starter shohag2018; Start date Feb 21, 2010; Tags Phenom Toggle sidebar Toggle sidebar. Can you use 2 16GB and 8gb RAM together? Yes, you can mix different size ram together. SkyNetRising Titan. Mixing RAM brands can lead to compatibility issues that may result in slower overall performance. If I add more RAM to one channel than another, I get "hybrid dual channel". Mismatched RAM sticks. Your system will try to run them at same settings, which means it will use the highest clockspeed and lowest latency both types of sticks can run equally "lowest common denominator". That is why ram is sold in kits. 65v xmp With regard to memory timings and voltages, the motherboard didnt allow individual voltages for ram so i had to work out timings and voltages stable for all 4 sticks. I went with the GIGABYTE GA-Z77X-UD4H and loaded it with 8GB of Corsair Vengeance Memory. shohag2018 Distinguished. You would need to run your ram at the same settings--in this case, 1. Set your ram specs explicitly for speed cas and voltage/ You will need to increase the voltage past normal, and you may only be able to get all to work by lowering speed. the RAM frequency the RAM latency/timings If you run RAM with mismatched specs, it'll still run, but at the common lowest denominator (lowest frequency, higher latency, etc). The voltage is likely to be lower, and so you'll be underclocking both chips. 65v cl10 1866 at worst. As for the timing, you may manually tune one or the other to the higher or lower timings, so they match. last updated – posted 2005-Dec-17, 10:02 am AEST posted 2005-Dec-17, 10:02 am AEST User #92566 38654 posts. If installed in the same channel as you wrote, then the mismatched modules in the I have a friend who's trying to save 20 bucks by purchasing Trident Z RGB 16 gb at timings 19-20-20-40 when his current kit is 16-19-19-39. 8-2. But what about a matched pair of say, 8gb If you have 4 sticks installed with different speeds and timings, all your memory will run at the slowest of the installed sticks. This is the reason you shouldnt mix different ram sticks. It can be a cause of system boot failure due to memory incompatibility Reply reply You have mismatched ram. These were the sticks I ordered and tested: Crucial 16GB stick: Mismatched RAM certainly doesn't help at all. In your next build be sure to use two matching pieces of I received a kit of 16G (2x8) 3200 RAM for Christmas. Futureproofing: RAM timing is an essential consideration for future upgrades. But when it comes down to it, RAM performance isn't really a big deal outside a couple frames per second unless you are using an integrated graphics solution I have mismatched RAM that I thought I could make work. As far as I know, some CPUs can run different timings on different RAM sticks placed in different channels. If you see more issues than before (e. Completely different integrated circuits. x (micron) I've tried adjusting timings (even though same timings and voltage on all 4 sticks), You're using mismatched RAM, hynix and samsung ICs 90% sure you cannot reach 3200 with mismatched ram. 70/day) May 13, 2021 I bought exactly the same kit but it turns out the chips inside are different (bad luck!). On the other hand, poor or mismatched timing settings can lead to data corruption, slower data transfers, and decreased overall system efficiency. Even mixing different brands of memory ICs can sometimes lead to instability. SKILL, F3-1600C11S-8GNT, 8 Gb I decided to add more so I bought those: G. The main issue is Typically memory timings will be always match the slowest module, so if you have a CAS 9 module, all modules will run at CAS 9. edit: Good news on my end - running my memory @ 2133 11-11-11 1. Now, will mismatched ram work? RAM needs to be run at a common frequency and be of like technology. In that case, use matched modules. Now I figure since I am using stock timings this should be ok. Manufacturer Variance: Subtle performance issues, occasional errors: Diminished system reliability: Mismatched RAM can lead to far more problems than it’s worth. very weird, need help. for instance, I have a HP i7-7700k motherboard. Will install the ram fan shortly Most importantly it comes down to the type of memory your card is running. But it doesn't hurt to try. I have 2 ZBook G3s with 16Gb RAM currently. Adding mismatched sizes of RAM is complicated, and has a few undesirable effects depending on what configuration you put it in. Sort by date Sort by votes jimmysmitty Champion. P. As technology advances, faster RAM modules with tighter The motherboard will choose timings that are most conservative , supported by both sticks. While mixing memory isn't a good idea when the timings/voltage match it's usually safe enough for older/slower memory. And I guess this is kind of expected. And I have now a few extra sticks of memory that are compatible with some systems I am keeping going. Don't get your hopes up too high with your mismatched When you have an empty memory slot, or you install memory in mismatched capacities (1 x 8 GB + 1 x 16 GB for example), the memory runs in the lower performing single data rate (SDR) mode. The fact that ram auto-detects the manufacturer's It should work, and the ram will run at the lowest combination of clock speed and timings. There can be manufacturing differences, even between the same part numbers. Back in April I decided to build my first system. Skill TridentZ RGB 3200Mhz CAS16 for $140 that I'm considering. Corsair and others tend to just dump any ram dies into their "Series" so you'll get different ICs if you buy a pair of RAM sticks one month later, even if they're the same "LPX" model I have mismatched ram in my machine. If your 3200 Mt/s is this part What happens if you mix RAM size? Or completely mismatch RAM modules? Is it good or bad? Here are several RAM myths that need to die! You don't need XMP to set memory values when you mix sets, just set them to the highest voltage, and slowest timings of any of the sticks manually in the bios. skill Ripjaws V, 8Gb x 2 DDR4 3600 CL 16) And now i’ve added another two sticks of ram to the PC (T. System Name: Lenovo 17IMH05H: Running mismatched RAM? Last edited: Nov 8, 2017. Skill 8GB (1 x 8GB) If the only differences within your two sets of memory is the timings and cas latency then you can try it out and see if it works. Random Access Memory Timings are numbers such as 3-4-4-8, 5-5-5-15, 7-7-7-21, or 9-9-9-24, the lower the better. I thought this was 16gb soldered with an open sodimm slot, so I bought a 16gb stick (teamgroup elite ddr4 3200MHz PC4-25600 CL22) to boost it up to 32gb total. First, you should check the specifications and This was an improvement because being limited in memory and having to load resources from the hard drive is the worst thing that can happen, but you are still losing FPS because of mismatched ram. But i still switched one of the 8gb stick to the 32gb. For example, XMP 2 (2800M This is why mixing and matching ram is not recommended. Though single vs dual doesn't make a huge difference on todays hardware. Post back with those timings and we'll find out if we need to try and work through that problem. Physical composition and wiring of modules can affect the compatibility. One times 6-6-6-18 Regardless, mismatched RAM should be capable of dual channel - just at the lowest common denominator in terms of speed/timings, timings and voltage, and validated for a given motherboard, then all you are left with is the possibility, not the guarantee, that they will work either together or on any given motherboard. Mismatched RAM (Brands) for Dual-Channel. Feedback on Mismatched RAM . Thus, I'm going to have to set back from helping you with that. This is because different RAM brands may have varying speeds and timings, which can create bottlenecks in data processing. Timings: RAM timings refer to a set of numbers that indicate the latency and timing parameters of the memory module. If it was a huge problem then you wouldn't be able to tweak the memory speeds on each channel. the safest option is a matching set, as they tested to work with each other. update the BIOS to get the most up to date RAM timings for your motherboard, Sometimes mismatched RAM sticks just don't work well together. Third-Eye Splendid. Use one stick of ram so you can get into the bios. Try to use a single stick of your new ram for few hours and see if there are any problem with any of those In this short video you will learn how to use two different RAM modules together. You should use the ones recommended for i'm suspecting it is due to mismatched timings, is there any way to identify this and possibly fix this? The installed RAM is a Kingston HyperX DDR4 16GB stick. 5ns. 33 for now, low 46ns now. Since pre-upgrade is single channel. Thread starter AusWolf; Start date May 10, 2021; AusWolf. Timing 16-18-18-36 CAS Latency 16 Voltage 1. For the RAM I had two F4-3600C8-8GTZNC Its about timing differences, mainly the sub timings. You might be able to get higher clock speeds, tighter timings, or lower voltages depending on how good the sticks are. Since Ryzen gets a benefit from the speed of the ram in the form of faster infinity fabric, it would be interesting to isolate just the timings to see how much those affect fps. In taking the DDR4-3200 as an example, mismatched memory could halve that speed to 1800MHz! The thing is, when you mix memory modules with different frequencies and timings, you get the worst of both worlds: all modules have to run on the clock and timings appropriate for the slowest one. aihw zqwry kuzmcwds othqopx jdvd yimsuo mngq unog samyw bypww