The World of RAM: Unlocking its Potential

It's no secret that RAM is an essential component in any computer system, and getting the most out of it can make all the difference in performance. However, unlocking its full potential can be a challenging task, especially when it comes to implementing XMP profiles. In this article, we'll delve into the world of RAM and explore the factors that affect its performance, as well as some tips and tricks for getting the most out of your system.

The Importance of XMP

XMP (eXtreme Memory Profile) is a protocol that allows users to push their RAM to higher speeds than what's normally available. It's like adding an extra layer of fuel to your computer's engine, allowing it to run faster and more efficiently. However, implementing XMP profiles can be a daunting task, especially for beginners.

Reenabling XMP without issues requires careful consideration of the system's specifications. As we saw in our previous example, reenabling XMP1 without the 6700 or 8,000 megabytes transfer results in a stable performance boost. However, as we discussed earlier, getting too much speed can lead to diminishing returns, especially when dealing with tasks that involve swapping memory frequently.

The Impact of CPU and Motherboard Compatibility

One of the biggest hurdles to unlocking XMP profiles is ensuring compatibility between the CPU and motherboard. As we mentioned earlier, some CPUs are more finicky than others when it comes to RAM speeds. For example, Ryzen CPUs prior to the 3000 series were notorious for their sensitivity to R speeds, making it difficult to achieve stable performance with fast RAM.

In contrast, modern CPUs like Intel's 10th and 11th gen processors have a more stable memory controller, allowing users to push higher speeds without issues. However, this doesn't mean that older systems can't benefit from XMP profiles; it just requires careful testing and tweaking to find the sweet spot.

Motherboard Manufacturers' QVL Lists

Another crucial factor in unlocking XMP profiles is the motherboard manufacturer's Quality Verification List (QVL). This list provides a snapshot of RAM kits that have been thoroughly tested and verified to work seamlessly with specific motherboards. It's essential to check the QVL before purchasing any RAM kit, as not all kits will be compatible.

Moreover, some manufacturers may have specific requirements for RAM kits, such as a minimum ratio between the CPU's memory controller and the RAM. This is because the infinity fabric, which governs data transfer between the CPU and RAM, needs to be able to handle the increased bandwidth generated by fast RAM.

The Challenges of DDR5

As we're still in the early days of DDR5, there are several challenges that need to be addressed before users can truly unlock its potential. For starters, the quantity of RAM per dim (dual in-line memory module) has increased significantly, leading to more complex compatibility issues between different kits.

Furthermore, the manufacturing process for DDR5 is still evolving, and as a result, there's ongoing variance between different RAM sticks within the same kit. This means that users need to be cautious when purchasing RAM kits, ensuring that they're compatible with their system and motherboard.

The Evolution of BIOS and Motherboard Profiles

Newer bios often include new profiles that support newer RAM kits, which may not have been supported by previous iterations. For example, if a user has an older motherboard versioning or bios that supported a specific RAM kit, a newer profile might be included in the latest bios to make that kit compatible.

This means that users need to stay up-to-date with their motherboard's bios and QVL lists to ensure they're getting the most out of their RAM. By doing so, they can unlock faster speeds, higher megatransfers, and improved performance overall.

A Word of Caution

While unlocking XMP profiles can be a rewarding experience, it's essential to remember that it's not guaranteed to work on every system. Users should proceed with caution and test RAM kits gradually, dropping down speeds until they find the optimal balance between performance and stability.

In our example earlier, we demonstrated how to reenable XMP1 without issues by carefully testing different speed settings. This approach can be applied to any system, allowing users to unlock its full potential and reap the benefits of faster RAM speeds.

"WEBVTTKind: captionsLanguage: enso recently I did a short talking about uh you might be leaving performance on the table by not enabling XMP docp or Expo uh for your system but one thing you might notice is uh it's not going to work on all systems it's not always guaranteed to work so today we're going to talk about why your XMP or extreme profile memory whatever it's called for whichever platform you're running isn't working some steps you can take to try and make it work and how to revert and uh get your system up and running again if it's stuck in a boot loop crash cycle whatever EK water blocks Quantum torque fittings for PC liquid cooling include static extenders rotary adapters offsets double rotary fittings and micro series for all small form factor systems with a wide variety of fittings your Loop building experience becomes much easier quicker and more streamlined and all torque fittings come in four major finish options that will blend in with any setup the standard nickel plated versions the special matte black satin titanium and fittings plated with real gold with replaceable locking Rings available in multiple colors and aesthetic color rings only available from Ek the customization options are almost endless to see the full lineup of EK water block torque fittings follow the link in the description below so just a short recap though the memory speeds that are printed on the package are overclocks the base speed for ddr5 is 4,800 MHz the base speed for ddr4 I think is 2133 and it might end up being 2333 or 2400 as it matured a little bit later but obviously this 6,400 MHz kit of RAM is uh much higher than the base clock of 4800 MHz so if I was to just take this Ram put it in my system and turn on the system it would run at the absolute base settings and base timings for ddr5 which is the uh 4800 MHz but ddr4 is where you're going to probably notice more of an issue about not being able to run uh XMP or docp let's do a quick sidebar here docp is what the quote unquote AMD sort of qualified timings and and speeds were for like ryzen systems for like ryzen 1000 up through 5,000 and then with am5 and 7,000 series ryen they changed the name to AMD Expo so XMP stands for extreme memory profile and that was specifically for like Intel based CPUs and it's been called XMP or extreme memory profile now for a long long time like way more than a decade probably closer to two decades now at this point but anyway I digress docp was just sort of what the motherboard manufacturer s would have made to qualify Ram that was designed to work with Intel to work on their motherboards with AMD CPUs now the thing about the docp XMP or Expo now which is a uh like an AMD sort of vetted qualified Ram speed if you will um is it's not guaranteed to work on your system you see ever since the memory controller the MC or the memory controller was moved off of the North Bridge or off of the chipset and onto the CPU it became much much harder for CPUs to overclock as well as run memory overclocks so if we're talking about enabling our XMP and you want to play around with memory timings and speeds cuz it's not just changing the frequency like on here it says 6,400 MHz are the timings listed on here no they're not listed on this package what you're going to notice is it's going to increase the memory clock speeds as well as tighten up all of the timings so it's not guaranteed to work on all systems because the memory controller depending on your CPUs aset quality and its silicon Lottery scale if you will uh is going to vary between CPU to CPU so your CPU only guarantees to be able to run the Ram at its base clock settings and it's only guaranteed to do that at stock CPU settings because that's the condition at which they can guarantee that every single CPU shipped across the world is going to be able to operate just standard basic outof thee boox settings so when you start enabling AI overclocking or motherboard enhanced features and memory overclocking which which is again these profiles we're talking about then you'll that you'll start to notice some uh instabilities and those instabilities can really sort of manifest in a bunch of different ways everything is as severe as your system straight up won't post or you're noticing boot Cycles or boot Loops where your system Powers off powers on Powers off powers on it could be as subtle as random blue screens here and there in your system playing certain games or just what seems to be completely random crashes blue screens crash to desktops um or even shuttering and stuff taking place in your system there's there's a possibility where the stability can be just so on the razor's Edge that only very specific type of situations could potentially give the blue screen and that blue screen would just be the fact that the memory made some sort of a mathematical error or the CPU made some sort of mathematical error and then it was not harsh enough to cause a full system hang or freeze but enough to trigger a blue screen so these are some of the things that you might notice when you start playing around with your RAM overclocks so enabling your RAM overclock though is pretty simple the first thing you have or I say Ram overclock obviously profiles first thing you have to do is restart your system and get into your systems bios so in my Falcon Northwest system here this is the Talon I have a 14900 K and 32 GB of hyperx Fury uh RGB Ram rated at 6,000 MHz uh so if I wanted to enable that XMP profile for the Intel system then it would just show up right here as XMP what you might notice too is it may even show up called XMP in and AMD systems but the bottom line is if you are on auto then it's going to be default running at the lowest speeds now you'll notice a couple of different profiles here xmp1 xmp2 and XMP tweaked some of those are going to be motherboard uh settings that are on there by default by the motherboard manufacturer so like this is an Asus board so I know Asus does a lot of vetting on RAM that is stable uh at certain CPU speeds and stuff and the way they do that is and I know like MSI and gigabyte and and as rock and all them do the same thing they have a lab with hundreds of systems and then they basically just go through and do what's called a qvl and I think qvl stands for Quality verification list but what they do is they take as much ram off of you know from the manufacturers as they can different speeds different timings uh and then they kind of determine what is stable and what isn't so they might come up with alternative profiles here that are that you can try if xmp1 or profile one isn't stable so you're not necessarily finding different XMP profiles that exist on the ram itself but different profiles that exist based on what the motherboard says would be an alternative to try if your CPU won't post or run stable at its uh printed speeds so let's go ahead and enable XMP right here it's already enabled but you'll notice the timing show right here which is 32 38 38 and 80 what I'm going to do right now is I'm going to reset my optimized defaults and this system does actually have a very stable overclock as well running 6,000 MHz memory um but I want to show you is how the actual memory speeds so you have your Dam frequency right here which shows all these different you might be wondering why some are grayed out I've had this question before this is because they have to run in a certain ratio um these ran these speeds that are grayed out are just out of ratio with the uh the actual memory controller so they just show every possible iteration of the speed but only the white ones are valid based on uh the memory controller and the ratio needed but as you can see right here it would let you go to some really dumb numbers if you wanted like there 13,333 I don't again it's just ratio it's just math right so it's just like how far can it go I don't know changing the frequency is only half of that equation so like I said we'll go back up to leave it at Auto like where it was let's take a look though at the timings you'll notice now at stock uh we still have the 32 38 38 38 and 80 that's because that's what we're currently booted in but if I go ahead right now and put all of these timings back to Auto I want to see how much our Ram timing's changed and believe it or not Ram timing more often than not has a um bigger impact on the overall performance of The Ram than just the overall Ram megahertz so you notice the timing's loosened up a little bit ironically cha and chb down here on the RAS uh time actually tightened it was so sometimes when you go really fast with the ram you have to loosen the timings a little bit um and as you can see here they loosened up to 80 from 76 but they tightened up you know up here on the cast latency from 40 to 38 etc etc but let's go ahead and do a calculation right here let's see right now at 400 MHz at uh CL 40 let's see what our actual effective megat transfers are of the RAM and I want this way we can show you calculation wise how sometimes if you have to loosen the timings too much uh you lose performance so 4800 at cl40 is getting us 16.66% shows you how fast Ram is so we're measuring in Nan seconds now um but anyway so 6,400 MHz I thought this was 6,000 6,400 MHz at cl32 is 10 NCS versus 16. 66666 at sock so you can see now in terms of overall performance we are only a little bit faster or a little bit slower than twice as fast in terms of latency so this is why timing is important so 6400 at CL 32 I'm just going to go ahead and let this post with those timings I'm then going to artificially make it not boot so you guys can see uh what to do to get it back can't decide between performance or noise optimization for your next PC case then be quiet has you covered with their new dark Bass Pro 901 the interchangeable top and front cover allow you to choose either maximum air flow or virtually inaudible operation fan brackets with integrated hubs and Pogo connectors make Cable Management easier than it's ever been while a touch sensitive front I/O panel provides state-of-the-art operation to see the full list of specs of the be quiet dark based Pro 901 see our full breakdown video at the link in the description below now one thing I failed to mention that you should do be prior to doing this like I said is make sure that any of your overclocks for your CPU are at stock you never ever ever want to change more than one variable when you're overclocking whether it be Ram or CPU that way you can keep track of what change caused what result so if you were to enable XMP and then go in and do a big old overclock on your CPU and you won't post how do you know if it's CPU how do you know if it's memory you don't I just realized these are 48 gig sticks in here holy cow the Falcon Northwest really hooked up this machine I just assume they were 32 gigs cuz 16 gigs times two kits are like really common uh anyway the hyper Fury X is available or the fury Renegade is available all the way up to 8,000 megga transfers so that's kind of crazy anyway with that said let's see if this kit can go 8,000 megga transfers might as well just make it no go with something we know is not going to work because one of the things I'm not going to do is touch voltage okay there we go this should not post if it does that's crazy if the motherboard does its job it should recognize that it's not posting because of memory problems revert to safe mode and get you back into the bios so it's doing several post attempts here which is indicative of when well we got video this is usually what you'll notice if Ram is not working so it just did a restart again right there code 12 code 28 it'll hang on 31 for a minute then go to 34 then SC probably 0 and then rest say it's 4 c0d this is all memory stuff right here um if it were to post there's the 31 it's going to hang this is now its third restart so I'm hoping the board will recognize that we can't get past the memory stage and then uh it should hopefully revert itself into a safe mode fortunately this motherboard has a button on the back that's a clear seos button yeah so there another full-on restart I keep hoping it would come back onto safe mode but clearly it doesn't want to so this is perfect we're just going to flip the power supply switch okay power down and then so the clear sumos button on this guy is just a little button that sticks out I'm going to you don't technically have to turn off the power supply clearing the SE when you push the clear camos button in the old days and old power supplies you'd have to take the camos battery out otherwise the seos clear wouldn't work cuz technically what it's doing is it's kind of like draining all of the Caps to get all of the volatile memory in it to sort of reset that way it goes back into a first boot up startup type of a state so on older boards you might even have a jumper that you have to jumper with a piece of metal or a little uh jumper plastic deal itself to uh with two pins on your boards you had to look at your manual to figure out where that jumper is now when you push the clear CMOS button it does all that for you so you technically don't have to turn off the power supply but I do it anyway cuz it doesn't hurt now it's going to be just like the very first boot you ever did when you built your system assuming you built it or uh it' be the very same boot up as like when your si built it the very first time they built it so now what we should get is if I just let it it go we should end up with like an American megatrends type of a bios flash uh or splash screen here that's going to basically say um reset detected push F1 to enter Bios or like another button to continue it'll probably force me into BIOS and um that's all assuming this reset worked should default the BIOS yep see there it is there's your me meat Trends right there the system has posted in safe mode I made it go to safe mode it didn't do it on its own pH anyway F1 back into the bios so there we go that's pretty much it we're just going to reenable xmp1 without the 6700 or or 8,000 megga transfers I could probably get a little more out of this but there's no point honestly there becomes a real diminishing returns on how fast the memory is going if you're not doing tasks that are swapping with memory real like real frequently so anyway there you go um I got I said the only thing that may differ for your system and what we just sort of showed you here is the fact that one you might have uh a CPU that won't run anything at all above St stock we've had a couple of those come through here before we've had some CPUs that are just real Duds when it comes to the I/O controller on the CPU um ryzen prior to like 3,000 Series so like 1,000 series ryzen and 2000 series ryzen which is first and second gen of when ryzen first came out those were the most sensitive when it came to R speeds and most of the time you would not be able to run anywhere near the posted XMP dop profile and that was because of the way that the infinity fabric for the memory and IO controller had not matured fast enough to be able to really take advantage of fast RAM and the ram had to stay within a very specific ratio with the fabric itself so that's you're going to notice on the older platform for ryzen it was really really picky and finicky but the faster the ram the better for AMD specifically because of the infinity fabric so the very thing that needed the fast Ram was also what was limiting how fast it could go uh on more modern CPUs like 10th gen and up Intel like 10th gen Intel I was definitely not able to run like the crucial ddr4 um 5,000 MHz ddr4 that I had that's very fast for for ddr4 but Intel uh 11th gen was able to run it just fine out of the box enable XMP and it was perfectly fine and that was because of the increased uh stability of the Next Generation CPUs memory controller the other thing too is you're going to find that motherboard manufacturers do keep a qvl list of what Ram kits are designed to work and known to work with their motherboards and uh CPU list so always cross cross reference the QV with the motherboard manufacturer um with not just the memory company and the amount of memory in the speed but the actual like kit name like the serial number and all that stuff like the part number is what will be um qvl verified because you can't in modern CPUs you really can't take two matching kits that are like exactly the same part number and everything and throw them together and say now I've got a quad dim setup because what you'll find is that there's variance between the dims themselves and so Corsair for instance would have a four Stick kit that all four of those Rams have RAM sticks have been kind of verified to work together and then you still have to verify that with the qvl list for the motherboard manufacturer so Ram has gotten a bit complicated over the last couple gens simply because of the fact that the quantity of the R per dim now and ddr5 still ongoing maturity uh cuz it's super immature right now it just just tells distasteful jokes anyway moving on it's still taking time for ddr5 it's only been out for 2 years now to continue to improve and what you'll notice too is that new bios that come up from motherboards will often include new profiles to make newer Ram kits that have come out after the previous iterations of the motherboard versioning or bios uh had supported a kit that may not have been supported initially is maybe supported now with one of those tweaked profiles all right I hope this has answer some question regarding Ram I get this question a lot about why their system just won't run XMP or or Expo unfortunately it's not guaranteed it's one of the why one of the reasons why my buying advice is never to go with like the fastest Ram ever for your system because it's a real hit or miss on whether or not you'll be able to do it one thing I would have done if 6400 would not post on this system if it were if if that was the Max Speed 6,400 I would leave XMP on all those timings and then I would drop it to like 6,200 and if that wasn't stable I would drop it down to the next white number and then find where the maximum Mega transfers were stable and then run that so that's you can always get usually something above base but it's not guaranteed all right guys thanks for watching and we'll see you in the next oneso recently I did a short talking about uh you might be leaving performance on the table by not enabling XMP docp or Expo uh for your system but one thing you might notice is uh it's not going to work on all systems it's not always guaranteed to work so today we're going to talk about why your XMP or extreme profile memory whatever it's called for whichever platform you're running isn't working some steps you can take to try and make it work and how to revert and uh get your system up and running again if it's stuck in a boot loop crash cycle whatever EK water blocks Quantum torque fittings for PC liquid cooling include static extenders rotary adapters offsets double rotary fittings and micro series for all small form factor systems with a wide variety of fittings your Loop building experience becomes much easier quicker and more streamlined and all torque fittings come in four major finish options that will blend in with any setup the standard nickel plated versions the special matte black satin titanium and fittings plated with real gold with replaceable locking Rings available in multiple colors and aesthetic color rings only available from Ek the customization options are almost endless to see the full lineup of EK water block torque fittings follow the link in the description below so just a short recap though the memory speeds that are printed on the package are overclocks the base speed for ddr5 is 4,800 MHz the base speed for ddr4 I think is 2133 and it might end up being 2333 or 2400 as it matured a little bit later but obviously this 6,400 MHz kit of RAM is uh much higher than the base clock of 4800 MHz so if I was to just take this Ram put it in my system and turn on the system it would run at the absolute base settings and base timings for ddr5 which is the uh 4800 MHz but ddr4 is where you're going to probably notice more of an issue about not being able to run uh XMP or docp let's do a quick sidebar here docp is what the quote unquote AMD sort of qualified timings and and speeds were for like ryzen systems for like ryzen 1000 up through 5,000 and then with am5 and 7,000 series ryen they changed the name to AMD Expo so XMP stands for extreme memory profile and that was specifically for like Intel based CPUs and it's been called XMP or extreme memory profile now for a long long time like way more than a decade probably closer to two decades now at this point but anyway I digress docp was just sort of what the motherboard manufacturer s would have made to qualify Ram that was designed to work with Intel to work on their motherboards with AMD CPUs now the thing about the docp XMP or Expo now which is a uh like an AMD sort of vetted qualified Ram speed if you will um is it's not guaranteed to work on your system you see ever since the memory controller the MC or the memory controller was moved off of the North Bridge or off of the chipset and onto the CPU it became much much harder for CPUs to overclock as well as run memory overclocks so if we're talking about enabling our XMP and you want to play around with memory timings and speeds cuz it's not just changing the frequency like on here it says 6,400 MHz are the timings listed on here no they're not listed on this package what you're going to notice is it's going to increase the memory clock speeds as well as tighten up all of the timings so it's not guaranteed to work on all systems because the memory controller depending on your CPUs aset quality and its silicon Lottery scale if you will uh is going to vary between CPU to CPU so your CPU only guarantees to be able to run the Ram at its base clock settings and it's only guaranteed to do that at stock CPU settings because that's the condition at which they can guarantee that every single CPU shipped across the world is going to be able to operate just standard basic outof thee boox settings so when you start enabling AI overclocking or motherboard enhanced features and memory overclocking which which is again these profiles we're talking about then you'll that you'll start to notice some uh instabilities and those instabilities can really sort of manifest in a bunch of different ways everything is as severe as your system straight up won't post or you're noticing boot Cycles or boot Loops where your system Powers off powers on Powers off powers on it could be as subtle as random blue screens here and there in your system playing certain games or just what seems to be completely random crashes blue screens crash to desktops um or even shuttering and stuff taking place in your system there's there's a possibility where the stability can be just so on the razor's Edge that only very specific type of situations could potentially give the blue screen and that blue screen would just be the fact that the memory made some sort of a mathematical error or the CPU made some sort of mathematical error and then it was not harsh enough to cause a full system hang or freeze but enough to trigger a blue screen so these are some of the things that you might notice when you start playing around with your RAM overclocks so enabling your RAM overclock though is pretty simple the first thing you have or I say Ram overclock obviously profiles first thing you have to do is restart your system and get into your systems bios so in my Falcon Northwest system here this is the Talon I have a 14900 K and 32 GB of hyperx Fury uh RGB Ram rated at 6,000 MHz uh so if I wanted to enable that XMP profile for the Intel system then it would just show up right here as XMP what you might notice too is it may even show up called XMP in and AMD systems but the bottom line is if you are on auto then it's going to be default running at the lowest speeds now you'll notice a couple of different profiles here xmp1 xmp2 and XMP tweaked some of those are going to be motherboard uh settings that are on there by default by the motherboard manufacturer so like this is an Asus board so I know Asus does a lot of vetting on RAM that is stable uh at certain CPU speeds and stuff and the way they do that is and I know like MSI and gigabyte and and as rock and all them do the same thing they have a lab with hundreds of systems and then they basically just go through and do what's called a qvl and I think qvl stands for Quality verification list but what they do is they take as much ram off of you know from the manufacturers as they can different speeds different timings uh and then they kind of determine what is stable and what isn't so they might come up with alternative profiles here that are that you can try if xmp1 or profile one isn't stable so you're not necessarily finding different XMP profiles that exist on the ram itself but different profiles that exist based on what the motherboard says would be an alternative to try if your CPU won't post or run stable at its uh printed speeds so let's go ahead and enable XMP right here it's already enabled but you'll notice the timing show right here which is 32 38 38 and 80 what I'm going to do right now is I'm going to reset my optimized defaults and this system does actually have a very stable overclock as well running 6,000 MHz memory um but I want to show you is how the actual memory speeds so you have your Dam frequency right here which shows all these different you might be wondering why some are grayed out I've had this question before this is because they have to run in a certain ratio um these ran these speeds that are grayed out are just out of ratio with the uh the actual memory controller so they just show every possible iteration of the speed but only the white ones are valid based on uh the memory controller and the ratio needed but as you can see right here it would let you go to some really dumb numbers if you wanted like there 13,333 I don't again it's just ratio it's just math right so it's just like how far can it go I don't know changing the frequency is only half of that equation so like I said we'll go back up to leave it at Auto like where it was let's take a look though at the timings you'll notice now at stock uh we still have the 32 38 38 38 and 80 that's because that's what we're currently booted in but if I go ahead right now and put all of these timings back to Auto I want to see how much our Ram timing's changed and believe it or not Ram timing more often than not has a um bigger impact on the overall performance of The Ram than just the overall Ram megahertz so you notice the timing's loosened up a little bit ironically cha and chb down here on the RAS uh time actually tightened it was so sometimes when you go really fast with the ram you have to loosen the timings a little bit um and as you can see here they loosened up to 80 from 76 but they tightened up you know up here on the cast latency from 40 to 38 etc etc but let's go ahead and do a calculation right here let's see right now at 400 MHz at uh CL 40 let's see what our actual effective megat transfers are of the RAM and I want this way we can show you calculation wise how sometimes if you have to loosen the timings too much uh you lose performance so 4800 at cl40 is getting us 16.66% shows you how fast Ram is so we're measuring in Nan seconds now um but anyway so 6,400 MHz I thought this was 6,000 6,400 MHz at cl32 is 10 NCS versus 16. 66666 at sock so you can see now in terms of overall performance we are only a little bit faster or a little bit slower than twice as fast in terms of latency so this is why timing is important so 6400 at CL 32 I'm just going to go ahead and let this post with those timings I'm then going to artificially make it not boot so you guys can see uh what to do to get it back can't decide between performance or noise optimization for your next PC case then be quiet has you covered with their new dark Bass Pro 901 the interchangeable top and front cover allow you to choose either maximum air flow or virtually inaudible operation fan brackets with integrated hubs and Pogo connectors make Cable Management easier than it's ever been while a touch sensitive front I/O panel provides state-of-the-art operation to see the full list of specs of the be quiet dark based Pro 901 see our full breakdown video at the link in the description below now one thing I failed to mention that you should do be prior to doing this like I said is make sure that any of your overclocks for your CPU are at stock you never ever ever want to change more than one variable when you're overclocking whether it be Ram or CPU that way you can keep track of what change caused what result so if you were to enable XMP and then go in and do a big old overclock on your CPU and you won't post how do you know if it's CPU how do you know if it's memory you don't I just realized these are 48 gig sticks in here holy cow the Falcon Northwest really hooked up this machine I just assume they were 32 gigs cuz 16 gigs times two kits are like really common uh anyway the hyper Fury X is available or the fury Renegade is available all the way up to 8,000 megga transfers so that's kind of crazy anyway with that said let's see if this kit can go 8,000 megga transfers might as well just make it no go with something we know is not going to work because one of the things I'm not going to do is touch voltage okay there we go this should not post if it does that's crazy if the motherboard does its job it should recognize that it's not posting because of memory problems revert to safe mode and get you back into the bios so it's doing several post attempts here which is indicative of when well we got video this is usually what you'll notice if Ram is not working so it just did a restart again right there code 12 code 28 it'll hang on 31 for a minute then go to 34 then SC probably 0 and then rest say it's 4 c0d this is all memory stuff right here um if it were to post there's the 31 it's going to hang this is now its third restart so I'm hoping the board will recognize that we can't get past the memory stage and then uh it should hopefully revert itself into a safe mode fortunately this motherboard has a button on the back that's a clear seos button yeah so there another full-on restart I keep hoping it would come back onto safe mode but clearly it doesn't want to so this is perfect we're just going to flip the power supply switch okay power down and then so the clear sumos button on this guy is just a little button that sticks out I'm going to you don't technically have to turn off the power supply clearing the SE when you push the clear camos button in the old days and old power supplies you'd have to take the camos battery out otherwise the seos clear wouldn't work cuz technically what it's doing is it's kind of like draining all of the Caps to get all of the volatile memory in it to sort of reset that way it goes back into a first boot up startup type of a state so on older boards you might even have a jumper that you have to jumper with a piece of metal or a little uh jumper plastic deal itself to uh with two pins on your boards you had to look at your manual to figure out where that jumper is now when you push the clear CMOS button it does all that for you so you technically don't have to turn off the power supply but I do it anyway cuz it doesn't hurt now it's going to be just like the very first boot you ever did when you built your system assuming you built it or uh it' be the very same boot up as like when your si built it the very first time they built it so now what we should get is if I just let it it go we should end up with like an American megatrends type of a bios flash uh or splash screen here that's going to basically say um reset detected push F1 to enter Bios or like another button to continue it'll probably force me into BIOS and um that's all assuming this reset worked should default the BIOS yep see there it is there's your me meat Trends right there the system has posted in safe mode I made it go to safe mode it didn't do it on its own pH anyway F1 back into the bios so there we go that's pretty much it we're just going to reenable xmp1 without the 6700 or or 8,000 megga transfers I could probably get a little more out of this but there's no point honestly there becomes a real diminishing returns on how fast the memory is going if you're not doing tasks that are swapping with memory real like real frequently so anyway there you go um I got I said the only thing that may differ for your system and what we just sort of showed you here is the fact that one you might have uh a CPU that won't run anything at all above St stock we've had a couple of those come through here before we've had some CPUs that are just real Duds when it comes to the I/O controller on the CPU um ryzen prior to like 3,000 Series so like 1,000 series ryzen and 2000 series ryzen which is first and second gen of when ryzen first came out those were the most sensitive when it came to R speeds and most of the time you would not be able to run anywhere near the posted XMP dop profile and that was because of the way that the infinity fabric for the memory and IO controller had not matured fast enough to be able to really take advantage of fast RAM and the ram had to stay within a very specific ratio with the fabric itself so that's you're going to notice on the older platform for ryzen it was really really picky and finicky but the faster the ram the better for AMD specifically because of the infinity fabric so the very thing that needed the fast Ram was also what was limiting how fast it could go uh on more modern CPUs like 10th gen and up Intel like 10th gen Intel I was definitely not able to run like the crucial ddr4 um 5,000 MHz ddr4 that I had that's very fast for for ddr4 but Intel uh 11th gen was able to run it just fine out of the box enable XMP and it was perfectly fine and that was because of the increased uh stability of the Next Generation CPUs memory controller the other thing too is you're going to find that motherboard manufacturers do keep a qvl list of what Ram kits are designed to work and known to work with their motherboards and uh CPU list so always cross cross reference the QV with the motherboard manufacturer um with not just the memory company and the amount of memory in the speed but the actual like kit name like the serial number and all that stuff like the part number is what will be um qvl verified because you can't in modern CPUs you really can't take two matching kits that are like exactly the same part number and everything and throw them together and say now I've got a quad dim setup because what you'll find is that there's variance between the dims themselves and so Corsair for instance would have a four Stick kit that all four of those Rams have RAM sticks have been kind of verified to work together and then you still have to verify that with the qvl list for the motherboard manufacturer so Ram has gotten a bit complicated over the last couple gens simply because of the fact that the quantity of the R per dim now and ddr5 still ongoing maturity uh cuz it's super immature right now it just just tells distasteful jokes anyway moving on it's still taking time for ddr5 it's only been out for 2 years now to continue to improve and what you'll notice too is that new bios that come up from motherboards will often include new profiles to make newer Ram kits that have come out after the previous iterations of the motherboard versioning or bios uh had supported a kit that may not have been supported initially is maybe supported now with one of those tweaked profiles all right I hope this has answer some question regarding Ram I get this question a lot about why their system just won't run XMP or or Expo unfortunately it's not guaranteed it's one of the why one of the reasons why my buying advice is never to go with like the fastest Ram ever for your system because it's a real hit or miss on whether or not you'll be able to do it one thing I would have done if 6400 would not post on this system if it were if if that was the Max Speed 6,400 I would leave XMP on all those timings and then I would drop it to like 6,200 and if that wasn't stable I would drop it down to the next white number and then find where the maximum Mega transfers were stable and then run that so that's you can always get usually something above base but it's not guaranteed all right guys thanks for watching and we'll see you in the next one\n"