Gadgetory

hey everyone we are at the g.skill booth at Computex 2017 doing something a little different that's pretty cool so we're doing some extreme overclocking with one mr. drew bauer AKA roman a story working on what I guess CPU overclocking yeah exactly so today we will do a CT OC on KP Lake so see 270 board we have Asus apex which is made mainly for OC and especially x OC so today you will have your hands on heavy lake so you can finally do some proper overclocking so you can do the pouring with liquid nitrogen I will teach you what kind of settings you need so all the voltages you have to set how to set them at at which moment and yeah we will try to hit 70 yards with you should work out yeah here we go cool so we're gonna give that a shot before getting to that this coverage is brought to you by EVGA and a new gtx 980ti sc2 video card you can learn more on the link in the description below or check our full review okay so what's the house keeping out of the way what's the first step so the first step would be obviously to prepare the setup but we did all that for you already because otherwise it would just take too much time so usually you set up the mainboard and you do all the installations so you can do like liquid liquid tape insulation or Vaseline that should help then you mount the container then you start cooling down through light -100 then you go to the bios to the first settings so we have already in this board so there's an L M 2 profile which we made last year in November already before table 8 so from the asus event we saved all the profiles and made it available available for everyone so basically everyone you can just go to the bios lo - LM - profile pour down and that's it it's really simple and then once or your windows there are few more voltages you have to set like PLL termination voltage which the voltage to make the CPU a little bit hotter so you need that to make a full pot we call it full pot so cool down as low as possible for that we need a higher PLL termination and then you also crank up the cord through like 1.8 51.9 something in this direction include core clock cache clocks and that's pretty much it okay you say pretty much if I we'll see we'll see how complicated is getting into it so what are we going to look at next you're pouring liquid nitrogen already into the pot yeah because I want to keep it a little bit colder so currently we're at like minus 116 the thing is for all this whatever we do we have to delete CPUs and replace thermal paste not with liquid metal but with a conventional a good conventional paste we cannot use liquid metal because liquid metal is an alloy and alloys have like a temperature dependent normal conductivity right so thermal conductivity and liquid metal on deep temperature is really bad so we cannot use that so that's why we have to use a normal conventional paste so how does the conventional phase respond to the extreme temperatures usually very well they don't conductivity stays the same so that's very good but the issue we have is that you have the silicon and you have the copper of die HS and they have different thermal expansion rates right right so if you cool down they're expanding or shrinking and that can make your channel test track recall it correctly so they basically basically the thermal paste it's losing the tension to the surface and if this happened it's not good so even at like minus 160 pub temperature you would have plus 100 degree on the CPU for so that's one issue we were facing yeah right where is that and and one other thing before we really get going I see you've got a thermocouple here attached somewhere where is that mounted it's mounted in the bottom of the sea to container so we measure the CPU container temperature some guys also measure the temperature of the IIHS of the CPU but usually it's not needed because cable a can run full pot so we just pour as low as possible and then you cannot do anything anyway so it doesn't matter if your temperature is showing minus 180 or minus 200 it's as low as you can go cool okay well as let's get started all right the first thing would be to max out the temperature and for that as I said before you have to increase PLL termination so you have to use aces to movie core that's what we use for adjusting all the voltages so first step is to adjust PLL termination voltage okay so I see a DMI voltage let's go through all these rewrite all right so PLL determination you're saying helps with increasing the heat of the temperature of the CPU exactly so basically it increases the temperature that allows us to go lower on CPU cotton temperatures so like 1.5 is what we boot with you can use up to 1.8 1.9 which is fairly high usually 1.6 is enough for tabulate okay and we're at 1.5 right now on here so what am I looking for for increment that it set it to 1.6 okay so one point six I just type that in yeah so one point six and then apply I guess yes exactly so what else I can also explain some of the other voltages if you want to sure yeah so for example you have DMI voltage here right and it's one point eight five which is quite high but the problem is with a very low DMI in voltage you would not get a display signal so if you would cool down you would just lose this place IGNOU so that's one issue we have one solution there is for this it's using the VGA on the PCH so you would use it in the last slot but whenever you want to run 3d benchmarks you cannot use that obviously so you have to use the first PCI Express so then you have to increase EMI voltage one point eight one five eight five otherwise you would do this play signal so that's also very important voltage apart from that the top what else you see like core PLL voltage two point two volts that's the voltage that helps you also to run maximum temperature so this voltage which is used for boots don't have to adjust that in Windows and next we've got some more standard one so I see like DRAM BTT CPU VCC IO yeah I mean DRM BTT is usually just 50% of DRM in this case we're running um pretty much XMP profile nothing that special so it's just half of half of the 1.5 DRM voltage and the VTT is 0.75 DRM voltage in this case for our standards quite low on ddr4 we usually use 2 volts roughly it's fine I can tell it's fine for so those memory ICS and the CPU can handle up it's not like it's killing the IMC ok cool because I read that often on the internet that is killing the empty but around ok at least up for this time might be on 24/7 cannot tell that this okay so much what's next step so CPU VT CI oh and summation are just needed for the I see we don't have to touch these in our case for the next step is that we want to cool down completely so you grab one of the liquid nitrogen bubbles okay so I'm gonna grab one of these like just this one right here yeah okay let's grab it on go ahead just pour down okay so how much my pouring like just one one great you can start slowly and just just keep going okay all right let me let me do this I'm gonna give you the mic yeah and you can you can talk about what we're doing and let me know when to stop alright alright so we're at a moment as minus 150 right so you just slowly pour so it's still minus 150 you have to keep pouring pouring now it's minus 150 5 minus 160 - 117 minus 180 so we're getting to the spot we want to be minus 190 now we should be pretty much full pot so now we can pour a little bit more so we have a little bit boiling in - in the container keeping the temperature low yeah that looks good should be fine so you can see everything is still running so if you if you would not have touched any of these voltages it would completely free like just a lock out one more thing I would like to mention is like some of the special features which are on the board usually most of the people don't need those features obviously but for us you have this our SVG switch Reserve which we call it this which is applying additional voltages to the CPU okay so whenever we do Ln 2 LC we enable the XOC jumper and also flip the RSVPs switch and then we can just run futbal otherwise if you don't have that you will have a hard time running this let's say let's define some terminology so when you're saying a run for part is it literally just like filling the power without on - yeah exactly footbots just means as low as possible ok and for these switches here so which ones really saying like you're matching with this is the original heat switch so that's the one we flipped for applying additional voltages to the CPU so that helps cold food especially when you're below minus 120 if you would not apply it you might have trouble to boot so it could be that you have to heat up so like minus 110 to make it food but if you flip the resource which you can even put it at this temperature and I see we're at about negative 192 right now at least on the thermocoupler mocap well what's the what's about the lowest you normally run is at negative 190 here we would go as low as possible I mean that you have to keep in mind that temperature you can read here is not really correct like that the keitai probe has a tolerance the thermometer also so we just know that the lm-2 is boiling in support you cannot go lower than this so yeah okay what's the next step and it or is that it we do see so it's time to adjust the CPU core ratios if you catch ratio so go to first open cpu-z the equity version so equity version of if you see minted we disabled some stuff the SPD readout for example it's disabled so it opens faster go to CPU ratio into a bovie core group tuning selector that's correct and then just keep going you can start like 60 but 6 g ok so we're at 55 right now just for everyone watching yeah 55 when you go to 60 hit apply a blot is for active for MCB ratios yeah also we're running for Korea threat so it's possible to go hiring clock if you disable HT if is enable course that was a lot of extreme overclockers 2 for validation stuff to show how high you can talk this if you are not really a friend of that because I really want to show what the real CPUs can read off with all fours in 80 that's why we have this is easier to relate to exactly so go ahead just keep clocking up there go like in a 5 increment like up to 65 yeah 65 should be fine okay so at 65 now we'll be checking so on CPU Z I see we're at a 65 hundred megahertz so it's working so we're still at 1.6 B core so from that point on you also have to increase week or two I would say one point eight eight okay one point eight eight you just figure that out through a trial and error yeah so the thing is whenever we get new CPUs we have to do a lot of testing and see what other CPUs react so sometimes obviously some CPUs die because we have to check how high can is if you actually go what voltages can you apply because if it's a new generation new transistors and stuff you never know how they react with higher voltage for example on a guy like X we can usually only run one point five five one point six it doesn't scale higher but for K be like or especially K be like X you can run really high voltages so and liquid helium I think we used up to two point two volts okay and it's still fine still fine for lm-2 as long as the temperature is that low is fine so what's what's next keep going up yeah I keep going up let's see how high we can go where are you expecting it to fail there there okay so regardless seventy right now try to do 69 for 69 okay so go down one tick all right so we're at 6.9 gigahertz now in CPU Z and it looks like it's holding for now yeah so try to go as a 70 ratio okay so we're going for a seven gigahertz clock on what is the CB 7700 a yeah okay which we know is one of the the thermally best CPUs out there of course not quite house with a lens either right or at 70 all right so from this point on I know that if you cannot do 7.1 especially the higher you go the more difficult it will be to apply a higher ratio so it's actually also an issue to apply a higher ratio if you need special voltages just to apply the ratio itself so once you hit this region you should focus on big long ago from this point on we will start increasing the Rabi tlk all right it's currently at 100 megahertz and just saw like one point one are you yeah so we're at 100 right now right try 100.1 100.1 yeah okay it's a very small increment yeah okay so apply so we're at a 70 by 100 point one over you're going basically up in 7 mega rifle 100 point to the whole hog we can go okay all right so we're at a for any one for everyone watching we're at 7,000 15 ish megahertz going up so on 100.3 now just keep going okay just see you how high we can purchase if you know it looks like it might have crashed already yeah so that's pretty much what you can hit I mean KB legs 7g is pretty much what you can do with those CPUs is this is already a really good ship so some of them can only do like six point six six point seven so seven goes kept you like pretty good yeah yes shall we hit seven gigahertz look it was pretty good up until we pushed for a like 70 15 or something now it's blue screen so thanks no so that's the point of failure what uh when it feels here you just restart and try again like chips not dead yet I guess right no so I mean it's just unstable so usually it doesn't die for of course on ecstasy things like that happen you have to point it out it's not like everything is fine right it just happens but so if we if we have a crash like this we have retry and safe foot button which are really helpful for us so if you hit the white one the retry just reapplies the BIOS settings and just tries to reboot for us it's a very helpful feature so that's what I just did now I just hit the retry button and you can see it boots even as minus 170 degrees Celsius very cool as I understand you also have a deal itting kit what do you have for me for CPU and for a kit so this is the sky league xD later ok so you can see it so I also made the deliver for the normal CPUs and already like half a year ago I had access to static-x and stuff and it was like okay so it's not soldered anymore dammit I needed a later and by looking at the first pictures I was like it's going to be really difficult because you have special PCB design which we will go deeper into in another video I think so it was quite difficult to make this one but possible to delete and it's also necessary very cool so look that in the next video and as always err bowery he's got his own channel as well I guess if people want to find you on YouTube what are they wish they type in the power but within 8 yeah right derp 8 hour ok hello come up if you're familiar with Bill Joy's coverage on our channel these two are in a similar class for their videos so if you want more in-depth check him out otherwise links in the description below as always you go to patreon.com/scishow and Rose Nexus as I speak to the smoke thank you for watching I'll see you all next time you