Gadgetory

everyone we're at Computex 2018 looking at one of the first things you'd seen at the show so this is really cool last year we spoke with kingpin at the ebj headquarters and we're back now talking about something that at that time wasn't done yet but this is a hybrid sort of closed-loop ish solution for liquid nitrogen cooling where basically we've got two tanks on either side of this system and it's feeding in so there's a CPU block and a GPU block and same ideas open loop water cooling except it's liquid nitrogen so that's what we talked about today pretty cool for overclock and as I understand it kingpins actually using this for his real benchmarking so this isn't just the show system it's the real thing before that this video is brought to you by thermal Grizzly's high-end thermal paste and liquid metal thermal Grizzly's cryo knot is an affordable high quality thermal compound that doesn't face some of the aging limitations of other pastes on the market cryo knot has a thermal conductivity of 12.5 watts per meter Kelvin focuses on endurance is easy to spread and isn't electrically conductive making it safe to use on GPU dies thermal grizzly also makes conductor not liquid metal which we've used to drop 20 degrees off some temperatures than our dee-lighted tests buy a tube at the link in the description below so walk you through it basically on this side we have an input tank so this is where all the LNT is coming from right now there's a stainless steel hose on the backside feeds in through up here at an intake manifold and then that is split between two valves one for the CPU one for the GPU and those are controlled based on two things as well one of them is current so look at the 12 volt line and see how much current is being pushed so if for example you start a benchmark and it starts pushing a lot of current before there's actually any temperature build-up you'll get an instant response or near-instant with low latency versus typically if you're reading something like a socket temperature which this is with a k-type thermocouple which we'll talk about in a moment those take a little while to heat up because it's a copper block needs to actually have some heat to sink first so if it detects a high current load the valve can open up sooner and try and achieve a target temperature and that's the next big thing with this the temperature target is set via software and there is a controller in the backside of this case that we have a shot of hooked up via k-type thermocouple so you can set X degrees Celsius and then it will try to achieve that and as I understand it achieves it pretty quickly typically within 20 seconds or so depending on how low you said it as opposed to pouring it manually where you're trying to achieve maybe full pot or something like that for Ellen 2 so that's the basics now you have as I said with the valves you have a current control and a temperature control based on the thermocouples in the sockets the CPU valve comes in through here on to the X 2 99 CPU it's on currently the EVGA dark motherboard actually one of the board's that we liked a lot for overclocking so feeds into a block and this is kind of it's it's a very large block on top of the CPU so you can think of it as a truncated ellentube pot except on the top there's a copper plate and then internally there are channels so it's actually got it's not like micro fins but it does have channels for the Ellen 2 to flow through and do some cool in it and of course when you're talking to Ellen to cooling at some point things like micro fins probably don't matter a whole lot anyway it's not like we're working with water here as it goes through comes out and goes out through the exit manifold and then comes back into the other tank on this side over here behind me where some of the ln2 can be reclaimed so maybe gasps it just kind of depends on if for example this entire system is frozen over like they're pushing really hard then you'll be able to reclaim more of the El and two more of it will stay in liquid form less phase change going on whereas right now and it's idling just apply a bit more burning off so as I understand it when this stuff moves over to the other tank kingpins able to reclaim something like 75% in a good case scenario of the ln2 so there's actually some recycling a balance here going on and more importantly just way more efficient to work with and standing there manually for hours pouring that allen to thermoses over and over and over so that's the I think that's the basics of it couple more things here this is a Titan v card it's got a GPU block on it similar idea to this where it's a custom I guess machined or CNC block copper and it's got some channels in it as well and then for everything else it's stainless steel hoses with just insulation on it and you'll see some foam build up in some places as the temperature drops right now it's running pretty conservatively because otherwise gets a bit loud for a couple other things here for the components they've got a 79 80 XE which I know is a meme with our audience but 79 80 XE this gets pushed up to about 5.7 when they're actually trying for frequencies so 5.7 gigahertz here the GPU is a Titan V as noted it's been modded a bit and it can get up to something like 20 300 megahertz I think saying mod it a bit maybe it's a bit of an understatement but a couple of mods on there and 23 other megahertz HP m2 from what I understand doesn't push quite as hard it's a bit of a different beast so that's I think that's the basics for you as noted controller on the backside talks to software on a laptop via Wi-Fi or wireless and I think that's all done through Raspberry Pi and some custom Python program as well so on the front there's a relay this is being fed by Raspberry Pi via five volt and that's what's controlling the valves as well and we might have some audio that's or you might be able to hear it while I'm talking about there's clicking every now and then that's when the valves are opening and closing based on whatever the softer is set up to so I think EVGA by the time this video goes live we'll have done a live stream with this system you can probably see more there in terms of results and actually pushing it right now it's more or less just in showroom state but that's it for this one so they call it the Robo clock or will probably have an article on it you can click that in the link in the description below as always go to store documents access net or patreon.com/scishow here as exits to helps out directly with these trips thank you for watching I'll see you all next time