ITX Insanity - My 4090 Build is Complete

foreign [Music] [Music] it's finally finished this Vision I've had of the perfect PC now actually exists every single cable is custom made every wire has been hand measured it has a custom fan splitter the most compact RTX 4090 on the market it even has a 3D printed bracket to support the second radiator for extra cooling the result hundreds of watts of performance ready to be Unleashed [Music] thank you and look it's one thing to cram all of these components together in a form factor of this size we're working with just a 10 liter case here which is kind of mind-blowing but the ultimate goal here was to you know be able to fit all of these components but still make it look Ultra Clean on the inside to be able to take the side panels off and have all of the hardware look like it was made to fit together in the first place now in my last video we had basically finished this build up until the tubing and the fittings but I've got to say that was definitely the hardest part you know we had already filled this PC case to the brim without those tubings and fittings in there so to make this work I knew I'd have to use some pretty specific and special fittings from Ek now they're not sponsoring this build or anything in fact every single fitting and tubing has been bought but I just do really have to mention that this build is simply impossible without some of these very specific fittings these low profile 90 degree fittings for example I've used two of these directly on the CPU but block and without these the side panel just would not close those feed into rotary offset fittings which I've used a mountain of here they really help line things up perfectly since I've gone with metal tubing and look I could have just gone with soft tubing colder today that would have been easy but it wouldn't have done this build Justice I'd already gone so far with everything else so why not go that extra step and do something just absolutely crazy so the tubing that I've gone with here I actually don't even think EK makes it anymore I think I bought literally the last batch but it's 12 millimeter black nickel tubing it's just absolutely amazing it looks so so good of course you just get those beautiful Reflections on it it has this like really unique smoke look to it as well and there was a pretty hard tubing run that I did have to make in this build it's from the CPU block to the GPU block it goes between the motherboard and the power supply through this really tiny Gap and what you're seeing here is like the fifth attempt I actually first tried this with soft tubing but it didn't work this run is so tight that the tubing was like literally folding and collapsing the there was just too much pressure surprisingly though with hard tubing I could just make it work and yeah this was a really rewarding one to complete I really like the fact as well that it's mostly hidden so yeah overall super happy with the tubing and the fittings I know I've used a bunch of fittings but I think it really gives this unique presence to the entire build filling the loop as well is pretty easy since I've made room for a valve on the GPU block I can swing out that side radiator completely fine and get the loop completely topped up and I've got to be honest you know seeing this thing power on for the very first time I got that same feeling when I powered on my very first PC build that just immense relief and satisfaction knowing that all of the hard work that you've done and the crazy build up it had all finally paid off of course my first PC build was nothing like what we have here but in terms of the difficulty and the new experience and all of the challenges it feels pretty equivalent now I couldn't help myself I ended up 3D printing yet another part to improve this build just a bit further so the GPU Block in this build I don't know why but it has this tendency to kind of just bend outwards away from the middle of the case and in this scenario that means towards the side radiator so what I printed was basically just a GPU alignment clamp which just attaches to the spine of the case really simple basic model but yeah it works incredibly well now the GPU block is held like just directly in the middle of the case this actually works so well that I also redesigned the side radiator bracket to work the same way so now it just hooks directly under that beam and just really satisfyingly locks into place now filling up the loop with coolant is something that I took very very seriously because this build does not have a single Reservoir because there just simply isn't any room for one so what I did was just hook up essentially a drip to the PC it's just a soft tube and a res the build is completely off at this point and I'm just naturally filling it up and letting gravity do the work the goal is to get as much liquid in there as possible I had to rotate the build a bunch of times but about 20 minutes later it had worked pretty well basically it had gotten enough liquid in there so that the pump could start pushing things around and from there I just switched it on cycled through a different pump speeds kept flipping and rotating the build around to get all of the air out and then ran the build at high pump speeds for about an hour after that the build was completely full so yeah a bit of a rundown on how that works so now the final verdict which is performance was all of this even worth it more specifically let's take a look at that RTX 4090 that thing is a Powerhouse and if you remember in the air cooled configuration of this build we were seeing just under 70 degrees at a room temperature of 22 and that was at full load 4K gaming and our liquid setup gets about the same result but if we take a closer look we can actually see that the cooling output here is actually much better firstly the fan speeds that I'm running for this liquid cooled build are much quieter than the air setup with the 4090 Fe and so same thermals app lower noise technically that's more cooling performance all right but more importantly the 4090 in our liquid build is pulling about 20 to 40 Watts more than the 4090 Fe was and that alone is increasing things here more than a few degrees if you remember we didn't actually liquid call the founders Edition card I instead used the inner 3D IHL X3 and for whatever reason the 4090 chip on this one just pulls more power to be honest that extra 30 40 watts is kind of tipping things over the edge here in some cases I saw this thing pulling above 430 Watts pretty comfortably which is nuts now my usual fix for this would just be undervolting basically you're just running the GPU at a lower voltage and since we run the same clock speeds there's no loss in performance but the temperature and power savings are just insane there's basically no reason you wouldn't do this on something like a 3080 or a 3090 for example but doing this on 40 series it's different I've already made a video talking about this but yeah in summary it just feels really janky the GPU says it's running at factory clocks but you take a closer look and Benchmark the performance there is actually a decrease a few people I've spoken to about this have said it's something called clock stretching which sounds about right and yeah I would just rather not the good news is that we can still get things under control by just slightly lowering the power limit doing this we of course do see a small reduction in clock speeds but at least the reported GPU clock isn't lying to us this time around it's showing us exactly what it's running out so with a power limit of 85 this build ends up working extremely well that keeps the 4090 running under 400 watts which is still a very generous amount and kind of what it should be running at it's what the Fe is typically running at so very minimal performance loss when doing this I bet it is enough to get the build running in the low to mid 60s and to be honest I'll take that I mean the performance that this thing is pushing out the overall cooling is actually pretty insane for the form factor realistically if you took a hybrid 4090 and installed it in a glass mid Tower The Thermals would probably be pretty similar so yeah I'd say that this build has been a success the cooling output is an upgrade over the air setup that I was running previously basically I can now run the 4090 at full load but at much better noise levels I'll mostly be playing OverWatch 2 on this thing at 1440p 240Hz and I mean the temperatures here the system is barely breaking a sweat while we're locked at 600 FPS the ryzen 7800 x3d as well I was a little bit concerned for what The Thermals would be like there since it's sharing the same warm loop as the 4090 but yeah thankfully no issues there at all in most of the games I tested I saw it pulling under 60 watts which is just nuts and that is definitely helping our 4090 run as cool as possible for example I don't think this build would have been possible with a 3900k it would have been adding too much heat to The Loop and that would have made the GPU run even warmer now for those of you who are daring enough to try and recreate this or for those of you who want to build something you know kind of similar I will leave all of the 3D files in the parts listed down below uh but yeah it goes without saying this is like the most difficult PC build that I've ever done definitely the most amount of hours that I've put into a single build as well but for me it is the perfect PC like I've just never built something that looks this good and this clean and also nothing close to this amount of cooling performance and density either foreign

Channel: optimum

Views: 495,043

Keywords: formd t1, watercooled formd t1, optimum tech, dual radiator t1, RTX 4090 build, 4090 pc, ITX 4090, smallest 4090 PC, best ITX gaming PC

Id: X0ukdo7Xx7U

Length: 9min 31sec (571 seconds)

Published: Sun Jul 02 2023