Gadgetory

by this point in my life is a PC builder iBook close to a dozen with custom loops now I'm certainly not the best at it in my designs don't please everyone it's inevitable this is the internet but I've learned quite a bit from my experiences regarding to bending flow order and radiator config so I want to focus on a couple of those in this video today because I received a request from a fellow viewer in the comment section of one of my previous videos his question essentially was how many radiators do you need how do you know how many you need and what will happen if you don't have enough of them so let's answer that question today so I actually have some personal experience with custom loops lacking sufficient rad space and not only that I've got experience with rads lacking sufficient airflow there is a difference between the two and you'll know based on the symptoms so I join imagine any closed loop without enough airflow and radiator surface area will incur excessive heat buildup the liquid in the loop mostly water doesn't have magical dissipation powers it may have a relatively high heat capacity but it'll try to equalize much like any other medium my general rule of thumb is to allocate at least 120 millimetres of diagonal rad space that looks something like this per processing unit so that's per graphics card and per CP for example a standard one CPU one GPU config that's most builds I imagine will require at least one of these that's a single 240 ml radiator we look really weird to put two 120 s in a custom loop independently but I guess you could do that too if the pump is especially weak it might not be enough still DD C's d5 pumps are plenty you don't worry but if you spliced both the CPU and the GPU into a single a IO config like this one right here from deep pool then this pump in here is probably not going to be enough and the same goes for most ASA tech pumps out there so pump speed up to a certain threshold yes it does make a difference if you're not pulling heat fast enough away from your units then they will overheat your entire loop will and radiator service area is another factor to consider but these aren't the only ones fan placement rpm and access to fresh air should all be considered as well I can speak to these firsthand do you remember my andromeda custom loop build that's actually my favorite build to date from an aesthetic standpoint it was severely crammed that was something I liked about it but it also it was starving for airflow so notice the positions of these fans here they were actually placed outside the fractal defined seat chassis meaning they only had about two or three centimeters of breathing room which is simply not enough it's not recommended I don't recommend you do this and I thought it would be OK at least for some light gaming and editing of course the graphics part isn't gonna be you know working that hard when you're editing and it proved to be just fine for that and some light gaming I can get away with but when it went you know when it came to a really heavy intensive game where both the GPUs and the cpu were all being utilized pretty heavily this simply was not enough there was not enough air being introduced into the case to keep that the fluid temps down especially but the in the entire system as a whole every unit was or heating yeah not recommended but in combination with a 360 mil rat is a copper rad from alpha cool 30 mil thick look that was fine and I'd say that you know if I did that again it would be okay I just had to emphasize airflow more than I actually did in there so SLI GTX 280s and a 6700 K all overclocked definitely wouldn't hold up and this one actually had to down clock everything back to stock to heat those temperatures in check and even then I'm pretty sure my fluid temperatures were bridging into some uncharted uncomfortable territories that's something else I want to touch on fluid temperatures the water in your loop shouldn't generally exceed I would say 40 degrees Celsius you could probably get away with a bit more but some pretty bizarre things start to happen in the mid to high 40s I can attest to these again first hand this is all just one big learning experience for me first pumps can be permanently damaged and these aren't cheap components by any means since they rely on liquids in the loops to cool the bearings not DDC pumps in this case but ki5 pumps in particular any t delta higher than roughly 10 to 15 degrees of room temperature can substantially reduce the transferable properties of the water the conduction equation which solves for the rate of heat transfer that's Q over T generally between two mediums it indicates that temperature deltas are the driving forces of this rate of heat transfer if the difference is pretty small you know everything else constant then the resulting numerator is smaller and the resulting rate of heat transfer is lower these are directly proportional if the difference between t1 and t2 is higher then the numerator is bigger and thus QT is conduction isn't the only force at play in a system like this but it does get my point across and it is something to consider a hot pump is no good pump for example I prematurely concluded here that primo chilled revolver fittings did this to my PE GG tubing however what I ended up finding out later was at the 70 100 X that's the i9 Intel CPU that will fry eggs guaranteed and Walter white version 3 was dumping far too much heat into the loop with the overclock I was running was like 4.7 or 4 point 8 gigahertz in the short run temperatures were fine but as discussed in this video right here custom loops and AI O's require a lengthy torture test before the temperatures of the liquids in them fully equalized in a nutshell with this one I underestimated the amount of heat the CPU ended up dumping into the loop hence the softening of the PE TG and strange warping you're seeing here what I want you to take away from this custom loops are not the easiest things to tackle and you'll have to consider several variables per build even the simplest things though you don't want to overlook especially like with a number of rads and you know the amount of airflow you have in your case and fluid temperatures TD pees all of that so make sure you consider all of those factors before you jump into a build like this one because it's gonna really suck if it ends up not being a fully stable system in the long run especially after torture testing the thing because you found out you didn't include enough radiators or maybe you're using too weak a pump or you just have too much in there and it's just heating the liquid up too much that it's not being dissipated quick enough and if you don't have enough rad support space in your chassis then that means you got to change your case and yeah the rabbit hole never ends that's custom loops in general though and that's kind of why I like them they're blank slates you can really get creative with these builds and make them look unique but there are again several factors to consider if you liked this video be sure to give it a thumbs up I appreciate that thumbs down the for or the opposite click a subscribe button if you haven't already and stay tuned for more content like this this is science studio thanks for learning with us you