What I want to say is that it's much better for silence/performance to have below 800rpm push pull 30mm radiator than having above 1300rpm 60mm push radiator.
Push - pull for 30mm rad is meaningless. All 30 mm rads are already optimized for low rpm.
When I see pictures of the case, I'm already convinced to pay )) but it doesn't match my requirments for water-cooling. I'm so sad now.
How about a 60mm rad with slim fans in push pull? The way it looks it could probably fit the additional 5mm but I have no idea how slim fans in push pull would perform.
The used Nemesis can take 275w in push configuration, and that is not enough.
And yeah ofcourse i want to OC the system.
If we are thinking about OC, let's add 20%, so total TDP will be 330w. GTS280 (which is 30mm rad) is able to dissipate 165w in 750 rpm. So to cool components with possible OC we need 2 GTS280 in the loop, additionally, this system will be very silent.
The guys above explain math, and all of this is before we calculate the case restrictions in, wich it have with all this small holes.
I don't want my collant temps rise more than 10c delta, so that's why I need at least 3*140 area.
Don't forget, with the Sterrox there is also the thickness of the 120>140 adapter...
As for 140mm slim fans, maybe while talking to Noctua about Threadripper 2 & the NH-U9 you can bum a pair of their prototype NF-A14x15 PWM fans...?
You guys really need to run full load at 750RPM and <10C above ambient huh.
SFF case is about compromises. For this case, I wanted the best noise and cooling possible for something portable (less than 20L). My current target is 500W, either < 25C delta @ 750RPM push-pull, or < 15C delta @ 1300RPM-push pull.
For Gear 3, I'm trying to get *two 140x25mm + *two 140x15mm + 280x55mm radiator to work. I will be reaching out to Noctua to get their 140x15mm fans. I think Push-Pull on the Nemesis 280GTX will take the cooling to the absolute limit. Noctua rep at Computex looked over the build and told us the Sterrox 120mm will outperform my current Noctua Chromax 140mm. So we will try that as well. They are also working on the Sterrox 140mm. I would imagine that will only perform better.
If Push Pull @ 750RPM can get me within 30C of ambient with OC 7900X and Titan XP, I will be very happy with this case.
Aside from benchmarks, in real world use, as
prava mentioned, you are less likely to have both the CPU and GPU at full load.
Putting 5.2 inside - hmm ... You think we really need reservoirs ?? I would rather to see place for fill port and bleed port and thats enough, wich again - would bring some space up there
The 5.25" bay is also for people who want more I/O ports. For example. I'm trying to get dual Thunderbolt 3. I'm still unsure if I need to put the controller board on a PCIe slot or just use the 5.25" bay. There are also people who want USB-C and SD card I/O.
I'm currently using a T splitter to drain the loop. It works fine and takes very little space. Unless you have something very specific in mind for fill and drain port, I didn't want to over-engineer a solution.
I am pretty sure DA2 will fit more rad surface but can't tell for sure untill i get my hands on one.
With DA2 , you can throw components left and right to fit more cooling, with using sff gpu, like zotac 1080 ti mini and available water block for example. You can make sandwich of 3 vents and 2x140 rads with no other components on the way. That is huge advantage.
I visited Streamcom during Computex, I played with the the regular DA2 and the window variant. Here are my initial thoughts:
- with window, the DA2 doesn't have more cooling capacity.
- without window, the 280mm radiator + fans are parallel to the mobo like the M1, the problem is that the DA2 side panel vents are more restrictive, so it might struggle more for air.
Your case can not exploit case of using small gpu's wich i think most of people already have or will have.
In Gear 1, 2, 3, the space can be used for 3.5" HDD or 120/140 radiator + Fan. I will reveal when I have more time to make pictures.
mATX support is your advantage clearly, but how will someone cool 2x serious vga ?? i doubt it can cool one, let alone 2.
This is a multi-layered question. Let's break into scenarios.
Gear 1 is for air cooling. Gear is is basically an M1 standing up with more air flow. I'm not terribly concerned about *one GPU. For *two GPUs, we will give recommendations after some testing on our end. People running *two GPU on mATX via SFF is a small population these days. There are a lot more people with ATX mobo and multiple GPUs, and that's outside of the use of this case anyways.
Gear 3 is for full loop water cooling. *Two GPU would be an interesting test. I have to get back to you.
Again, SFF case is about compromises. I don't want to make the case bigger for corner use scenarios.
On a general note, for the current prototype, my goal is to test the cooling capacity for both air and water. For the next prototype, I will focus on maximizing component support. My philosophy is making sure the concept is fundamentally valid (is the case design even pursuing, does it move the needle compare to the other option out there) before trying to maximize component compatibility.
