You assume I haven’t checked power consumption. CPU at full load on its own pulls over 860w at the wall. Power supply is a prime platinum which puts me around 90% efficiency at that load take away a bit for idle parts and fans and the CPU pulls around 675-700w at my clocks.
GPUs will be modded to allow more power consumption. That being said with a three way sli setup they aren’t going to pull more than 250w or so just because sli life.
Normal gaming load with a pair of cards and current cpu clocks is around 800-900w depending on game with the additional card it will be 1050-1100w (at the wall) so heat output will be around 950-1000w shooting numbers loosely.
I could easily cool this with a single 480mm radiator, assuming I didn’t load the cpu at the same time. The current setup even using just the single d5 pwm would be plenty of flow. The 2*240 and 1*360 radiator setup would easily suffice for cooling power.
I am adding an addition pair of 360mm rads and a 160mm rad plus an additional pump. The question for me was do I keep it as a single loop or split them out. Sounds like I should split them out. That will give me around 700w cooled by the 2*240 and 360mm rads which should be able to do at nearly passive fan speeds. The gpu loop would be around 750w cooled by 2*360mm and a 160mm rad. This again should allow super low fan speeds even under load.
It does have me curious if I could add a silent switch and run it passive at times.
I didn't assume anything .... I had trouble understanding what was staying and what was going ... did best i could with what i could inerpret erring on the conservative when not clear.
I have SLI on 2 cards and they are both pulling 20% over TDP
Can only work with the information provided, as it didn't say whether it was gold or platinum so took worse case. 860 watts at the wall CPU only would be 775 output The folks at hothwardware were not able to get more than 590 in their test, and to see that 860 at the wall... then we have also got storage, the pump, RAM, rest of the CPU package \ and whatever else in there. I'd be surprised to see what you are expecting from the CPU while gaming ... as won't see any load past 4th core. Did a TR build for a buddy he wanted it in a single box but I couldn't accommodate.... he has a 2990WX which he now uses as his game server. He tried to have it be dual usage as his gaming and server box but he found gaming performance less than satisfactory.
What you have and what you were adding was a bit hard to follow so if I understand correctly..... we'll do the math again
Swiftec MCR220-QP (2 x 120mm 34mm thick)
Swiftec MCR220-QP-Stak (2 x 120mm 34mm thick)
Swiftec MCR320-QP (3 x 120mm 34mm thick)
Barrow Dabel-60A-360 (3 x 120mm 34mm thick)
Barrow Dabel-60A-360 (3 x 120mm 34mm thick)
HWlabs N160GTX-F2PB (2*80mm*54mm thick)
The 2 x 80mm wont deliver very much ... < 50% of the 2 x 120s
Frankly I am surprised you can 13 x 120mm of rad in that mATX case.... It's a huge mATX but still a bit crowded.
Lets give the skinny 34mm the benefit of the doubt and treat them as if they were 45 mm ... near passive is 350 rpm, let's use 1250 rpm. Each 120mm @ 45mm is going to give you 61 watts of cooling at 1250 rpm, and you have 7 x 120 ... so 1,000 rpm gets you 7 x 61 watts for 427 watts of cooling. Each 60mm of 120 will give 63 watts of cooling so 6 of those will get you 378 watts. Being generous on the 80s, lets call those 30 watts per and assign 600 watts
427 + 378 + 60 = 865 watts of cooling at 1250 rpm
860 at the wall is @ 775 output
so 775 (CPU) + 3 x 250 (GPUs) + 2 x 24 watt pumps = 1573 of theoretical max power draw for water cooling ... if as you said, that 775 is just CPU, than have to add in 40 for MoBo, 10 for RAM, 10 for storage.... 15 rad fans (20 watts) , the USB stuff and max possible load would b around 1675 .... I certainly would not run Furmark and Blender at the same time on this build
No that case is big but still a bit crowded even is it is mATX so I dont know that 60% heat load is enough to account for the fact that not everything is a peak and heat radiation from hot components... but less use it anyway.
1575 x 60% 965 watts > 865 so rpm would need to be > 1250. At 1400 rpm, you should get to about 930 watts of cooling . But again... the assumption here is your 860 watts at the wall is with CPU's 32 cores under a stress test ... when gaming, if not going anything else in background, I would expect no more than 250 - 300 watts.
So yes, if you want to have your 3 GPUs and 32 cores all running full tilt, you'd need to use 1350 - 1500 rpm fans. I know a few folks with TR builds who have run games on it but just for shitz and giggles. I'd be surprised to see it break 325 watts at stock playing a game and not much more with a heavy OC. If ya are running a workstation app w/o CUDA and the GPUs are relatively idle, you should be fine. If you gaming w/ cards going full tilt and CPU yawning with just a few threads in play you should be fine. In both cases I'd expect you can keep fan rpms down at around 550 - 850.
If you go single loop, I'd use a 35x2 pump....even that is tight
Remember that fittings add a lot of resistance....
90 Elbow = 0.64
45 Elbow = 0.32
Pass thru 0.40 - 0.75.... Now add the loss thru each block, each radiator, pump ,reservoir and it gets up there
CPU block 1.8 psi (0.5 to 3.8)
GPU Block 3.0 psi (1.2 - 5.0) )
A D5 pump produces about 4.5 psi at 100% speed @ 1.0 gpm ... so no ... I don't see a D-5 pump pushing thru 7 or 8 rads, lotsa fittings , a CPU block and 3 GPU blocks. A 35x2 can do about 11.5 psi but that is a bit scary. Even with 2 loops,
At 1.25 gpm ...(links in previous post)
CPU Block = 0.9 psi
GPU Block = 1.0 psi per block + 3.0 psi
Radiator = 0.6 psi
Loop 1 = CPU + 3 rads + rad fittings = 1.8 + 1.8 + 2.4 for rad fittings = 5.0
Loop 2 = 3 GPU + 4 rads + rad fittings = 3.0 + 2.4 + 3.2 = 8.6 psi
All in one loop = 9.0 psi and that's with no fittings. Each set (2) of rad fittings adds at least 0.80
