Underwhelmed with flow rate on new build

haaammit

haaammit

haaammit

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Evening all. Just completed a build in an O11D EVO and I really like how it looks, however, the flowrate is not great. At pump speed of 50% I'm getting about 40 l/h - on 100% 130l/h That seems on the low side. I'm using an Aquacomputer HighFlow LT sensor. Gear is as follows:

EKWB EK-Quantum Reflection² PC-O11D EVO D5 Distroplate
2 x Magicool G2 360 slim rads
EKWB EK Velocity CPU Block
14mm Hard Tubing
XSPC fittings
Power Color Liquid Devil GPU

The tubes to the rads have a nice 90° radius bend to them, as does the CPU block. I also have a 180° radius bend for monitoring bits (thermometer/flow meter). I have used the EKWB Rotary 14mm Offset fittings for a lot of the distro connections, and there's a couple 21mm ones in there as well. The GPU has 2 90° elbow connectors.

Appreciate any thoughts. Cooling seems ok so far, but I still think the flowrate is low. 50% pump speed is inaudible, going higher then obvs increases the noise. Cheers
 
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I fret/worry/mixmax almost everything, so it's just another thing I'm paranoid about getting wrong lol! I do have a spinney round propeller thing in there that no longer rotates (it did on my last build, albeit a bit sluggishly, but doesn't on this build, hence my flowrate question), and I want to check there's no crud in the cpu block later today, so I'll take the spinney thing out whilst it's apart and see if that makes any difference.
I'll post some pics later today. Stuff arrived to sort out the PCIE cables, so once that's done I'll luzz up some pics maybe in the gallery thread!
Cheers
 
If you've double checked that you haven't accidentally put the flow into an outlet on a block then there's not much to worry about if the flow is still actually going. Those visual indicator spinners introduce enough impedance on their own but a distroplate is likely to cause a fair bit given how many sharp bends you're pushing round.

If the temps are fine without having to ramp the fans to oblivion then as above, don't worry about it.
 
Sounds like you have a blockage in one of the blocks tbh , for reference i am running 3 x 360 rads , a cpu and gpu block on a 011XL distro and get a max flow rate of 180lph at 100% using a single D5 pump. have had a blocked cpu waterblock before which reduced flow rate down to 70lph at 100% . How old are the blocks and have they ever been cleaned ?
 
Well I took the spinney jobbie out, and cleaned out the cpu block, which did have some crud in it. Now getting +50 l/h and +165 l/h respectively, so that's an improvement. Guess I'm just stressing too much!
The build is now complete, except I haven't decided if I'm going to keep the screen in the case or swap it out for another fan on exhaust. I've been experimenting with an old 7" tablet using spacedesk as a display panel closer to me, and being closer means I can have more info on it, so not 100% on if the case screen is staying or going.
Here's one pic - I've put some more in the gallery. Not too bad for my second ever hardline build lol!
Ta for the comments :)
V54UdAD.jpg
 
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165Lph is much better and where i would expect it to land looking at the loop config , once it is fully bled of air that will increase a little and probably end up around 175-180 lph . Nice looking build btw :)
 
cjgardens said:
Looks good. Have the temps gone down also? I find it doesn't make much odds having the pump run faster.
Click to expand...
ty!
I haven't really fully tested the temps yet, but it's looking good so far. Gor general use, with the pump on 50% and fans at 30% (600rpm) it is totally silent and is keeping everything cool and the temp diff from ambient to water is +4°c so yeah, that's good. Need to fully test under load and gaming, early quick tests though show no obvious issues!
 
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