Flow sensor reading low..

spikerules

spikerules

spikerules

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My flow sensor is giving me a reading of 0.8 GPM, which sounds horribly low to me. This reading is at full pump speeds too at level 5 on an XSPC variable D5 pump. Is this normal?

I also placed the flow sensor at the beginning of the loop right after the res output and Q block with valve... Any advice/suggestions?
 
Managed to make a .1 difference by bleeding the loop a little more. Took some coolant out of the reservoir and opened the top port and shook the PC a little. Then I started to slowly fill it back up. A few bubbled went through but not a major amount...

Anyone got any advice? Does it really matter that much for temps? I seem to be getting great temps on my 980Ti. Never goes above 27c on full load with Heaven. Not managed to install any of my games so far though so not tested on a full blown gaming session!

My CPU does get hot. It's oc'd to 4.6GHZ and stable at 1.28v. I think I can get it down if I knew what I was doing in the bios! These are with setting in AI suite 3. Temps have been discussed in my other forum post so won't go it I much detail here!
 
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Deathjester said:
What does your loop look like?
Click to expand...

This. Every 90 degree joint and every radiator and waterblock slows down the flow rate.

It always used to be that you should aim between 1 and 1.5gpm in a system. One d5 can acheive this but as water loops have expanded with more and more rads etc, this can easily drop.

Also the head you put on a d5 makes a big difference to flow rate too.
 
It's a D5 barrio on a Primochill reservoir. Like a combo unit! I've posted pics of my build in various states on other topics. I might collect them all and place them I. One place with my final build... But yes there are about 5 90 degree bits powers bends in there as well as the acrylic bends etc so a few!
 
Is that not at least 200 litres per hour flow rate?

If so I would say that is fine with the number of bends you have!

I have two loops with D5s, my GPU loop runs around 220lph and CPU around 260lph with the pumps on 100%.

Check my sig link if you want to see how many fittings and that I have used.
 
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25g8mrl.jpg


Some of the bends look quite restrictive.

The 90 degrees will refer to bends as well as fittings, and you have a lot of bends.
 
I used to run mine with just 0.5GPM. Flow rate of 1GPM magic number is over rated IMHO.
(However I now have 1GPM with use of 2xD5s)
 
After seeing that photo I would say 0.8 GPM is pretty damn good!

And using milk as coolant is certainly different ;) :D
 
It also depends on the pump head pressure in your loop.

I use a much lower speed on my D5's because I like the pressure to be lower.

Same pump speed with lower flow = higher pressure.
 
yeah every bend will slow your flow rate down so now you are 0.9gpm Id say that was pretty good for your system.
 
Greebo said:
U SAID U BLED IT A BIT MROE AND GOT ANOTHER 0.1 OUT OF IT :p
so 0.9
Click to expand...

Doh! You're right! However its managed to get to 0.8 again so... oh well! I have got the pump running on level 3 of 5 and its sat at 0.6. I don't notice any temp difference but I certainly notice a audible difference so keeping it at 3.
 
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