2 pump power flow

You got it correct Many people are often misled by certain quarters with the wrong facts and information so that is why they end up purchasing 2 pumps for a single loop. Unless we have a very weak pump or the loop is too restrictive then it makes sense to have 2 pumps but in normal scenarios, 1 pump is often enough Moreover, these are physics. If you have a small radiator and even if the water moves at 10,000 l/h, it will still be hot. If your water moves slowly and you have a super big radiator, it performs much better.

Previously I used to have a customer that insists a dual pump setup would give better temps and did not want to listen to my advice. I was trying to help him save up the money for something more worthy to invest but he refused. However after he bought the 2nd pump from me and tried for himself, he finally agreed with what I told him. Some people try to outsmart the law of physics but for me, I always follow it (because I'm not Einstein)

@shepard..

Bro, rule of thumb in w/c...never settle for just one loop setup. There's always an upgrade..

@Big boss shepard, your setup looks perfectly fine. Our WC environment runs in a closed system and in a closed system, the pressure is adequately maintained. The only issue is when you first bleed the loop and existence of air inside the loop would require the pump to work harder (extra pressure). Once it stabilizes and you close your reservoir cap tightly, you need not worry about it.

@ shepard
bro..do some modding to the case and fit the 360 rad inside. Try not to use too many tubings in ur loop. looks better and better flow. Then, loose the hdd bay to fit a 240 rad at the bottom for gpu cooling.. just a suggestion. not a creative modder myself.

Off HT and see your temperature go down significantly

@shepard,
finally I can see your pc already, looks complicated.
WC = toilet, WC guru = hmm....jkjk

picit je tube tu time die running 

Just let the loop continuously and the bubble would disappear after a day
I remember if you a weaker pump then the bubble would remain just rock the chassis and press the tubing

aku bese picit je..jadi je..maybe your flow is too weak to push the air buble

I normally run my pc for 24 hours without the others being powered up
Will continue topping up the water. This way any air bubbles will be displaced
Perhaps the loop is to restrictive for the d5 since you mount the rad on top

Did you try turning to speed 3 and then speed 5 for a few times.
This would help

try tilting the case flat on its side, tilt it to many different positions but make sure your reservoir is seal tight first. If you are strong enough carry the case & shake it 

time to dual pump+dual loop

I had a friend who faced the same problem. the problem remained for several days. He went for another pump thought it would gave a better push to the flow,but end up frustrated. What we did then was checked all the rad n cpu block. Then found out that there's some clog in the cpu block caused the low flow. He didnt flush his new bought rad, so the leftover inside it caused the clog inside the cpu block. Thus, mr.shepard, myb u should try to look inside ur cpu block n make sure its clean.

something im working on

ahaha nothing to korek with me.

anyway naked RX360 is sexy.

just received from slovenia.EK-FB ASUS M5E Acetal+nickel

Can't wait to build one:


But this interior design is BORING. It should have been inverted.

wad kind of fittings? many 90degrees?

if normal straight fittings then shouldnt be a problem liao (provided your blocks are low restrictive)...because even a mcp655 can handle 1 rad, 1 cpu block & 3 gpus with still ~1GPM.

If you take a look at the chart, 2 gpu for mcp655 gets about ~1.2GPM & each radiator usually have quite low restrictive compare to heatsink blocks plus we are talking about mcp355 which has a higher head pressure so you should be all good.

If you are very concerned about the flow rate you can put your gpu loop in parallel. This will give you higher pressure to your whole loop but bear in mind you will get less flow rate to the gpus. Temps for gpu might be a bit higher but test it first, if difference is not that much then go ahead. Rest assure for your setup that pump is sufficient even if gpu's are in series