So what nozzle are you using?
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So what nozzle are you using?
I can believe everyone using the nozzle to drop temps. But the flow gets reduce (as indicated in the excel worksheet) from 2.3 to 1.05 for a cpu block_chipset block with a 120.3 & 655!
Is 1.05 still a good flow rate!:up:
The real question to ask yourself is this:Quote:
Originally Posted by avrionis
Are all my temps lower even with reduced flow rate? After all lower temps is what we are after right?
Yeah, don't get too worked up with flow rates. If it's one thing I'm really learning about thermal performance is that flow rates above 1 GPM really don't make all that much difference. You really have to start getting down into the .7 GPM range before the thermal curves for blocks and radiators start dropping off.
So I agree with Tommithy's response. It doesn't matter if it gives you better temps. The other interesting thing about pumps...they dump LESS heat as you add restriction. It's the increased RPM in the pump motors that increases a pumps power consumption at any given voltage. I would have thought added resistance makes a pump work harder and dump more heat, but it's the other way around. It's the motor spinning too fast and acting as a brake.
Anyhow, in a CPU only loop with the latest high surface area blocks, flow rate becomes less and less important. 5 years ago when everyone was running low head pond pumps and large channel type blocks, flow rate was much more critical. Partly because the pumps didn't have the pressure capabilities without alot more heat and also because the thermal curves for those older blocks dropped off much more rapidly. Now with all the micropin/nozzle block you still get very turbulent flow and good mixing at lower flow rates.
My 2C.
I'm thinking the 5.5mm nozzle for dual cores and the quad nozzle for quads is a good place to start with standard pumps.
Thanks guys!
When I looked at this excel worksheet assuming using a 4.5mm nozzle. It came out to only 1.05 GPM (it is at the low end of good flow) . Is this go enough! Since one day I might put a GPU WB also. Or should I add another 655 in series! Worksheet says it will increase the flow to 1.45 (it is now at the low end of great flow):up: :clap:
What is the optimal flow rate that we should have above 1 or above 1.5GPM?
So martin do you think this setup with a 4.5 nozzle would be good idea or should i go 5.5?
MCR320
MCW60
D-tek fuzion obviously :p
Micro Res
laing D5 speed 5
1/2" tubing
On your graph i got 1.07 flow rate with the 4.5 nozzle
Good nugget of info to keep in mind! :up:Quote:
Originally Posted by Martinm210
Thanks for the post.
Oh, and this too: :)
More good info. ;)Quote:
Originally Posted by Martinm210
I'm thinking 5.5, 6.3, or even a quad nozzle. I'm just not getting that good of performance out of my 4.5 and that's on a CPU only loop with a D5 all to itself but I'm still pretty early in my nozzle testing.Quote:
Originally Posted by PeppeX
anyone tried the quad nozzle on a dual core?
martin?
Oh yeah i forgot to tell you what processor i had i have a e6600 and 8800GTQuote:
Originally Posted by Martinm210
Sorry but can someone tell me what this is really about? :D
Little pieces of red plastic.Quote:
Originally Posted by aoch88
:rofl:Quote:
Originally Posted by Kilyin
Spot on...once I get my setup going I am going to experiment with the different nozzles to what the temp differences are. Of course this won't be Martin's style of testing, but hopefully provide some extra input.
That would be great if we could get someone to test the full set of nozzles with coretemps and water temps logged.:up:Quote:
Originally Posted by skinnee
Or any sort of testing with all the nozzles to see what sort of trend occurs. :yepp:
I'm using the largest nozzle (6.5mm?) and seal on an E6850. Blows my old setup (vanilla Apogee) away. Not using the pro mount though, and it's a bish to unmount my block, so I'll leave the testing to you guys.
I have.Quote:
Originally Posted by disruptfam
Went from a Kentsfield to an e8400 and havent bothered changing nozzle yet.
Temps blow.
Hey guys,
I am waiting for my 780i to come in from my EVGA stepup. I thought maybe I would examine my watercooling setup since this 780i might actually give me a stable computer for the first time since I got in on the C2D scene which was over a year ago.
I have a thermochill 120.2 with an Eheim 1250. I was using a swiftech 6002. I decided to look into what is happening with watercooling blocks. I see this dtek fuzion is doing good things and I want in on this action. My CPU is a QX6700 B3 (wishing it was a G0). I will probably go with a quad nozzle but will my Eheim 1250 be able to push water through this thing. I don't have any other things in my loop.