can a d5 handle this???

[louie101086]

i have 1 d5 and wanted to know can it handle a mcr320, apogee gt, dd 680i, and a mcr220 all in one loop

[p8ntslinger676]

should be able to :D

[ColonelCain]

It should handle that fine. Happy cooling! lol...

[Envydia007]

Guys would there be no problem with so many component in the loop?

[[XC] DragonOrta]

No problem what so ever.

[CedricFP]

The D5 is a vastly underrated pump.

[Solarfall]

to give a a short answer.. yes it can handle all of that... but so can ddc2 witch gives you a little bit better headpressure.. its smaller and more superior in so many ways..

[clone38]

Im running a cpu block,northbridge block,southbridge block and 8800 ultra on one D5 at the moment,temps are 36c idle 48c load.

[parth]

to give a a short answer.. yes it can handle all of that... but so can ddc2 witch gives you a little bit better headpressure.. its smaller and more superior in so many ways..

Well now with the 3.2 version they're a lot closer than they used to be - in fact without the mod top the D5 performs better.

[Methylphenidate]

I've had as much as CPU >> GPU1 >> GPU2 >> HW Labs 120.2 >> HW Labs 120.2 on a D5 with absolutely no problems whatsoever.

[Patriote]

Yeah i agree with everyone here. It should be fine!

[Solarfall]

Well now with the 3.2 version they're a lot closer than they used to be - in fact without the mod top the D5 performs better.

that is true... lol forgot to add the top factor to my post :rolleyes:

[ranker]

i have 1 d5 and wanted to know can it handle a mcr320, apogee gt, dd 680i, and a mcr220 all in one loop

You'll be fine Louie.

[septim]

should be fine. i'll maybe add another d5 for added performance/flow/pressure and redundancy....

[GameGuru]

I just ordered a new WC build and getting the D5 as well. Should be fine and basically performs the same as a DDC-2.

[louie101086]

i use to want a ddc but i heard they dont last as long and some of those pumps were failing for no reason

[MotF Bane]

I just ordered a new WC build and getting the D5 as well. Should be fine and basically performs the same as a DDC-2.

Performs the same as a DDC-2? The head pressure on a D5 is 11 feet, the head pressure on a top-modded is 19 feet. That's a pretty big difference...

[GameGuru]

Yeah I was really close to pulling the plug on the DDC-2 as they are great pumps but I went with the D5 for reliability reasons. Also it comes with a 5yr warranty compared to a 2yr with the DDC. Some people say that the audible noise of the D5 is rather loud when set to the highest setting (5), that it makes a whine, I don't know how bad this really is however, hopefully it's not bad.

[GameGuru]

Performs the same as a DDC-2? The head pressure on a D5 is 11 feet, the head pressure on a top-modded is 19 feet. That's a pretty big difference...

Sorry I was speaking from a real world difference and not specifications. They DDC-2 out preforms the D5 by about ~0.3C, have a look at this thread and the post from Cathar http://www.xtremesystems.org/forums/showthread.php?t=148668


Okay, here's how it's done.

Component fit equation: f(x) = a*x^b + c*x
Pump fit equation: f(x) = a*x³ + b*x² + c*x + d

Applying least fit curve fitting using above equations to the data points provided in the OP, and to various data points obtained by eye-balling the pump PQ curves.

Component Curve: f(x) = (0.321617*(x^1.3519)) - (0.130581*x)
D5 Curve: f(x) = 0.000369123*x³ - 0.0161496*x² - 0.0271304*x + 3.46636
DDC Curve: f(x) = -0.0000158795e*x³ - 0.00544881*x² - 0.280997*x + 5.78482

Ok, let's now do the ALL IMPORTANT sanity check, and plot our computed curves against the raw data points (plotted with straight lines between them).

http://www.employees.org/~slf/curves/sg-sanity.png

Okay, we can see that our fitted curves pretty closely match the original data. Since we straight-lined the points between the data, there's going to be some variations on the graph, but you can very plainly see that the fitted curves do a very good job of matching the data points.

Right, let's remove the original data sets to clean up the graph:

http://www.employees.org/~slf/curves/sg-clean.png

We can then look at the points of intersection to find the flow-rate differences.

Looks to be around

D5 = 5.9LPM (~1.56gpm)
DDC = 7.0LPM (~1.85gpm)

Without then specifically applying that to a flow-performance curve, just off the top of my head, I'd predict a ~0.3C performance difference.

Hope that helps to clarify the procedure better.

Feel free to re-use those pump curve-fit equations in future (although they apply to LPM and mH2O units only).

[louie101086]

d5 loud?? i never even heard it make a peep i have an 80mm fan thats louder

[GameGuru]

d5 loud?? i never even heard it make a peep i have an 80mm fan thats louder

louie, thats awesome, I sure am hoping that it's not loud. I just remember reading members complaining about it, that it has a loud whine, hope this is not true. Thanks for the input :)

[elfy]

mine was whisper quiet, only ever had a problem when air was getting into it

[louie101086]

yeah i agree if you have air in your loop its a little loud but thats with any pump you just have to bleed air out for max cooling performance and quiet operation

[Ad1tya]

D5 is not loud at all.
My MCP655, doesn't make any sound @ even with the Speed setting @ 5.
Its virtually silent, you have to put your ear on it, to hear a slight "wheee"....

The D5 is completely under-rated, I infact prefer D5's over DDC's, even over a DDC2 w/ a Modded Top, for the main reason of "Reliability".

[Top Nurse]

http://lh3.google.com/image/mcoffeyXS/RnZrmeO3vjI/AAAAAAAAAXE/XcAWU7gIhL0/s800/DSC_0045.JPG

Nice pic! What kind of reservoirs (the long thin plexi ones) are you using?

[GameGuru]

Those look like the EK Multi Option reservoirs. You can find them here http://www.petrastechshop.com/reservoirs.html