DD D-5 or 50z ?

[Vice]

Im not sure which pump to get and i keep hearing good things about both. I have a trip rad which is going to be mounted at the upper part of my case, storm for cpu, and maze4 for gpu. Which would be better ? pros and cons ? im looking for silent or near silent operation

[eXa]

what about ddc+? with top inlet...

[WeStSiDePLaYa]

id go for 50z.

lower heat dump, quieter if thats your thing, bit better specs.

but lower mtbf.

[Vice]

mtbf?

[Reinvented]

Mean-time before failure....how long it'll run. D5 is rated at ~5 years (50,000 hrs.)

[JoeBar]

what about ddc+? with top inlet...
One more vote! :up:

[Vice]

while the ddc is a good pump, i need votes for either dd d-5 or 50z, remember i have a triple radiator, cpu, and gpu block in the loop, so theres a lot of area to cover

[JoeBar]

It's better than these two... ;)
Have in mind that we're talking about DDC +/Ultra.
However if u still need vote for these. I would go for D5 cause i hear mixed experiences from 50z users.

[eXa]

i also hear mixed experiences with the d5!
d5 is the most noisy and dumps the most heat into the water. but some people has had noisy 50z too!

ddc+ is better than theese 2

[creidiki]

yeah, the ddc+ has higher head than the d5... problem is getting a hold of the top & g1/4 barbs if youre in the us.

[safan80]

another for the 50Z here.

[specialblend218]

D5 is what I would get.

[Amplified]

Didn't want to make a new thread; so i'll ask here. Are the DD D5 and the Swiftech MCP655 similar pumps? They look exactly the same and have the same MTBF (50,000 hrs).

[-aDaM^]

D5 > 50z pft.... :clap:

[specialblend218]

Didn't want to make a new thread; so i'll ask here. Are the DD D5 and the Swiftech MCP655 similar pumps? They look exactly the same and have the same MTBF (50,000 hrs).


Same pump by Laing.

[Amplified]

Same pump by Laing.

Awesome, thank you :D

[eXa]

and ddc is the same as mcp350(ddc+\mcp355)

[ReD.SkY]

i like the 50Z, but i would go with the D5... a D5 will be better for your setup, even tho i have 2 x 50Z's and less heat dump than 1 x D5

[WeStSiDePLaYa]

D5 > 50z pft.... :clap:


ummm... where do you get this from?

50z
-10.5feet head
-9watt heat dump
-much quieter
-uses less than half the power of D5

D5
-10feet head
-24watt heat dump
-50 000 mtbf
-louder
-sucks more amps.

so which pump is really better?

[lowfat]

I've never owned a 50z however i've had two D5s and many of my friends also have them. It seems very hit and miss on how loud they are. My first one sounded horrible, quite loud. New one is nice and quiet. Same thing happened to a friend of mine.

[ReD.SkY]

^^ if they cant keep them consistent, then that show how much effort they put into their products.

50Z = MCP600 = Panworld

Panworld= Iwaki

therefore... 50Z is like a mini iwaki lol

[Bloody_Sorcerer]

overvolted 50z takes the pie ;)
D5 can't overvolt for crap, 50z can just keep going and going until it decouples.
but i'd still say DDC+/ultra... but where do you get those in the states? I'm contemplating (not particularly seriously) swapping one for my iwaki 20RLZT, which is such a massive beast and poorly vibration damped that its getting on my nerves.

[nealh]

I cant find the audio file right now but I feel the 50z has higher pitch whine than the D5....which to my ears is worse
Here ya go..

http://www.cooling-masters.com/articles-33-14.html

D5 is also adjustable and I think the recommendation from many is if you are using a small loop and single maybe dual rad..50z

Dual and triple rad ...D5

[ReD.SkY]

D5 is known to have a higher pitched frequency for the noise, mabe its your speakers?

[Ouchy]

ummm... where do you get this from?

50z
-much quieter

so which pump is really better?

Ummm... where did YOU get THIS from?

Do you have any scientific data showing that the 50z is quieter than the D5? Last I saw, the only public review data showing credible noise comparisons put the D5 as much quieter than the 50z...

I guess that means the D5 is quieter. Hence, if you have a decent sized rad, I'd go with the D5. He has a trip rad, and is looking for silence; between these two pumps D5 is better, no question.

[WeStSiDePLaYa]

Ummm... where did YOU get THIS from?

Do you have any scientific data showing that the 50z is quieter than the D5? Last I saw, the only public review data showing credible noise comparisons put the D5 as much quieter than the 50z...

I guess that means the D5 is quieter. Hence, if you have a decent sized rad, I'd go with the D5. He has a trip rad, and is looking for silence; between these two pumps D5 is better, no question.



its common knowledge the 50z is quieter than the D5. why do you think there was so much complaining when swiffy moved the the mcp650/655 from the mcp600? people complained about the noise.

either way, why have a less powerfull, and more power sucking noisier pump when you dont have to?

with the D5 it sucks over 1 more amp from the 12v rail compared to 50z. which is important when running many hdds or high end overclocked chips and gfx cards.

and like its been said. overvolt the 50z to 13v and the D5 has nothing on it.

[ReD.SkY]

true, an overvolted 50Z, on Cathar's tests outperforms all other pump iirc

[Ouchy]

It was common knowledge that the world was flat several hundred years ago.

Spare me your "common knowledge." It's not just you either. I've found that lots of people on these types of forums post information labeled as "common knowledge" without scientific data. We should laugh these people out of the community. Granted, this is a niche market and not many people will have the time or money to perform proper testing, but we deserve something better than mere anecdotal accounts and specific user testing.

To comment on your second point you'd have a more power hungry and weaker pump because it's quieter. First post states that the user is looking for silent or near silent operation. Granted, silence for one person can be a huge racket for another; it's obviously subjective. However, in this case I'd feel good about recommending a weaker pump for a quieter one. Heat dump with a triple rad? I wouldn’t consider it as a major factor.

Power requirements are also not a big problem. The majority of people on this board will have good PSU's. Why would you be looking at a 75 USD priced pump, and top end blocks totaling over 100 USD if you couldn't afford a good PSU? It doesn't make any sense.

Finally, I agree that an over-volted 50z beats a D5. It beats it in performance, not in silence. I’d also agree that there are quieter pumps, but between these two pumps in this situation, I’d take the D5.

[qdemn7]

I cant find the audio file right now but I feel the 50z has higher pitch whine than the D5....which to my ears is worse
Here ya go.. http://www.cooling-masters.com/articles-33-0.html
Damn I wish that Aquaxtreme 150Z-DC12 was available right now. :slobber:

Sent Cooltechnica an email this AM, haven't heard back yet.

[nealh]

D5 is known to have a higher pitched frequency for the noise, mabe its your speakers?

ok..but to my ears the whine on the 50z was worse and more annoying in the sound samples than the D5

I will say the D5 is very quiet and not audible in my P180

[Zeus]

I like my 50Z, i can't hear it at all, it's the way you mount it i guess.

[Zenjirou]

http://www.systemcooling.com/images/reviews/LiquidCooling/Swiftech_MCP655/image17big.gif

Take a look at the Green and Red Lines. Notice at above 10 feet of restriciton, the 50z takes the lead. The D5 has higher flow rate when there is low restriction, as shown on the graph.


On this forum, people tend to favor the 50z. Many people say its quieter and can beat anything when overvolted. Mind you that D5 can also be overvolted (although with added heat dump).
But on for example, OCforums, in their pump guide they favor the D5 stating there is no reason to get the 50z over the D5

SystemCooling I believe also mentioned that 50z had some reliability problems, as did the mcp350. In a given batch of pumps, there are likely more failures of 50z than D5's, since D5 is more power hungry, heavy duty pump.

In any case my D5 is dead silent with an mp01 and mp05

[eXa]

man. dont be so aggressive Ouchy!

[ReD.SkY]

I like my 50Z, i can't hear it at all, it's the way you mount it i guess.

i need to mumify both of mine :(

[el rolio]

uhm ddc+ vote here again. i just bought my plexi top from one place, pump from DD and barbs from eddy. to replace a d5 in a loop with a storm, 2 maze4's and a pa triple rad. holler.

[Vice]

Silence is a pretty big thing for me, and i like that u can set the level on the d5, so for whatever i am doing at the time, i can customize it, but i dont want the large heat dump to affect my temps. but with a bipIII rad would that be a problem? im using a storm and maze4 so my setup is pretty restrictive

[creidiki]

nah its fine with the bip III, though if you want silence you should get a DDC+...

[MaxxxRacer]

But on for example, OCforums, in their pump guide they favor the D5 stating there is no reason to get the 50z over the D5

Well then it is clear they are not fully informed. While I do not think the 50Z is the best choice for all applications, it certainly is the better choice over the D5 in a number of situations.

[gocchin]

I found performance to be quite similar between the D5 and 50z (I've used both extensively in the last month, switching back and forth between the two). The D5 may run around 1 degree warmer at idle due to the higher heat dump. Load temps top out close to the same.

As for sound it seems different samples of the same model pump produce different amounts of sound. In my case the 50Z was quite a bit louder than my D5 which made me in the end go with the D5 since I was going for silence... this is with both pumps sitting on 1 inch thick neoprene and using NO bolts.

Besides running these pumps with my PA160, I also ran them with a Thermochill HE120.3 and both performed admirably with an MP-05 Pro LE and MP-01.

[Reinvented]

I dunno what's wrong with your guys' D5 pump, but mine is silent...and the only way you can tell if it's putting out sound is if you put your ear next to it. I'm assuming that you guys accidently ran it dry or something at one point to get it to produce that high pitched noise/whine, etc.

[el rolio]

actually, it does make some sound,. the ddc is quieter


FOUND IT! have a listen folks and you will hear what my machine sounds like!!!

http://www.cooling-masters.com/images/articles/laing2/images/mp3/d5.mp3

the first of the noises is with the pot at 5 where i believe i have to run it to get the system to perform. basically i can hear that + a lil fan "whoosh" noise and what must obviously be some vibration noise but not much.... cuz the main TONE of the sound is that of the pump, but that loud ass whirrrr is what is driving me mad and as we can see from the webpage
http://www.cooling-masters.com/articles-33-14.html
it is almost 38db!!! killing me! every fan in my case is at about 5v, except for the psu fans which are on a fan controllor but already slow and at about 7v like i said, all with rubberr grommits or washers between screw and metal.

now the ddc: http://www.cooling-masters.com/images/articles/laing2/images/mp3/ddc.mp3
more water whooosh, less whirr/hummm

:D

[jaguarking11]

IMHO the d5 is a better pump.

There are a fiew reasons for that.

Firslty I can undervolt the d5 if I feel I need more silence.
The d5 is a better balanced pump.

The mcp600 rev2 I have is noisy and cant be undervolted.

If you guys are worried about the d5's heat dump, then just position it in the front of the case where the intake is. It will make it run at room temp. Ive done it and it works a treat.

All in all the d5 is a higher precision pump vs the 50Z

Also FYI swiftech droped the 50z because of the high number of rma's. The rev1 was completly unreliable and would die within the first 6 months.

[Zenjirou]

Also FYI swiftech droped the 50z because of the high number of rma's. The rev1 was completly unreliable and would die within the first 6 months.

main reason I got D5 over 50z. Both are too similar in performance and noise, but its little thing like this which convince me to use D5 over 50z.
(although honestly, doubt any of newer 50z's will fail)

[jaguarking11]

main reason I got D5 over 50z. Both are too similar in performance and noise, but its little thing like this which convince me to use D5 over 50z.
(although honestly, doubt any of newer 50z's will fail)

The reason I picked up a mcp600 was simple. It was extreemly cheep. I bought myne for 30bux and I picked it up so no shipping

[Vice]

Well i decided on a D-5. Ill post my temps and some pics later this week

[JoeBar]

Keep us updated.

[Drunner611]

Don't mean to steal the thread, but from what I have gathered most people have said that the Laing DDC is better? Would this pump suffice for a triple rad, cpu, and 2xgpu wc loop?

[krylon]

I have a D5 pump and I couldn't be happier. There is basically no vibrational noise, only a very soft high pitched whine. I have a steel enclosure and once I close the door on it, I can't hear the D5 at full speed.

[JoeBar]

Don't mean to steal the thread, but from what I have gathered most people have said that the Laing DDC is better? Would this pump suffice for a triple rad, cpu, and 2xgpu wc loop?
It surely will m8! I have one in my setup. :)

[Drunner611]

It surely will m8! I have one in my setup. :)
Thanks, one more component to order when Conroe arrives :)

[el rolio]

Don't mean to steal the thread, but from what I have gathered most people have said that the Laing DDC is better? Would this pump suffice for a triple rad, cpu, and 2xgpu wc loop?

its about to do it for me. i can let you know how it fares aganst the d5 thats currently powering it.

but like they say. when you have high restriction, its HEAD that matters, low restriction, the flow of the pump will matter more then. i this case the modded DDC is gonna be better for my triple rad, storm and 2x gpu.

or so we presume

[JoeBar]

Out of these three pumps it will be... ;)

[creidiki]

We still need to find some sucker to test the new D4 and D5 Vario ^_^

[JoeBar]

Indeed that would be some really usefull data. However, in my opinion, the numbers (basically the flow rate) on the new D5 vario are a bit "tweaked" by laing... :p:

[creidiki]

Or alphacool... but yeah.

At least, running a wattmeter on it to see its powerdraw viz. "old" D5, because lets be frank, if its much higher its gonna be too high for all but huge huge huge rads.

I mean, 3.7m, thats basically current D5 head, but 23W current draw = 19-20W heat dump, thats Iwaki MD-20 levels of heat dump, BUT: the MD-20 has up to 22ft head to the D5s 12-13, and it costs the same or LESS (!!!). 99.9€ vs what it is, 104$ for an MD-20?

[JoeBar]

Out of these two i would prefer the iwaki (not sure about the noise level though).
For less than the D5 Vario's price u get a DDC Ultra with plexi and have more head, with very close flow numbers and half heat dump... :p:

[creidiki]

Well, the nominal power draw of the D5 Vario is = "old" D5, and you DO get about 2ft more head... but i agree, for the sort of loops we do there DDC-Ultra is probably superior.

[Brandon_Tyler]

So, heres my question is the Ultra just the 18 watt version of DDC? I'm jsut think my Iwaki is going to be to loud for my needs.

- Brandon

[creidiki]

Yes.