Laing D5 vs MCP350

[fl0w3n]

Which pump should I use, I have both now, and I also have a XSPC Laing DDC Pump top Res for the 350/355 but I'm not sure if I want to use that or a T-Line still.

My loop will consist of 120.2, 120.3, 120.4, cpu block, mobo block, eventually gpu block(s) too.

[Sparky]

D5 is stronger.

[fl0w3n]

D5 is stronger.

Cool, thanks. I'll sell the XSPC res top and MCP350 then.

[Metal Wolf]

Is it one of the volt modable 350's?

If your not inclined to solder it then ignore this.

[Johnny87au]

d5 >350 but 355 would be a better choice since it has more head with more restricive setups..

[penguins]

I Favor the 355 over the d5 as I was sure I saw some review that it had higher flow rate? Size is also a nice factor of the little banana.

[fl0w3n]

Is it one of the volt modable 350's?

If your not inclined to solder it then ignore this.

No idea, what would that get me?


I Favor the 355 over the d5 as I was sure I saw some review that it had higher flow rate? Size is also a nice factor of the little banana.

Ah yeah, this is true... I don't really want to spend the money on a top for the d5 right now to make it "prettier" and perform a little better, so size does play a big part..

We'll see when the 350 gets here.

[Defoler]

I had issues with the D5s on a very restrictive loop.
Ended up replacing them with the 35X. It made a very big difference on temps and flow rate.

[Jah]

Old 350 can be soldered from 10W to 18W and an 18W DDC gives you more flow in a restrictive loop then a D5.

I'm sure Martin have test results for all of the pumps, google for Martins liquid lab.

[Johnny87au]

Old 350 can be soldered from 10W to 18W and an 18W DDC gives you more flow in a restrictive loop then a D5.

I'm sure Martin have test results for all of the pumps, google for Martins liquid lab.

Yeah the older rev pcbs... Really hard to find now a days..

[fl0w3n]

I'll let you guys know what rev it is when I get it.


Would my loop be considered restrictive? I've got the EK full cover for my 3x classy, which says it has a copper base but coated in nickel with acetal top, will this be fine with my EK HF Supreme and all my radiators?

[theseeker]

It's hard to beat the D5 especially with a good top. I have the EK Rev 2 top and I have no complaints and no cooling issues at all.

[fl0w3n]

Hmm, this is a tough call.

If I use the 350, I already have a XSPC res top for it, so I'm set and done. If I keep the d5, I need to get a top for it (mainly cosmetic reasons, and performance is obviously a benefit :p ) but I'm tight on budget right now needing to buy my case, the 120.4, swap my 2x2 kit with 3x2, and my 580.

Selling the extra loop will make me back some money, which has more value; mcp350 with XSPC res top, or the d5? I'd assume the 350 with top.

[Johnny87au]

Hmm, this is a tough call.

If I use the 350, I already have a XSPC res top for it, so I'm set and done. If I keep the d5, I need to get a top for it (mainly cosmetic reasons, and performance is obviously a benefit :p ) but I'm tight on budget right now needing to buy my case, the 120.4, swap my 2x2 kit with 3x2, and my 580.

Selling the extra loop will make me back some money, which has more value; mcp350 with XSPC res top, or the d5? I'd assume the 350 with top.

The 350 to 355 would be better then a d5 if you can mod it as it has more head and can handle more restrictive loops, imo the 35x is the best pump atm and can easily handle restricive loops alone.. Post a pic of the pcb of the 350..

[Martinm210]

I haven't quantified noise yet, but I see different benefits in each of them. I suspect the D5 series has a better noise ratio, runs cooler, and has a better durability history. The DDC series is smaller, and has a better performance/watt ratio. DDCs may be stronger in single pumps setups, but under series...the D5s higher flow tuning may turn out to be better.

Both really good pumps, you can't go wrong either way. I've had both running in my daily rig for two years now and still don't really have a strong preference either way, if anything I'm personally leaning toward noise being a priority.

[xaruum]

From what I have read ( I don't have links right now - google is your friend )

If using a pc psu, then stick to the 35x it is designed for 12v

If using a 24v dc psu, then use D5

Early reviews showed that on 12v the 350/355/35x had better performance than the D5, and that when using a 24v dc supply that the D5 was designed for, the D5 blew away the 35x

[Church]

xaruum: don't mistaken generic D5s with D5 Strong variety. Generic D5 had only slight gains with voltages above 12V, far from blowing away 35X.

[nirvana_1911]

What about the Laing D5 Vario's? (in comparison to generic D5 and Koolance D5 Strong)


xaruum: don't mistaken generic D5s with D5 Strong variety. Generic D5 had only slight gains with voltages above 12V, far from blowing away 35X.

[thegcpu]

I haven't quantified noise yet, but I see different benefits in each of them. I suspect the D5 series has a better noise ratio, runs cooler, and has a better durability history. The DDC series is smaller, and has a better performance/watt ratio. DDCs may be stronger in single pumps setups, but under series...the D5s higher flow tuning may turn out to be better.

Both really good pumps, you can't go wrong either way. I've had both running in my daily rig for two years now and still don't really have a strong preference either way, if anything I'm personally leaning toward noise being a priority.

+1 Martin
I have all three running in systems 350,355 and a D5, hands down D5 is the quietest.

[Aaronharmon]

I've had both, I perfer the D5

[fl0w3n]

The 350 to 355 would be better then a d5 if you can mod it as it has more head and can handle more restrictive loops, imo the 35x is the best pump atm and can easily handle restricive loops alone.. Post a pic of the pcb of the 350..

I'll be receiving the pump this week.


I haven't quantified noise yet, but I see different benefits in each of them. I suspect the D5 series has a better noise ratio, runs cooler, and has a better durability history. The DDC series is smaller, and has a better performance/watt ratio. DDCs may be stronger in single pumps setups, but under series...the D5s higher flow tuning may turn out to be better.

Both really good pumps, you can't go wrong either way. I've had both running in my daily rig for two years now and still don't really have a strong preference either way, if anything I'm personally leaning toward noise being a priority.
+1 Martin
I have all three running in systems 350,355 and a D5, hands down D5 is the quietest.


Interesting analysis. Well, considering I'm going with 1,080mm x 2 of surface area for my radiators (don't know if that makes sense or not lol, equivalent of 9 120mm rads) for the main purpose of silent operation with no sacrifice to performance then it wouldn't make much sense to pick the louder pump.

But, I don't like the size of the d5 too much either, but I guess I'll just get a EK top and "dress up kit" for it so it's more satisfactory to me.

[k0rnh0li0]

i would say the d5 or the variant 655. the 35x w/ the top is top notch ATM so i hear while martin is still doing tests on the 450's

[RCG_Bex]

I'm curious about this as well... 2x DDC in series or 2x D5's in series. Noise doesn't bother me (I've got 20x Kaze 3000's :P)

I'm normally a D5 lover but with 4x (possibly 5x) radiators, cpu block, mobo block and 2x gpu blocks it may be better for me to switch to a higher head pressure...

[Church]

:poke: Bex .. Iwaki's calling you :)
It will be silent relative to UK3k :D

[Johnny87au]

I'm curious about this as well... 2x DDC in series or 2x D5's in series. Noise doesn't bother me (I've got 20x Kaze 3000's :P)

I'm normally a D5 lover but with 4x (possibly 5x) radiators, cpu block, mobo block and 2x gpu blocks it may be better for me to switch to a higher head pressure...

2x3.25 easily IMO, the flow curve practically increases by up to 50%..

[Vinas]

:poke: Bex .. Iwaki's calling you :)
It will be silent relative to UK3k :D

Yeah but get ready for the heat dump with iwaki. I'm switching from iwaki to a dual D5 setup because my iwaki pump runs at about 35c with heatsinks and a 80mm dedicated sanace fan @ 1600 rpm. The good news is that you can't hear an iwaki over high speed fans (using 4000 rpm deltas here).

[mBrane]

... The good news is that you can't hear an iwaki over high speed fans (using 4000 rpm deltas here).

Can't hear them over Deltas. <snicker> Jeez, *I* can hear your Deltas over here! :rofl:

[NaeKuh]

i favor the PMP-400 which is a DDC-3.25.
I favor that pump because u can open it, clean it up, add an aftermarket top, and NOT VOID your warrenty.

Which isnt the case for swiftech labeled pumps.

:P

if its down to a D5 vs a 350, id really need to see what u have in your loop.
The 350 will be quieter, and dump less heat back into the loop.

The D5... meh... lets say unless i had them in bay res (which i do, 2 in fact)
i would never touch a D5 again.

[theseeker]

i favor the PMP-400 which is a DDC-3.25.
I favor that pump because u can open it, clean it up, add an aftermarket top, and NOT VOID your warrenty.

Which isnt the case for swiftech labeled pumps.

:P

if its down to a D5 vs a 350, id really need to see what u have in your loop.
The 350 will be quieter, and dump less heat back into the loop.

The D5... meh... lets say unless i had them in bay res (which i do, 2 in fact)
i would never touch a D5 again.

What is your issue with D5's?

[NaeKuh]

What is your issue with D5's?

they dump back a lot more heat into the loop then a DDC, so if your loop is something of small capacity, that number can add up.

Not to mention, the options for it is still quite limited to a DDC.
And the footprint required for a D5 is a lot greater then a DDC.

Lastly im a D5 hater... but yet im running 2 in my current system, so i really am a hypocrite, but eh, im chasing after a deity no?

:rofl:

[theseeker]

they dump back a lot more heat into the loop then a DDC, so if your loop is something of small capacity, that number can add up.

Not to mention, the options for it is still quite limited to a DDC.
And the footprint required for a D5 is a lot greater then a DDC.

Lastly im a D5 hater... but yet im running 2 in my current system, so i really am a hypocrite, but eh, im chasing after a deity no?

:rofl:

Why the hate? D5's last much longer than the DDC's and the D5's are relatively quiet, especially on 3.
Chase some scotch! It is much more fun.:D

[Alexandr0s]

Why the hate? D5's last much longer than the DDC's and the D5's are relatively quiet, especially on 3.
Chase some scotch! It is much more fun.:D

It's true that they're more silent, but I believe this is mainly because of the different settings. If I remember correctly, in terms of dBA there was almost no difference between the MCP350 and the D5 when both ran @12V (though Martin probably knows this better :p:).
But yeah, the different settings on the D5 are a big plus, which is why I would also recommend the MCP35X, which supports PWM ^^.

[Sparky]

I have both a DDC and a D5 and I wouldn't call one louder than the other. Just each has a different tone to it. Depending on mounting (both of mine were soft mounted) and case design/resonance I could see how one could appear louder than the other, but I think in reality they are about the same noise level in of themselves.

As far as reliability, well, I've had both a DDC fail after 9 months and a D5 that was dead straight out of the box, so from my limited experience there they are about equal :p: