DDC TOP poll: what TOP do you use with your Blue impeller DDC

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09-26-2010, 10:07 AM
millertime359

Quote:

Originally Posted by churchy

Let's wait for more results. Pitty that one cannot write down ammount in voting (eg. for those that use dual tops or have several builds).

Maybe OP can edit the first post and keep another tally. :)
09-26-2010, 11:18 AM
Blueking

I have both xspc and EK top, first I ordered xspc dual ddc top... used some time to finish pump mod about to get finished i noticed a few microfractures in acryl , had read around on XS that xspc had a few issues decided to go EK dual top V2.

(Loop are reservoir (400 mm) -> EK dual ddc top with multioption reservoir (60 mm) -> radiator -> qdc -> cpu -> sb/nb chipset -> mosfets -> mips ramcooler -> qdc -> AC flowmeter -> radiator -> qdc -> 2 x 5970 in paralell -> qdc -> mips ramcooler (cools 2 x mcubed miniNG) -> chipset cooler (cools mcubed BigNG) -> back to reservoir

waterflow 291 liter/hour)
09-26-2010, 11:54 AM
justin.kerr

I run 8 DDC's with XSPC tops, most are over year old, not a failure yet... crosses fingers. had one D5 go bad, that is it for pump failures, that were normal deaths, not due to me over/undervolting, or modding.. :p:
09-26-2010, 12:52 PM
zanzabar

Quote:

Originally Posted by SoulsCollective

Current thinking is that DDCs using XSPC tops are reaching higher RPMs than those running EK/Petra/etc, causing higher power draw and early pump death. Those running higher restriction loops are safe, as the pump has more resistance to work against and therefore cannot reach such high impeller speeds and therefore cannot draw as much power. Non-XSPC tops are (it's thought) designed with a little more tolerance around the impeller, which results in slightly lower performance but slightly safer operation.

whats the rpm on an xspc top, my ek g3/8 runs 4655
09-26-2010, 01:37 PM
Slowb00st

Quote:

Originally Posted by zanzabar

whats the rpm on an xspc top, my ek g3/8 runs 4655

my xspc res top runs around 4440-4470rpms min 4411rpms max 4500rpms , that even only running on cpu only loop with Apogee XT and then with two EKs for 5850 Asus DirectCU cards and the cpu...
09-26-2010, 01:37 PM
Blueking

My EK dual ddc V2 pump 1 4700-4800 rpm pump 2 5000-5100 rpm
temps on pump internal hits 46-47 Celsius
09-26-2010, 01:56 PM
Martinm210

Anyone else having trouble adding up the percentages to 100%..:D
I spy vBulletin bug..
09-26-2010, 02:34 PM
CedricFP

Quote:

Originally Posted by SoulsCollective

Current thinking is that DDCs using XSPC tops are reaching higher RPMs than those running EK/Petra/etc, causing higher power draw and early pump death. Those running higher restriction loops are safe, as the pump has more resistance to work against and therefore cannot reach such high impeller speeds and therefore cannot draw as much power. Non-XSPC tops are (it's thought) designed with a little more tolerance around the impeller, which results in slightly lower performance but slightly safer operation.

I thought the EK tops outperformed the XSPC. Would that not indicate that EK tops allow for faster RPM of impeller, logically?
09-26-2010, 03:03 PM
justin.kerr

Quote:

Originally Posted by Martinm210

Anyone else having trouble adding up the percentages to 100%..:D
I spy vBulletin bug..

130% of us responded, so seams correct.. :rofl:
09-26-2010, 03:22 PM
Monkey Puzzled

Quote:

Originally Posted by CedricFP

I thought the EK tops outperformed the XSPC. Would that not indicate that EK tops allow for faster RPM of impeller, logically?

Do you have links to the tests of the tops? I have an EK V2 and an XSPC top (that I'm currently using) - is it worth swapping over? I also have an alphacool top modded to have a 10-11mm top inlet, but it probably still performs worse than the others.
09-26-2010, 03:30 PM
dengyong

Quote:

Originally Posted by dengyong

I've got a 355 blue impeller with an EK v2 that's starting to make noise.

Quoting myself ^ ... I just checked the current on this pump and it's only pulling 1.28A at 12v.
Since it's still within spec, I'm going to leave it in the loop until it gets worse.
Loop = pump to PA120.3 to PA120.3 to swiftech GTZ to ported AquagraFX fc block to iandh res using 30 inches total, of 7/16 tubing.
09-26-2010, 03:51 PM
Sparky

Quote:

Originally Posted by Martinm210

Anyone else having trouble adding up the percentages to 100%..:D
I spy vBulletin bug..

128.57% total, lol :D
09-26-2010, 03:59 PM
millertime359

Quote:

Originally Posted by Martinm210

Anyone else having trouble adding up the percentages to 100%..:D
I spy vBulletin bug..

Yea, I was trying to figure that out too. :rofl::rofl:
09-26-2010, 04:15 PM
leo_bsb

Quote:

Originally Posted by millertime359

Maybe OP can edit the first post and keep another tally. :)

i tried, I can't edit the poll options.

I would be better to write how many pumps you have.

Regarding the stock pump: it does not matter, since you can call warranty on a stock not moded pump fail.

Regarding the XSPC Res/Top, they look similar but since it is the most popular res/top solution I want to know if they have the failure rate of the top only model.

Remember you can vote in more than one top.
09-27-2010, 04:16 AM
Alexandr0s

Quote:

Originally Posted by Martinm210

Anyone else having trouble adding up the percentages to 100%..:D
I spy vBulletin bug..

Martinm, read the poll, it's multiple choice, meaning they don't add up to 100%, because I believe it only counts the amount of people voting, not the amount of votes made.
09-27-2010, 06:12 AM
bundymania

Zern P12 - quietest top that i know, followed by Koolance PMP400 (old metal version) or the Phobya Metal Top

EK and Watercool Tops are much louder !

http://www.youtube.com/watch?v=Z541Ri87TMw

http://www.youtube.com/watch?v=HX3wynmQxKk

http://www.youtube.com/watch?v=v4os7Kv2lNg

http://www.youtube.com/watch?v=dPLsZqarZUo
09-27-2010, 06:41 AM
dengyong

Quote:

Originally Posted by bundymania

Zern P12 - quietest top that i know, followed by Koolance PMP400 (old metal version) or the Phobya Metal Top

EK and Watercool Tops are much louder !

http://www.youtube.com/watch?v=Z541Ri87TMw

http://www.youtube.com/watch?v=HX3wynmQxKk

http://www.youtube.com/watch?v=v4os7Kv2lNg

http://www.youtube.com/watch?v=dPLsZqarZUo

Are these tests done with the same loop ?
09-27-2010, 06:46 AM
bundymania

Yes, i made a review last year

http://www.xtremesystems.org/forums/...d.php?t=258969

The new PMP-400 is a bit louder than the old PMP400 Metal top :( So, the zern top is the quietest atm
09-27-2010, 07:03 AM
dengyong

Quote:

Originally Posted by bundymania

Yes, i made a review last year

http://www.xtremesystems.org/forums/...d.php?t=258969

The new PMP-400 is a bit louder than the old PMP400 Metal top :( So, the zern top is the quietest atm

Do you know of a US distributor for the Zern P12 ?
09-27-2010, 07:06 AM
bundymania

No :( Here is a contact formular, if you want to ask them:

https://www.zern.at/zern_shop/de/cms/7/kontakt.html
09-27-2010, 07:35 AM
dengyong

Quote:

Originally Posted by bundymania

No :( Here is a contact formular, if you want to ask them:

https://www.zern.at/zern_shop/de/cms/7/kontakt.html

Thank you.
09-27-2010, 08:48 AM
Waterlogged

Quote:

Originally Posted by bundymania

Zern P12 - quietest top that i know, followed by Koolance PMP400 (old metal version) or the Phobya Metal Top

EK and Watercool Tops are much louder !

http://www.youtube.com/watch?v=Z541Ri87TMw

http://www.youtube.com/watch?v=HX3wynmQxKk

http://www.youtube.com/watch?v=v4os7Kv2lNg

http://www.youtube.com/watch?v=dPLsZqarZUo

Are these tops you actually use or just tested?
09-27-2010, 09:03 AM
bundymania

Both - I got 8 PC´s
09-27-2010, 09:07 AM
Waterlogged

Quote:

Originally Posted by bundymania

Both - I got 8 PC´s

OK, just wanted to make sure as this is for tops used/actually in use in a system loop.:up:
09-27-2010, 09:09 AM
dengyong

Quote:

Originally Posted by Waterlogged

Are these tops you actually use or just tested?

Do you think the results may be different in daily use ? I'm looking for quiet tops. Sorry for the off topic.

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