How noisy is the Swiftech MCP350 pump? Please help me! - Page 3

Wang · 08-21-2005, 07:45 PM

Quote:

Originally Posted by stev

Is the DDC loud or not? Seems to be an interesting question from many people here. The DDC from first release has been updated for better results. A new IC is being used, so the noise level on the newer DDC pumps sold should be even quieter. Also, there was a startup issue with a few of the older pumps too.

Hi Stev, thanks for the info.
I've got an early Mcp350/DDC no rpm. no start-up prob. Modded.
I'm curious, how are the pump characteristics changed with the new IC?
As a tech junky, all info is appreciated!

When leak-testing, the DDC was powered independantly by an AT powersupply.
DDC was sooo quite... the low rpm fan from the PS was louder!!

Keep hoses isolated!!! that's what makes noise from an otherwise near silent pump!.

Long Haired Git · 08-21-2005, 08:05 PM

My whoppa project just finished, gone from working over 80 hr weeks to working low to mid thirties. Nice to see the kids and wife again....

stev · 08-22-2005, 08:19 AM

Quote:

Originally Posted by Wang

Hi Stev, thanks for the info.
I've got an early Mcp350/DDC no rpm. no start-up prob. Modded.
I'm curious, how are the pump characteristics changed with the new IC?
As a tech junky, all info is appreciated!

When leak-testing, the DDC was powered independantly by an AT powersupply.
DDC was sooo quite... the low rpm fan from the PS was louder!!

Keep hoses isolated!!! that's what makes noise from an otherwise near silent pump!.

Wang,

The older pumps were taken out of the retail chain and the newer pumps are in the market place now.

Laing is a really great, top notch, company. They know pumps from the biggest to the smallest sizes.

Stev

HammerSandwich · 08-22-2005, 11:02 PM

Very interesting, Stev. Are you able to post a serial number for the IC changeover?

stev · 08-23-2005, 09:26 AM

Quote:

Originally Posted by HammerSandwich

Very interesting, Stev. Are you able to post a serial number for the IC changeover?

Laing managed the change over.

Marci · 08-23-2005, 10:12 AM

Any info on likelihood of addition of RPM monitoring to Laing-D5?? Or passing the hint on?

BillA · 08-23-2005, 11:37 AM

been promised since Jan, delivery a tad slow

Wang · 08-23-2005, 07:01 PM

Quote:

Originally Posted by stev

Wang,
Without going into too much detail,
Stev

Ahhh but it's the detail that I was after!

Thnx for the background info tho.
Would've been of interest to know how the new IC corrected the start-up prob. not that I recall what may have caused it in some units in the 1st place... heh.
OT: I vaguely remember about soldering a wire to the CB to get rpm on the old model?

Wang.

stev · 08-24-2005, 07:35 AM

Wang & H-S,

If you visit the System Cooling forum for this little pump, much detail was given for the extra wire and TACH feedback. Even a voltage speed control diagram for the pump exists there.

BillA · 08-24-2005, 08:50 AM

I second stev's post in its entirety
I have never encountered another pump mfgr so open to accepting that there was a problem nor so prompt to address the issue

Marci · 08-24-2005, 08:59 AM

Quote:

Laing deserves an award for their ability to go beyond the average norm.

And they get that award - that award being, more or less everyone in the know recommending their pumps as one of (if not THE) best available on the market at this time for our purposes... Just wish they'd learn how to make the mounting bracket square so the pump isn't permanently tilting back by some miniscule amount... but that's just me nitpicking...

(can sometimes make it look massively out of place in a good-looking rig...)

08-21-2005, 08:05 PM	#52
Long Haired Git Cooling Savant Join Date: Jan 2003 Location: Sydney, Oz Posts: 336	My whoppa project just finished, gone from working over 80 hr weeks to working low to mid thirties. Nice to see the kids and wife again.... __________________ Long Haired Git "Securing an environment of Windows platforms from abuse - external or internal - is akin to trying to install sprinklers in a fireworks factory where smoking on the job is permitted." (Prof. Gene Spafford) My Rig, in all its glory, can be seen best here AMD XP1600 @ 1530 Mhz \| Soyo Dragon + \| 256 Mb PC2700 DDRAM \| 2 x 40 Gb 7200rpm in Raid-0 \| Maze 2, eheim 1250, dual heater cores! \| Full specifications (PCDB)

08-22-2005, 11:02 PM	#54
HammerSandwich Cooling Savant Join Date: Oct 2003 Location: 15143 Posts: 358	Very interesting, Stev. Are you able to post a serial number for the IC changeover? __________________ www.procooling.com: It's true we are often a bunch of assholes

08-23-2005, 10:12 AM	#56
Marci Cooling Savant Join Date: May 2003 Location: Wakefield, West Yorkshire, UK Posts: 486	Any info on likelihood of addition of RPM monitoring to Laing-D5?? Or passing the hint on? __________________ www.minimotosidecars.org / www.thermochill.com / www.themusiccollective.co.uk

08-24-2005, 07:35 AM	#59
stev Cooling Neophyte Join Date: Feb 2005 Location: niagara falls Posts: 96	Wang & H-S, If you visit the System Cooling forum for this little pump, much detail was given for the extra wire and TACH feedback. Even a voltage speed control diagram for the pump exists there. Last edited by stev; 07-22-2006 at 11:29 PM.

08-23-2005, 11:37 AM	#57
BillA CoolingWorks Tech Guy Formerly "Unregistered" Join Date: Dec 2000 Location: Posts: 2,371.493,106 Posts: 4,440	been promised since Jan, delivery a tad slow

08-24-2005, 08:50 AM	#60
BillA CoolingWorks Tech Guy Formerly "Unregistered" Join Date: Dec 2000 Location: Posts: 2,371.493,106 Posts: 4,440	I second stev's post in its entirety I have never encountered another pump mfgr so open to accepting that there was a problem nor so prompt to address the issue

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