D4 WITH jumper

Senater_Cache · 08-22-2004, 11:09 PM

I recently got my 3/4 barbed D4 from DD, and it HAS the jumper inserted in the back of the motor housing.
I wont have a chance to run it for a bit, and was just wondering if I may have received an old/loud D4.
I know that the muffled D4 (especially the swifty) wont have the jumper....
I had contacted DD and requested the D4 that is slightly less noisy than the original, but not less powerful.
In unfair words of another thread, the "second" revision. I AM making that revision thing up however !! (nikhsub, and BillA, you know what I am talking about with the rev thing)
Does anybody have experience with the 3/4 barb version of the D4?
Do I have the old loud version...I would rather not run it and exchange it if I do.

SenC.

nikhsub1 · 08-22-2004, 11:11 PM

With the jumper ON, the pump needs ~ 10V to start, with the jumper OFF, needs ~ 6v to start, that is the ONLY function of the jumper.

Cathar · 08-22-2004, 11:53 PM

Quote:

Originally Posted by nikhsub1

With the jumper ON, the pump needs ~ 10V to start, with the jumper OFF, needs ~ 6v to start, that is the ONLY function of the jumper.

This seems odd to me. I have the Swiftech MCP650 here, with the jumper, and it starts at 5v with the jumper on.

nikhsub1 · 08-23-2004, 01:49 AM

Quote:

Originally Posted by Cathar

This seems odd to me. I have the Swiftech MCP650 here, with the jumper, and it starts at 5v with the jumper on.

This is exactly what Bill told me... Jumper on needs around 10v to start the pump up, with the jumper off it needs less, around 6v or so. :shrug:

*Edit* few, found the post so ya'll dont think im nuts.
http://www.ocforums.com/showpost.php...3&postcount=71

Cathar · 08-23-2004, 01:59 AM

Quote:

Originally Posted by nikhsub1

This is exactly what Bill told me... Jumper on needs around 10v to start the pump up, with the jumper off it needs less, around 6v or so. :shrug:

*Edit* few, found the post so ya'll dont think im nuts.
http://www.ocforums.com/showpost.php...3&postcount=71

Yeah - I saw that a while back and specifically tried that out when I got the MCP650. The jumper didn't seem to make one iota of difference being on or not.

BillA · 08-23-2004, 09:00 AM

hmm, lost in Hungarian again ?
that info was from Laing, no reason to not believe it - until now ?
I'll investigate

08-22-2004, 11:09 PM	#1
Senater_Cache Cooling Savant Join Date: Jul 2004 Location: F L Posts: 125	D4 WITH jumper I recently got my 3/4 barbed D4 from DD, and it HAS the jumper inserted in the back of the motor housing. I wont have a chance to run it for a bit, and was just wondering if I may have received an old/loud D4. I know that the muffled D4 (especially the swifty) wont have the jumper.... I had contacted DD and requested the D4 that is slightly less noisy than the original, but not less powerful. In unfair words of another thread, the "second" revision. I AM making that revision thing up however !! (nikhsub, and BillA, you know what I am talking about with the rev thing) Does anybody have experience with the 3/4 barb version of the D4? Do I have the old loud version...I would rather not run it and exchange it if I do. SenC.

08-22-2004, 11:11 PM	#2
nikhsub1 c00ling p00n Join Date: Jun 2002 Location: L.A. Posts: 758	With the jumper ON, the pump needs ~ 10V to start, with the jumper OFF, needs ~ 6v to start, that is the ONLY function of the jumper. __________________ :-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:'``':-.,_,.-: E6700 @ 3.65Ghz / P5W DH Deluxe / 2GB 667 TeamGroup / 1900XTX PC Power & Cooling Turbo 510 Deluxe Mountain Mods U2-UFO Cube Storm G5 --> MP-01 --> PA 120.3 --> 2x DDC Ultras in Series --> Custom Clear Res "Artificial intelligence is no match for natural stupidity." 1,223,460+ Ghz Folding@Home aNonForums :-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:

08-23-2004, 09:00 AM	#6
BillA CoolingWorks Tech Guy Formerly "Unregistered" Join Date: Dec 2000 Location: Posts: 2,371.493,106 Posts: 4,440	hmm, lost in Hungarian again ? that info was from Laing, no reason to not believe it - until now ? I'll investigate

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