Run water pump off of motherboard fan header?

[thilanliyan]

The DTek DB-1 pump I have has a motherboard header plug as standard to power it. Should I run it off the motherboard or hook it up directly to a molex connector so it gets 12v?

Can the motherboard support the amps that the pump draws?

 

[MichaelD]

I ran into this question pretty recently; I had some 120mm fans that draw .80 amp/9.6 watts each. The general consensus was that it would be a bad idea to run them off the MB headers. Motherboard headers typically are designed for a 10-watt or so max load. There's no way your pump draws .8 amp or lower, especially at startup.

Not much info there but here's that thread.

Good luck.

 

[WoodButcher]

I have 2 of those, nice, quiet little pump. As far as pumps go they are low amp but I still would not run them off the mobo.

 

[wwswimming]

pumps (electric motors) have a tendency to generate inductive spikes.
i would want my motherboard shielded from that. unless an experienced WC'er
says otherwise.

 

[Zepper]

I wouldn't hook more than 0.5A draw to a fan header unless your mobo mfr. specifically states that higher is OK.

.bh.

 

[Comdrpopnfresh]

I wouldn't run them off of the motherboard. Regardless of electrical drawing concerns, you have no redudency... Most everything I've read or seen shows that exotic cooling (anything other than air) should be run independent of the system components. Rare situations could crop up and lead to a loss of circulation, and a fried component.

 

[aigomorla]

dB-1 Compact 12v Pump

Dimensions 2.3" x 1.8" x 2.4"
Voltage DC 12V
Voltage Range DC 8V ~ DC 13.2V
Starting Voltage DC 8V
Amp 0.5

Technically it should draw less then power then this fan:
http://www.jab-tech.com/Scythe...-Fan-High-pr-3940.html

However, i would get a converter and run it off molex.


This better be for your secondary loop, and not primary. If its primary, that cpu better be something small, and not big.

 

[thilanliyan]

Thanks all for the replies. I hooked it up with the Molex. It's running with a 2x120 Black ICE GT Stealth and a Fuzion V1 (with washer) on my Phenom (I'm not OCing like crazy...only at 1.35v).

My temps stay around 40C at idle and get to about 55-60C at load after a while in a room that's about 20-23C. I know this isn't that great but I was getting crappy temps with my previous E6400 as well...dunno why...the block is definitely mounted properly. I'll post pics of my setup later.

 

[aigomorla]

lol

its called..

db-1 on a poor stealth + d-tek with washer.

pull the washer.

get rid of the stealth to something else less restrictive, and it should balance out.

Or replace the pump, or get another one and serial them.

 

[WoodButcher]

Originally posted by: aigomorla
lol

its called..

db-1 on a poor stealth + d-tek with washer.

pull the washer.

get rid of the stealth to something else less restrictive, and it should balance out.

Or replace the pump, or get another one and serial them.

Absolutely!!!!

I ran 2 of these in a loop with a d-Tek v1 (no washers) a d-tek vid block and two swiftech rads, 120x1 and 120x2. My quad and 7950gt were the heaters, at load I was getting 44- 45C so these pumps are capable of running a good loop with the right setup.

 

[thilanliyan]

Well...I don't have much space to work with so a larger rad is out of the question (the GTS is fairly thin) and placing a second pump would be a problem too. I'm also aiming for quietness and I've read this pump is one the quietest. Oh and I was getting similar temps (with 1/2inch tubing) with my E6400 (@1.35v and 3.2GHz) with the same setup but without the washer...so getting the same temps on a Phenom is not too bad.

What small, quiet pumps do you guys recommend? I don't mind changing the DB-1 to something else if it has a similar footprint.

Is the DDC(is that what it's called) small? Which version is the better one? Is it still available?

EDIT: What about the Danger Den CPX-PRO
review of CPX-Pro

It's bigger than the Swiftech MCP355 (is this the same as the DDC?) but is about $20 cheaper. If I got the MCP355 I'd have to get a top for it due to the way my tubing is so that's another $20-$30 so the CPX-Pro would be ~$50 cheaper.

 

[WoodButcher]

I know nothing of that pump but you can take Martins opinion for gospel. While he may seem to favor some items his testing is unbiased and fair.

 

[thilanliyan]

Good to hear...I'll probably pick up that pump then.

 

[aigomorla]

Originally posted by: thilan29
Good to hear...I'll probably pick up that pump then.

ask gillbot about that pump first.

his brother bought one, and if i remember its kinda big. He was actually suprised at its size.

A DDC3.2 + XSPC top would be ideal.

you cant chain the pumps up like this?

http://i125.photobucket.com/al...aigomorla/IMG_0006.jpg

And i know your gonna ask "whats that .999 fine block" is, so i'll tell ya.
Its Silver, and its my biocide / antivortex module.

 

[WoodButcher]

^^^ +1 check the size , Martin's review said 4+ inches.

 

[thilanliyan]

That's with the barbs I think...On the DD website it says "with barbs 103x103x54mm". 103mm is about 4 inches and is just slightly bigger than the db-1 with barbs

The CPX-Pro will be about $50 cheaper though...which is why I'm leaning towards that. Would adding another DB-1 in series be better than just going for the more powerful pump? Another DB-1 will cost roughly the same as the CPX-pro.

 

[MichaelD]

Originally posted by: aigomorla

Originally posted by: thilan29
Good to hear...I'll probably pick up that pump then.

ask gillbot about that pump first.

his brother bought one, and if i remember its kinda big. He was actually suprised at its size.

A DDC3.2 + XSPC top would be ideal.

you cant chain the pumps up like this?

http://i125.photobucket.com/al...aigomorla/IMG_0006.jpg

And i know your gonna ask "whats that .999 fine block" is, so i'll tell ya.
Its Silver, and its my biocide / antivortex module.

Do you actually have a piece of silver billet inside your pump? To prevent corrosion, I'd imagine, right?

Wow...I thought my rigs were expensive. :Q

 

[aigomorla]

Originally posted by: MichaelD


Do you actually have a piece of silver billet inside your pump? To prevent corrosion, I'd imagine, right?

Wow...I thought my rigs were expensive. :Q

biocide..

And yeah, gillbot says, its called going aigo style. :X

If you can fit the pro, get the pro, however i still recomend you just get this guy, and use the DB-1 on a future gpu loop in the future.

As of this moment its still my favorate little pump.

http://i125.photobucket.com/al...aigomorla/IMG_0075.jpg

I took some messurements for ya:
http://i125.photobucket.com/al...aigomorla/IMG_0077.jpg

http://i125.photobucket.com/al...aigomorla/IMG_0078.jpg


You could always mount the pump on your rear 120 exhaust like this:

http://i125.photobucket.com/al...aigomorla/IMG_0073.jpg
http://i125.photobucket.com/al...aigomorla/IMG_0074.jpg

Thats called a UN Design bracket by Dave, a great guy, and i recomend it if you dont want to go ghetto on pump mounting.

You see now why everyone says h2o is dangerous in the addictive aspect. Once you know what toys are available, your eyes light up really big, and you have to wipe your drool.

 

[thilanliyan]

Thanks for all your help Aigo...I'd prefer to get one of those pumps...it's just a bit expensive. And it's a bit noisy isn't it? I really like that it's small though...hmmm...decisions decisions.

I wanted to ask, the Swiftech MCP355...is that the same as the DDC 3.1? 3.2??

 

[aigomorla]

Originally posted by: thilan29
Thanks for all your help Aigo...I'd prefer to get one of those pumps...it's just a bit expensive. And it's a bit noisy isn't it? I really like that it's small though...hmmm...decisions decisions.

I wanted to ask, the Swiftech MCP355...is that the same as the DDC 3.1? 3.2??

MCP350 = DDC 3.1 = 9W DDC
MCP 355 = DDC 3.2 = 18W DDC

 

[thilanliyan]

Originally posted by: aigomorla

Originally posted by: thilan29
Thanks for all your help Aigo...I'd prefer to get one of those pumps...it's just a bit expensive. And it's a bit noisy isn't it? I really like that it's small though...hmmm...decisions decisions.

I wanted to ask, the Swiftech MCP355...is that the same as the DDC 3.1? 3.2??

MCP350 = DDC 3.1 = 9W DDC
MCP 355 = DDC 3.2 = 18W DDC

Are there any problems with the 3.2? I vaguely remember something being said about failing 3.1s or 3.2s...I can't remember which.

 

[aigomorla]

Originally posted by: thilan29

Originally posted by: aigomorla

Originally posted by: thilan29
Thanks for all your help Aigo...I'd prefer to get one of those pumps...it's just a bit expensive. And it's a bit noisy isn't it? I really like that it's small though...hmmm...decisions decisions.

I wanted to ask, the Swiftech MCP355...is that the same as the DDC 3.1? 3.2??

MCP350 = DDC 3.1 = 9W DDC
MCP 355 = DDC 3.2 = 18W DDC

Are there any problems with the 3.2? I vaguely remember something being said about failing 3.1s or 3.2s...I can't remember which.

DDC-2! was the one that had failure.

I lost 2 of them.

The 3.X series are fairly good with a good track record as of this moment.

 

[thilanliyan]

Originally posted by: aigomorla
DDC-2! was the one that had failure.

I lost 2 of them.

The 3.X series are fairly good with a good track record as of this moment.

Okay so the DDC-2s are NOT the 3.2s then?

 

[WoodButcher]

I've had no problems, both about 6 months 24/7

 

[thilanliyan]

Originally posted by: WoodButcher
I've had no problems, both about 6 months 24/7

On DDC-2s or 3.2s?