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Would this be a good pump for watercooling? (ebay, pics)

M

Murd0ck

Member
I am putting together a water cooled system. I want to run 2x black ice extreme 2 radiators, 2 GPU blocks, 1 CPU block, and possibly a block for the Nforce 4 chip on my a8n sli deluxe motherboard.

So, 4 waterblocks and 2 radiators. I am thinking about getting one of these type of pumps Iwaki Walchem Magnetic Drive 115volt Pump Like New (model WMD-30RLZT)

Is this to "overkill"? I am thinking about buying the next size up from this one.

I think I will use 3/8 ID tubing. I would like to use 1/2" but that might be pushing it for individual lines. Most of these pumps have 3/4 to 1" fittings. I want to run Indivdual lines to my waterblocks so each waterblock gets a fresh supply of coolant that hasn't taken any heat from another component.

In all there would be 2 reducer blocks (1x1"ID to 4x3/8"ID and back), 4 water blocks(2 for sli(GPU's) +1 each for the CPU and Nforce 4 chips), and the 2 radiators.

Any thoughts on how much resistance/head all this stuff would equate to? What is a good flow rate for a watercooled system?
 
Don't get that pump whatever you do, it dumps in 50watt of heat!! the high head pressure doesn't justify the 50w of heat into the water loop. Everythign else looks fine and keep your nforce4 northbridge the way it is... dumping more heat into the loop is a no no and a waste of much but it would be a pimp factor to have all of those 🙂
 
Ok, I didn't realize the pump added 50 watts of heat to the coolant, but couldn't the two radiators take care of that? I never want to add any extra heat to my coolant.

Unless, say the pump added 50watts but removed 100watts for a net gain of 50 watts? I dono.

Do all the more powerfull pumps add an innordinate ammount of heat to the coolant?

This one says 120 input (w) watts? on the chart. Blueline HD40 Water Pump 780gph

So is that 120(w) how much heat the pump transfers to the coolant, or is that the amount of power it takes to run the pump at those flow rates?

How much heat do the smaller pumps like the one at Danger Den put into the coolant?

I have read about tests where the cooling power increased as the flow rate increased. This makes sense to a point, but at very high pressures(much more than we have here) I would think the gains would be less as friction increased thus increasing heat?

I'm just concerned about having a little $50.00 pump cooling $1000.00+ of parts, if you know what I mean.

How much capacity do you think I would need to have good flow rates on this kind of system? Any pump suggestions beside the average 320 gallon ones that sell with kits?
 
whoa, I didn't realize you were going to run 2 black ice extreme dual.. If I were you i'll just get a heater core go to www.xtremeforums.com contact weapon for his heatercore+shroud for 65+shipping it cools just as good as a BIX3 with medium speed fans. I would get the Aquaxtreme 50z it's by far better than the new DDC by danger den or MCP350. The mcp650 and dangerden d4 is also a good choice but a little bit loud. Go with the Aquaextreme 50z it's very quiet. Those pumps are known to pump 300+ gph. Btw, the aquaextreme ony adds 6w of heatinto the coolant. Btw, your setup is overkill for your cooling system.

Get an AquaXtreme 50z pump
Weapon Heatercore+Shorud
DangerDen Maze4 GPU (new version is out)
Dangerden TDX with nozzle 4.'
Reservoir or Tline of your choice.
 
Ok, I cant find the pump on google?

I almost bought a heatercore at the auto parts store. I want the radiator and pump outside my case so size isnt to critical just as long as the fans fit.

What kind of heater core is it? 2 pass,4 pass? I tried to search their forums at www.xtremeforums.com , but it said i had to register?

I have heard these little northbridge type fans never last to long? I was going to put a waterblock on it but It might need to be a special dimension or offset to clear the video cards on the a8n sli?
 
you can find the pump at www.cooltechnica.com the aquaxtreme 50z if you're not worried about size and it'll be an external housing I would suggest you look into the iwaki md-20 (japanese model) wmd-20 (united states model) it's simply the best pump in it's class. This pump does 6.7gallons per minute and has 14 feet of head and only uses about 35w or so. Also if you're going to run an external housing you might as well get heatercores 🙂 As for the radiator I believe it's a double pass but i'm not sure on this one i'll have to get back to you. But it has a larger surface area than a BIX3. You can pick up the '77 Bonneville core for about 20 bucks at autozone But you must do some modification. here is a link.

http://www.ocforums.com/showthread.php?t=304440&page=1&pp=30
 
Thanks for the help Idleuser. The heater core is all copper right? I read that in order to keep corrosion down I need to have the same metals in contact with the coolant? so either all copper components or all aluminum components,no combining them?

So if I had the all copper? heater core and copper TDX type waterblocks that would be good right?

Versus something like copper waterblocks with an aluminum radiator? I think the black ice ones are aluminum with copper fins? meaning no water touches the copper?

Since I'm mounting this on the outside I want it to look sharp (if thats possible). I would like to get my hands on one of those heater cores with a nice metal/copper shroud that was tapped for my 120mm fans? Do they make these?

A friend works in a metal fab shop where they have press brakes and stuff, but hes difficult to get motivated,heh.

You also mentioned the new maze 4 GPU cooler for 6800 series cards?

Is there any performance difference between that and the Danger Den NV-68 nVidia 6800 Water Block that sells for $100.00. Besides the memory cooling, unless that makes a difference?

What if I want to put a waterblock on the NF4 chip later on, should I use the smaller 3/8 ID tubing? 4 waterblocks just seems like a lot,that is, it seems most don't run that many.

I think 1/2 ID can draw more heat but that depends on some other things like flow? I dono.

I guess if I was only going to have a couple waterblocks it could be 1/2 inch, or would that pump in the aquaxtreme 50z be able to push 4 waterblocks using 1/2" ID tubing?

Thx again for the help.
 
I am looking at these pumps;BlueLine HD20 Water Pump 420gph, IWAKI MD20RLT, IWAKI MD20 RLXT and the aquaxtreme 50z.

It looks like Iwaki makes 2 different versions of the MD20.

MD20RLT = 420 gph and 14.1' max head
MD20RLXT = 540 gph and 8.2 ' max head

Which on of those two would be better?

Then there are these BlueLine pumps: Specs/pics
HD20 = 420 gph and 13' max head with an input of 45(w)?
HD30 = 510 gph and 16.5' max head with an input of 90(w)?< is this thermal transfer into the coolant?!?!

It looks like the MD20RLT and the HD20 are about the same. One etailer claims the HD20 to be a more quiet pump than it's Iwaki counterpart?

Heres what they said about the BlueLine pumps.."BlueLine HD Pumps

"Our best, most reliable, cost effective pumps for applications requiring heavy flow without all the noise"

These pumps are designed and built by a former chief engineer from Iwaki-Japan. They feature the same flow curves, high head pressure, low noise, and reliability that have made Iwaki the best magnetic drive pumps available. The BlueLine HD pumps are even slightly quieter than Iwaki, with a lower frequency. These units are yellow rather than green and carry a full 1 Year parts and labor guarantee. All seal-free bearings and magnetic drive for 10+ years of useable life. No seals to leak!

* Cost effective. Compare to Iwaki
* Energy Efficient. Much more efficient - starting at only 20 watts
* Quiet. Quieter than Iwaki
* Sealed Motor. For long-lasting pump life. Can last over ten years.
* Pressure Rated. Stands up to the best. Again, compare charts to the Little Giant 5MDQ, Iwaki and GRI
* Standardized Plumbing. Uses 1" in and 1" out threaded fittings"

The BlueLine are a little less expensive but still cost more than the aquaxtreme 50z

I just can't find out which one puts more heat in the water? maybe I will call them tomorrow?
 
Yes those blueline are quite some pumps 🙂 from what I heard they are very nice but not too many people has tried them and I havn't read much about them. As for the heatcore it's made of all copper so it won't corrode and you are correct about the blackice but they're made from the ground up for pc radiators so they won't corrode as long as you have some anticorrosion protection like Vavoline Zerex. Buy it at pepboys for 2.49 for 14.5 FL OZ compared to those price gouging at Dangerden. As for the nforce 4 chipset you would have to wait until a nice and low profile comes out to fit them that doesn't kill flow. Currently the best chipset waterblocks are the Dangerden maze4 chipset and the swiftech mcw20 but they don't fit the nforce 4 chipset without getting into the way of the cards.

And for the Danger Den NV68 it's a flow killer it has too many elbow bends and doesn't cool all too well. While's an average block at best it's not killer. The DD Maze 4 GPU are by far one of the best waterblocks out there with restrictive flows meaning it won't kill your flow rate. Last but not least the loop won't corrode as long as there is anticorrision fluids mixed into the loop. I'm 100% sure all alumnium blocks are anodize and they usually last for 50+ years. Again I would advice you to mix Zerex into the loop and copper top is basically to reassure you that the loop won't corrode overtime even without mixing zerex.
 
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