What happend to the Nexxos XP review?

[pHaestus]

So many revisions too. muffled vs unmuffled D4s etc etc

[BillA]

that is Laing's decision; the D4 will be called such as long as it is sold - despite any modifications or revision
Swiftech however will (probably) re-number the pump model if the change is substantial
- so one can predict that those not following our lead will introduce more confusion into the pump nomenclature

[dacooltech]

I'm not aware of any other distros offering AQX-50Z-DC12 in the computer liquid cooling market pH.

Using both names is fine by me AquaXtreme AQX-50Z-DC12 (MCP600 rev.2)

[Cathar]

I'll just dream of a pump that has:

6mH2O peak head
13LPM peak flow rate
~3.5mH2O @ 6LPM
12V DC
Separated Magnetic Armature Design
20W (1.7A) Power Draw at 6 - 7 LPM at 12.0v

Perfectly reasonable specifications given everything that the MCP600 does. 'twould be about as close to a "universally" ideal pump across a very broad range of radiator and block scenarios.

/me closes eyes and goes back to sleep.

[9mmCensor]

Originally Posted by Cathar

I'll just dream of a pump that has:

6mH2O peak head
13LPM peak flow rate
~3.5mH2O @ 6LPM
12V DC
Separated Magnetic Armature Design
20W (1.7A) Power Draw at 6 - 7 LPM at 12.0v

Perfectly reasonable specifications given everything that the MCP600 does. 'twould be about as close to a "universally" ideal pump across a very broad range of radiator and block scenarios.

/me closes eyes and goes back to sleep.

it should also be shinny. and have lights and switches.
and be really quite

[pHaestus]

and with big tits!

[mastermind2004]

It should also do my dishes and make me a sandwich.

[Chew_Toy]

Originally Posted by Cathar

I'll just dream of a pump that has:

6mH2O peak head
13LPM peak flow rate
~3.5mH2O @ 6LPM
12V DC
Separated Magnetic Armature Design
20W (1.7A) Power Draw at 6 - 7 LPM at 12.0v

Perfectly reasonable specifications given everything that the MCP600 does. 'twould be about as close to a "universally" ideal pump across a very broad range of radiator and block scenarios.

/me closes eyes and goes back to sleep.

I just requested a quote on a pump that is the bigger brother of the MCP600 I believe. Here is a shot of the pq curve and the pump is rated @ 25w @ 24v with a possibility of a 12v model (conflicting statements found)




Looks close to your Ideal pump even tho is a little short on max head it has close to 2gpm @ 3.5m

Here is what I found one place

NH-PX-D Series -- NH-50PX-Z-D-F
SPECIFICATIONS
Power Source 12 VDC (optional feature); 24VDC (optional feature)
Pump Features Sealless
Media Liquids
Market Segment GeneralUse
Notes DC powered pump is driven by a magnetic coupling

And here another

Ordering Note- Specify the voltage required when ordering. 12 Vdc or 24 Vdc for models 5PX & 10PX, 24Vdc for all other models

Model NH-50PX-Z-D-F
Casing ETFE
Bearing *Ceramic
Thrust Pad Rulon™
Shaft *Ceramic
Tubing Conn.(mm) 18
Threaded MNPT 3/4”
Speed (RPM) 3500
Max Press(m)-Flow(lpm) 3.60-18.60 (I would guess the head is a typ and should be 5.6 considering that the two lower models are @3000rpm 4.30-13.00 and the one at 2500 is 2.30-11.00) it could even be 6.6 considering the differences from the other two amd for some reason the specs dont match the graphs (I may have to call them to see if I can get the real figures since they varry so mutch from the spec sheet and the graph.

I found these back just before I bought my MCP600 but blew them off because of the lack of 12v power, but if that one quote is right and are available with 12v and they have them on hand I will order one as long as its under 300 for one. It would make a good choice with my G5(hopefully I sbmittied early enough on the list to get from the 1st batch I was put on it 9/21/04)

[Cathar]

ChewToy: Peak head at zero flow is relatively unimportant, as well as maximum peak flow. It's the mid-range (3-10LPM) and power-draw that counts, and what you've quoted there is just about damn near perfect at the 2700RPM line. Even better mid-range head than I was talking about. Slightly higher power draw, but 4W is neither here nor there when talking about a bit of extra mid-range punch.

A nice 60W x 24v PSU which can be bought for $36 Australian, or ~$25US, would do the powering job perfectly and fit inside a CD-ROM bay.

Yep, that'd come as close as any pump I've yet seen to those specs.

Where from and how much? Size?

[Chew_Toy]

Originally Posted by Cathar

ChewToy: Peak head at zero flow is relatively unimportant, as well as maximum peak flow. It's the mid-range (3-10LPM) and power-draw that counts, and what you've quoted there is just about damn near perfect at the 2700RPM line. Even better mid-range head than I was talking about. Slightly higher power draw, but 4W is neither here nor there when talking about a bit of extra mid-range punch.

A nice 60W x 24v PSU which can be bought for $36 Australian, or ~$25US, would do the powering job perfectly and fit inside a CD-ROM bay.

Yep, that'd come as close as any pump I've yet seen to those specs.

Where from and how much? Size?

http://www.clarksol.com/html/prodspecsNH_PXDPump.htm

Dont know price yet. If dont get a e-mail before noon will call.

Yes I know the mid to upper mid is whaere its at and this looked a lil better than your ideal in that area. Its like the MCP600 which is strong in the nid to upper mid rane that makes it compete so well with the D4 and others.

W H L

95 125 190

[Cathar]

Originally Posted by Chew_Toy

http://www.clarksol.com/html/prodspecsNH_PXDPump.htm

Dont know price yet. If dont get a e-mail before noon will call.

Yes I know the mid to upper mid is whaere its at and this looked a lil better than your ideal in that area. Its like the MCP600 which is strong in the nid to upper mid rane that makes it compete so well with the D4 and others.

W H L

95 125 190

Hmmm, what's up with the table specs not even remotely matching the PQ charts?

[Chew_Toy]

Originally Posted by Cathar

Hmmm, what's up with the table specs not even remotely matching the PQ charts?

Your guess is as good as mine. But I would say if anything the graph would be on the moddest side of the actual output. I hope to find out tomorrow.

I cant believe it took me this long to find the bookmark I made last winter when I was shopping for a pump. the 24v is what had me put it off and out of mind also I guess.

[Chew_Toy]

Well other than rpm the lower two curves do match the other two models on that pump. Its the 3500rpm model where as far as I can tell nieter seems right both a lil low from what you would expect from a 500rpm increase on a centrifigal pump, but on the table if you changed the 3.6 to a 6.6 I think it would fit with the other two

[nikhsub1]

This part makes me nervous: " Rated Life - 10,000 hours"

[Chew_Toy]

Time is the only thing that will tell how long they would live in a WC system. I would guess much longer and I hope to find out :-)

[dacooltech]

Chew_Toy there're new models better than 50PX
think about the 12V versions of Iwaki RD series both in performance and size

[alexwai]

Originally Posted by dacooltech

Chew_Toy there're new models better than 50PX
think about the 12V versions of Iwaki RD series both in performance and size

Including RD-20 and 30?

[dacooltech]

Originally Posted by nikhsub1

This part makes me nervous: " Rated Life - 10,000 hours"

Scott, what's the life rating on the Iwaki RD?

[dacooltech]

Originally Posted by alexwai

Including RD-20 and 30?

Yes

10 characters

[alexwai]

Originally Posted by dacooltech

Yes

10 characters

Sorry, I am just the chinese guy. Don't know what does "10 characters" mean?

[dacooltech]

Originally Posted by alexwai

Sorry, I am just the chinese guy. Don't know what does "10 characters" mean?

lol

"The message you have entered is too short. Please lengthen your message to at least 10 characters." :shrug:

[Cathar]

Originally Posted by dacooltech

Chew_Toy there're new models better than 50PX

Hmmm, "better" is an extremely debatable point.

The issue we're fighting here is matching off performance for pump heat. The 50PX-Z is an extremely nice match of pump power vs current draw vs heat (extrapolating from the MCP600/AQX-50Z).

Going to a stronger pump would start to tip the scales away from being a good match with single and dual radiators, and then starting to require triple or even quadruple radiators to adequately compensate for the extra pump heat.

Most every single block on the market will see very diminished returns for pumps stronger than the 50PX-Z, meaning that CPU temps will just tend to plateau even though a stronger pump gets thrown at the problem.

Strong pumps like an RD-30 really only start to make good sense with quad-fan radiators unless a particular block still has a lot to benefit, in which case maybe a triple radiator.

For a one-size-fits-most the pump specs I outlined, or as provided by a 50PX-Z, would be very hard to beat.

[dacooltech]

Originally Posted by Cathar

Hmmm, "better" is an extremely debatable point.

The issue we're fighting here is matching off performance for pump heat. The 50PX-Z is an extremely nice match of pump power vs current draw vs heat (extrapolating from the MCP600/AQX-50Z).

Going to a stronger pump would start to tip the scales away from being a good match with single and dual radiators, and then starting to require triple or even quadruple radiators to adequately compensate for the extra pump heat.

Most every single block on the market will see very diminished returns for pumps stronger than the 50PX-Z, meaning that CPU temps will just tend to plateau even though a stronger pump gets thrown at the problem.

Strong pumps like an RD-30 really only start to make good sense with quad-fan radiators unless a particular block still has a lot to benefit, in which case maybe a triple radiator.

For a one-size-fits-most the pump specs I outlined, or as provided by a 50PX-Z, would be very hard to beat.

You're right Stew.
I have a 50PX-Z for about a year now. But small form factor is also an important factor to me. 50PX-Z is bulky, just like the MD-20RZ.
and when I say better I consider the size and price too.

I'll e-mail you the specs and the PQ curves of the new 12V pumps.
I'm expecting to receive samples of the new pumps this week. I can send one of the new ones that you choose, together with a 12V 50PX-Z to you.

[Chew_Toy]

Originally Posted by dacooltech

You're right Stew.
I have a 50PX-Z for about a year now. But small form factor is also an important factor to me. 50PX-Z is bulky, just like the MD-20RZ.
and when I say better I consider the size and price too.

I'll e-mail you the specs and the PQ curves of the new 12V pumps.
I'm expecting to receive samples of the new pumps this week. I can send one of the new ones that you choose, together with a 12V 50PX-Z to you.

Could you send those specs to me also? I wont need a new pump till my G5s come and that wont be till jan at the earliest and if you are going to carry a pump that would fit me better than the 50PX-Z(and I am sure at a better price than I could buy a single unit for) I would rather not waste my money on something that is inferior just to get it before I really need it.

[dacooltech]

will do Chew_Toy