Waterblock Recommendation

[orleans97]

I've finally come around to updating my computer and this time I'm goin all the way.
A64 w/6800GT anywho my question is...What waterblocks are recommended for the CPU and GPU.
I currently already have setup a Mag 5, 2 corvette HCs, tygon 1/2", all barbs and clamps and a reservoir all I now need is the waterblocks.I was thinking WW or RBX for the high pressure I'll be putting out. As for the GPU, I really don't like major modifications so I wasn't thinking too hard on the swiftech approach, and the DD block has gotten BAD reviews.Is there any others to consider or should I just run the CPU and wait for the GPU at a later date? Any and all help appreciated. Thanks in advance.
Dustin

 

[thewhiteguy]

The Swiftech MCW6002 is the best all-around 1/2" waterblock you can order* now IMO. The reviews are all very good and the price is better than the dangerden blocks.

* Good luck actually getting one though.

 

[Chicken Penni Pasta]

I always found the 2 output Dangerden blocks to be great. The only problem is they're annoying to set up.

As for the 3D card, there is the $125 Dangerden block...otherwise, there's the koolance one.

 

[DryFire]

mcw6002 is a great block.

Cathar's coming out with something new but i don't know how long it will take and it's like 2x the price for like 1C difference.

 

[HaVoC]

TDX for the a64

 

[Nexxus]

ill sell you my danger den gpu water blcok..

 

[EbolaZaire]

so this swiftech mcw6002 is actually better than the whitewater?

 

[DryFire]

depends on your flow rate but theyare not off by much.

http://www.procooling.com/html/pro_testing.php

 

[thewhiteguy]

Swiftech still won't give me any straight answers on the problem with MCW6002 supply so I'm probably going to order some other block, it's been 3 weeks now and I guess they feel they still don't owe me or their resellers a straight answer..

 

[Wolf-R1]

Swiftech still won't give me any straight answers on the problem with MCW6002 supply so I'm probably going to order some other block, it's been 3 weeks now and I guess they feel they still don't owe me or their resellers a straight answer..

I finally ordered a DD TDX because of the same reason. I've been waiting for a month for the Swifty 6002A and there is still no guaranteed date in sight.

 

[bellevegasj]

MWC6002 are great
PolarFlow are great but can't be use on all motherboards


You wont go wrong with any mentioned here.

 

[thewhiteguy]

I can't find any blocks that perform close to the 6002 without being really restrictive. I don't want to kill my flowrate because I might be adding more blocks later.

 

[Cathar]

I can't find any blocks that perform close to the 6002 without being really restrictive. I don't want to kill my flowrate because I might be adding more blocks later.

Well the thing is that restrictive block's performance is typically less affected by the addition of other blocks than low-restriction blocks.

 

[thewhiteguy]

Well the thing is that restrictive block's performance is typically less affected by the addition of other blocks than low-restriction blocks.

Yeah, and I may end up going for one. I just don't like the idea of running big 1/2" stuff just to get it restricted by one of those nozzles (I don't like the idea of those). Plus the lower flow will affect any blocks I add later in the chain. Why does Swiftech's supply have to be so poor, I want a 6002

Edit: not to mention that for all the added restriction the performance is not much better at all.

 

[DryFire]

Well the thing is that restrictive block's performance is typically less affected by the addition of other blocks than low-restriction blocks.

With restrictive vs non restrictive by adding a moderatly restrictive gpu block how much of a difference would i see?

the 6000 seems to preform very well at low flow rates as compared to other blocks, but is of course later over taken.

but even then compared to the cascade and whitewater it does not seem to differ by more then ~ 1C according to the graph.

I guess i have digressed from the restrictive / non-restrictive blocks.

How restricve are aforementioned blocks relativly speaking?

P.S.

cathar - how's the new block coming? I guess nothing you havnt posted at on procooling?

 

[Cathar]

Wow - lots of questions.

With restrictive vs non restrictive by adding a moderatly restrictive gpu block how much of a difference would i see?

Not that big of a difference. We're typically talking in the tenths of a degree C difference between the different scenarios. It really depends on what additional blocks you're adding. If you're adding blocks that are more restrictive than the low-restriction CPU block, then for certain scenarios we could be talking about a 1C difference.

the 6000 seems to preform very well at low flow rates as compared to other blocks, but is of course later over taken.

The 6000's strength truly does lie around the sorts of kits that Swiftech offers, with its 3/8" ID tubing, and the pumps offered with those kits, which I actually think is a very nice solution. They are a very well balanced. When looking at doing a mix'n'match setup I do agree that this tends to make the picture somewhat more blurry.

but even then compared to the cascade and whitewater it does not seem to differ by more then ~ 1C according to the graph.

Are we looking at Phaestus's graphs? It has been commented many times that there appears to be some form of temperature compression going on with his results, and by that I mean that the differences should be a little larger than what is shown given everything that is commonly understood about water-cooling. This has been largely attributed to whatever it is that the AMD's CPU thermal diode is measuring, which would appear to be a fairly cool section of the CPU. Estimates at Procooling's forums posit that the delta-T results should all be around 50-60% or so higher than presented, so a 1C difference really would be a 1.5-1.6C difference. It doesn't affect the rankings of the blocks at any particular flow rate, it just affects the scale of the difference shown. I believe that Phaestus is presently attempting to find a resolution to this issue.

I guess i have digressed from the restrictive / non-restrictive blocks.

How restricve are aforementioned blocks relativly speaking?

Depends on one's definition of restrictive. The Cascade/MCW6000/WhiteWater/RBX/TDX are all relatively close in terms of restrictivess, meaning that final flow rates with a given pump won't really differ by more than about 15% around a central median if one switches one block for another. They all are what I personally classify as medium restriction blocks.

cathar - how's the new block coming? I guess nothing you havnt posted at on procooling?

Coming along very well. First batch production is already well under way. On target for end of September or first week October. Just managed to secure the lapping services of a very good firm whose results far excels what I was able to achieve by hand and am very happy with the progress. All I need now is for the USA dollar to get stronger again... The USA market is now nearly impossible to import into with the USA dollar's low international value.

[Edit: Fix some grammar]

 

[DryFire]

I wasn't thinking there was much of a differance between blocks in terms of flow.

Professional lapping services, sounds like we''ll be getting some very shiny blocks.


As for the weak dollar, I'm feeling that here. Finding a decent job is almost impossible now (for youger people). Most of the people hiring are upping their expectations and hoping to get more stable older people.

I do need to try harder though.

 

[thewhiteguy]

I wasn't thinking there was much of a differance between blocks in terms of flow.

It's the same thing as electricity, when you increase the resistance you decrease the amperage (flow).

 

[Cathar]

Professional lapping services, sounds like we''ll be getting some very shiny blocks.

Not quite. Shiny-ness (high reflectivity) does not equate to flatness. For example, ever visited a fun-house with those funky mirrors at an amusement park?

Finish will be a satin-like reflectiveness, being dull and smoky. Flatness will typically be under 0.0002" which was the lowest we could measure to and we didn't see any variation. A couple of minutes with Brasso and a soft cloth will result in a mirror finish for those who want that sort of thing.

As for the weak dollar, I'm feeling that here. Finding a decent job is almost impossible now (for youger people). Most of the people hiring are upping their expectations and hoping to get more stable older people.

I do need to try harder though.

Hmmm, I thought that the weak USA dollar would have helped with the employment situation. It makes locally USA made products cheaper to export, meaning that local production should go up and thereby create jobs and increase employment. Of course, that would only happen once the economy stabilises and employers regain confidence, which from what you're saying still has not happened yet. Shouldn't be too much longer though.

 

[Cathar]

It's the same thing as electricity, when you increase the resistance you decrease the amperage (flow).

Except in this case the potential difference (voltage) equates to pumping pressure, and for centrifugal pumps the pressure increases as flow decreases.

Flow resistance is also proportional to the flow rate squared (for the most part).

In general it typically takes something that's between 5-6x more restrictive than something else to halve the flow rate in a centrigual pump driven system.

 

[DryFire]

Hmmm, I thought that the weak USA dollar would have helped with the employment situation. It makes locally USA made products cheaper to export, meaning that local production should go up and thereby create jobs and increase employment. Of course, that would only happen once the economy stabilises and employers regain confidence, which from what you're saying still has not happened yet. Shouldn't be too much longer though.

it's starting to stablize. If it does or doesn't, retailers will be hiring soon for the holiday season. So we could see some more employer confidence after the season.

(this coming from someone who knows little about economics, so i could very easily be wrong)

as for reflectivity i guess you're right. I seem to automatically assume blocks are flat.

 

[Optimummind]

ill sell you my danger den gpu water blcok..

Are you not happy with that block? If so, why?

 

[thewhiteguy]

I finally caved and bought an RBX. THe performance is only about 2 degrees worse than the 6002 and only at low flow rates. If I'm going to have a restrictive inlet, I want nice and open dual outlets so I chose this one over the TDX.