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post #21 of 35
Thread Starter 
Quote:
Originally Posted by ira-k View Post
The 18W DDC would be better for high restriction loops more head and it will flow as well or better...It just costs a little more...

Most ram blocks are 1/4" in the inside of the block so whether its 1/2" or 1/4" tubing going to it the flow will be killed.HDD blocks are the same...Putting a pump after it will not help..In other words everything will be bottle-necked by the smallest components.. You are going to kill your temp's by adding ram and HDD there is no way around it..If you put all that in the same loop your CPU temp's are going to be crap...The only way around it is by running two separate loops...

Is it really worth it...It would be to me..I have a 480 GTX....The GTS would be a better rad and is about the same price....120x38mm fans have a higher air pressure and I feel they scavenge air through the rad better...
Okay so the ddc+ Petra top pumps are truly better?

So no matter what, keep the hdds and RAM out of the CPU/GPU loop. Also I have heard some people say they put a radiator inbetween the GPUS and get roughly 5C cooling rather than put a radiator between the CPU and GPUs.

I thought the GTX was the improved version of the GTS?

So here is my thoughts now:

Loop1: (3/8" tubing)
Resevoir->18w ddc->CPU->GPU1->240GTS(X)/240Swifty->GPU2->360GTS(X)
Loop2: (1/4" tubing / Bling Factor)
Resevoir->18w ddc->Northbridge->RAM->Southbridge->HDD->240swifty

Any reason to put a second pump in the primary loop for redundancy incase the primary pump fails? Will the second pump be able to push water through the first pump if it does fail?

Also I am assuming my 1000W PSU should be able to handle all of this?
post #22 of 35
I'll second the two loops idea, I'm not getting the results I was hoping for with my loop with two rads and CPU GPU blocks.

Going to test out some flow rates to see if that's my problem, but if you're going SLI, I'd definately keep the GPUs and CPU separate.
    
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post #23 of 35
Thread Starter 
Quote:
Originally Posted by Martinm210 View Post
I'll second the two loops idea, I'm not getting the results I was hoping for with my loop with two rads and CPU GPU blocks.

Going to test out some flow rates to see if that's my problem, but if you're going SLI, I'd definately keep the GPUs and CPU separate.
Well the idea is still to keep the CPU and GPUs on the same loop, just now the question would be should I add a radiator or put the GPUs in parallel?

If I put the GPUs in parallel I would probably need a 1/2" hose and split it down to 3/8" after the y fitting to try to keep some pressure, not sure how well that would work, might be better to just run them in serial.

The second loop will be a 1/4" loop for all the parts that don't really need watercooling.
post #24 of 35
Quote:
Originally Posted by noother View Post
Okay so the ddc+ Petra top pumps are truly better?

So no matter what, keep the hdds and RAM out of the CPU/GPU loop. Also I have heard some people say they put a radiator inbetween the GPUS and get roughly 5C cooling rather than put a radiator between the CPU and GPUs.

I thought the GTX was the improved version of the GTS?

So here is my thoughts now:

Loop1: (3/8" tubing)
Resevoir->18w ddc->CPU->GPU1->240GTS(X)/240Swifty->GPU2->360GTS(X)
Loop2: (1/4" tubing / Bling Factor)
Resevoir->18w ddc->Northbridge->RAM->Southbridge->HDD->240swifty

Any reason to put a second pump in the primary loop for redundancy incase the primary pump fails? Will the second pump be able to push water through the first pump if it does fail?

Also I am assuming my 1000W PSU should be able to handle all of this?

Yeah I really do think the DDC would be better in a more restrictive loop..They are good pumps...Geat head...

If you go with 1/2" and 7/16x5/8" tubing you will get about the same flow as full 1/2" tubing and it will still be pretty managable and easy to route around in your case...It will flow more the the 3/8" fittings and tubing...That is if you get the Petra top for the DDC you can use bigger barbs with it...

I would go with the GTX if you don't mind some 70+ cfm fans on it..You might want to seriously try to fit a 360 rad into the CPU and GPU loop you will be dumping some major heat into it....If you want quieter fans go with the Thermochill PA it will cool well even with lower cfm fans 50cfm+...

I run my loops res-pump-rad-cpu-any other blocks that way the coolest possible water will hit the cpu first...If you have to run a lot of extra tubing to do that don't the extra tubing would just cause more restriction and defeat the purpose...You might want to try a rad between the GPU's that sounds like a good idea...Maybe just a 120 so not to have a lot more restriction...

I added a second pump for redundancy because I turned this into a Pelt rig and it wouldn't take long to fry my chip if a pump failed..Yeah water runs right through these pumps if one is off...I only dropped 2.5C by adding a second pump but that is in a cpu only loop I'm sure if I had GPU's it would of been more...
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post #25 of 35
Thread Starter 
Quote:
Originally Posted by ira-k View Post
Yeah I really do think the DDC would be better in a more restrictive loop..They are good pumps...Geat head...

If you go with 1/2" and 7/16x5/8" tubing you will get about the same flow as full 1/2" tubing and it will still be pretty managable and easy to route around in your case...It will flow more the the 3/8" fittings and tubing...That is if you get the Petra top for the DDC you can use bigger barbs with it...

I would go with the GTX if you don't mind some 70+ cfm fans on it..You might want to seriously try to fit a 360 rad into the CPU and GPU loop you will be dumping some major heat into it....If you want quieter fans go with the Thermochill PA it will cool well even with lower cfm fans 50cfm+...

I run my loops res-pump-rad-cpu-any other blocks that way the coolest possible water will hit the cpu first...If you have to run a lot of extra tubing to do that don't the extra tubing would just cause more restriction and defeat the purpose...You might want to try a rad between the GPU's that sounds like a good idea...Maybe just a 120 so not to have a lot more restriction...

I added a second pump for redundancy because I turned this into a Pelt rig and it wouldn't take long to fry my chip if a pump failed..Yeah water runs right through these pumps if one is off...I only dropped 2.5C by adding a second pump but that is in a cpu only loop I'm sure if I had GPU's it would of been more...
The reason for the redundancy in my case is if I am OCing the processor to ~4Ghz and both GPUs to ~700Mhz, that is a lot of heat and damage if a pump goes... So if I use the 7/16" tubes and then split them to run 3/8" loop through each GPU at the same time, would that be better and easier than adding a second radiator?

Res->Petras DDC Pump->360 Black Ice GTX->CPU->GPU1/GPU2 in parallel->Res

or

Res->Petras DDC Pump->Swifty240->CPU->GPU1->Swifty240->GPU2->Res
post #26 of 35
Quote:
Originally Posted by noother View Post
The reason for the redundancy in my case is if I am OCing the processor to ~4Ghz and both GPUs to ~700Mhz, that is a lot of heat and damage if a pump goes... So if I use the 7/16" tubes and then split them to run 3/8" loop through each GPU at the same time, would that be better and easier than adding a second radiator?

Res->Petras DDC Pump->360 Black Ice GTX->CPU->GPU1/GPU2 in parallel->Res

or

Res->Petras DDC Pump->Swifty240->CPU->GPU1->Swifty240->GPU2->Res
I would keep it all in series as in the second loop there...If you have 2 of those pumps in series flow will be a non-issue...I'm getting right at 3gpm in my loop...

I just don't like split loops they are hard to get even flow out of...I've seen to many guys getting crap temp's then switch over to series and the temp's improve....I know there are guys who like it and do it and have good luck with it but its not for me...
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post #27 of 35
Thread Starter 
Quote:
Originally Posted by ira-k View Post
I would keep it all in series as in the second loop there...If you have 2 of those pumps in series flow will be a non-issue...I'm getting right at 3gpm in my loop...

I just don't like split loops they are hard to get even flow out of...I've seen to many guys getting crap temp's then switch over to series and the temp's improve....I know there are guys who like it and do it and have good luck with it but its not for me...
And do you just put your pumps inline or split them up in the loop?

IE

Res->Pump->Pump->Rad->CPU->GPUs
or
Res->Pump->Rad->CPU->Pump->GPUs or some such.

Also I had someone mention in another thread that they would suggest the D-Tek GFX waterblock and heatsink combo instead of the Swifty 60.

http://www.dtekcustoms.com/index.asp...rodID=189&HS=1
post #28 of 35
Quote:
Originally Posted by noother View Post
And do you just put your pumps inline or split them up in the loop?

IE

Res->Pump->Pump->Rad->CPU->GPUs
or
Res->Pump->Rad->CPU->Pump->GPUs or some such.
One right after the other...res-pump-pump-rad-cpu-

Did I link you to this little test before its interesting...

....http://www.xtremesystems.org/forums/...d.php?t=117215
DDC Top & Pump Performance Comparison

Then I found this one last night I haven't had time to read it all...

...Well it wont link....
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post #29 of 35
Thread Starter 
Quote:
Originally Posted by ira-k View Post
One right after the other...res-pump-pump-rad-cpu-

Did I link you to this little test before its interesting...

....http://www.xtremesystems.org/forums/...d.php?t=117215
DDC Top & Pump Performance Comparison

Then I found this one last night I haven't had time to read it all...

...Well it wont link....
Yeah I had read that review before, and it would seem that the ddc+ wth Alphacool top is the best of all of them. Just copy and past the other link =]

I also see many people arguing over the Black Ice GTX vs Thermochill PA vs Primochill. I would think the 2 pass GTX would reign supreme between all of these, but some disagree?
post #30 of 35
Quote:
Originally Posted by noother View Post
Yeah I had read that review before, and it would seem that the ddc+ wth Alphacool top is the best of all of them. Just copy and past the other link =]

I also see many people arguing over the Black Ice GTX vs Thermochill PA vs Primochill. I would think the 2 pass GTX would reign supreme between all of these, but some disagree?
Well that link was just about like the other one...The link is dead i'll see if I can find it again later....

Even Thermochill admits the 480 GTX is better then the Thermochill PA.3 with 70+ cfm fans...So that probably means the 360 GTX kicks it's tail to... ...I like Black Ice rads they have always performed great for me....
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