How to arrange piping for serial inline system?

Makaijin · 03-20-2002, 10:16 PM

Ok, whil e i'm waiting for my blocks to arrive, i'm trying to think how i should arrange the pipework for the 3 blocks.
This will be a single loop inline system. I don't plan on going parallel due to space problems with all the tubing.

Here's what i was thinking of;
Northbridge -> CPU -> GPU

In this example, I chose this because I guess that the n/b will produce the least heat. The raise in water temp will be minimal compared to CPU -> n/b, by taking into account that the n/b might be more sensitive to heat to disallow a higher FSB overclock. the GPU will be last due to the lower prioity for cooler water.

Another one is;
CPU -> GPU -> Northbridge

In this one, I assume that the n/b is not really that sensitive to higher temp (i'm not really sure on this, hence the reason for this post). Obviously the CPU will have priorty over the GPU due to it needing the coolest water.

The third one;
Northbridge -> GPU -> CPU;
or
GPU -> Northbridge -> CPU

For this choice, i assume that both the GPU and NB don't really put that much extra heat, as the main heat source is the CPU.
I was hoping in this choice that the extra heat from the CPU will affect the other 2 more than those 2 together affecting the CPU.
The NB will go first or second, depending on how sensitive the NB is to warmer water to give a better overclock,

Last but not the least;
CPU -> Northbridge -> GPU

This one assumes that the NB is more sensitive than the second example, but giving prioity to the CPU will wield better overclocks than giving it to the NB first.

You will notice that I never mentioned the GPU as the highest prioity, as I am trying to get whats best for a better CPU overclock. I also remember reading an artice about someone putting a pelter on the GF3 Ti 200 doesn't really help it to be stable at higher AGP bus speeds, and pushing the FSB a few more Mhz will do more than pushing a few more Mhz on my GF3.

So c'mon, give your advice on this.

Cyco-Dude · 03-20-2002, 10:51 PM

id do the CPU first; it is THE most important chip of the three. the GPU does get very hot under load, so id put that 2nd. and i wouldnt even bother watercooling the NB becuase it doesnt get that hot (but you know what they say, if you're gunna go out, go all out

). i guess it depends on the blocks you are planning to use and the flowrate thru the system.

Makaijin · 03-20-2002, 10:54 PM

All the blocks are from danger den. I'm also using a BIX for the rad, if that any help.

Haddy · 03-20-2002, 11:03 PM

i would say go to the cpu, gpu, nb......best would be a y spliter...one go tube to the cpu, the other to the gpu then nb

Brad · 03-21-2002, 01:36 AM

cpu --> gpu --> nb search for mashie's posts about his system to do it the right way

Makaijin · 03-21-2002, 06:59 AM

Quote:

Originally posted by Haddy
i would say go to the cpu, gpu, nb......best would be a y spliter...one go tube to the cpu, the other to the gpu then nb

I don't want to put it on a Y splitter, because the case is rather cramped inside already, or even my room for that fact.
Also, won't using Y splitter reduce the flow rate by half?
I thought the principle has always been faster flow rate to the blocks as possible, and the slowest flow rate to the radiator as possible?

Haddy · 03-21-2002, 11:05 AM

Quote:

Originally posted by Makaijin

I don't want to put it on a Y splitter, because the case is rather cramped inside already, or even my room for that fact.
Also, won't using Y splitter reduce the flow rate by half?
I thought the principle has always been faster flow rate to the blocks as possible, and the slowest flow rate to the radiator as possible?

well it doubles ur amount of tubing....but it all depends on the pump u have....

Triton · 03-21-2002, 04:32 PM

Y splits don't reduce your flow by half. I'm sure they reduce them by some, but not anywhere near half.

Cyph3r · 03-21-2002, 04:39 PM

hmm.. for a given i.d. u'd be able to get a fixed amount of volume V in a period of time T in a single tube... if u Y that tube into 2 tubes that are the same size as the original tube u'd have to push 2x the volume of water in the same amount of time in order to retain the fixed volume per time that u originally had. So in order to get V/T in each of the new tubes u'd have to have 2V/T in the feed tube to the Y provided it's laminar flow and the Y divides them equally and there is the same restriction at the end of each.

Right?

Cyph3r

please pardon the variables

just got done with algorithms homework

redleader · 03-21-2002, 05:12 PM

Quote:

Y splits don't reduce your flow by half. I'm sure they reduce them by some, but not anywhere near half.

Yes but the flow to the CPU would be halved (or more), so the effect is the same . . .

Quote:

would say go to the cpu, gpu, nb......best would be a y spliter...

Why? He has virtually no heat coming off the second and third blocks, so warm water isn't an issue. All a slipt would do is half flow to the CPU (which is the only place its needed) and waste space.

Haddy · 03-21-2002, 06:02 PM

Quote:

Originally posted by redleader

Yes but the flow to the CPU would be halved (or more), so the effect is the same . . .

Why? He has virtually no heat coming off the second and third blocks, so warm water isn't an issue. All a slipt would do is half flow to the CPU (which is the only place its needed) and waste space.

how do u know he doesnt run an overclocked vid card.....what would u suggest then?

Makaijin · 03-21-2002, 08:39 PM

Ok, i'll be running this on a P4 1.6a overclocked (how much will depend how high i can get) on DDR, and also a GeForce 3 Ti 200 overclocked as well.
All this will be running on a Eheim 1048, should really got an 1250, but no stock everywhere I go

I won't be heavy overclocking my GF3, probably just to 275/500 if it allows and no more. But i do want to squeeze as much mhz on the P4 as I can while keeping it plain watercooling.

Haddy · 03-21-2002, 08:48 PM

Quote:

Originally posted by Makaijin
Ok, i'll be running this on a P4 1.6a overclocked (how much will depend how high i can get) on DDR, and also a GeForce 3 Ti 200 overclocked as well.
All this will be running on a Eheim 1048, should really got an 1250, but no stock everywhere I go
I won't be heavy overclocking my GF3, probably just to 275/500 if it allows and no more. But i do want to squeeze as much mhz on the P4 as I can while keeping it plain watercooling.

yea ok use what i first said cpu, gpu, nb......i figured it wuz a athlon....

redleader · 03-21-2002, 11:11 PM

Quote:

how do u know he doesnt run an overclocked vid card.....what would u suggest then?

To date the hottest GPUs come in at about 15w IIRC. Thats nothing compared to the 80-90w+ from the pump and CPU even a modest setup. Since a good wc system will cool several hundred watts, the effect of all the extra blocks in the system is so small, its not even worth considering.

Quote:

also a GeForce 3 Ti 200 overclocked as well.

Those things use so little power, they are often passively cooled with tiny Al sinks.

03-20-2002, 10:16 PM	#1
Makaijin Cooling Neophyte Join Date: Jan 2002 Posts: 17	How to arrange piping for serial inline system? Ok, whil e i'm waiting for my blocks to arrive, i'm trying to think how i should arrange the pipework for the 3 blocks. This will be a single loop inline system. I don't plan on going parallel due to space problems with all the tubing. Here's what i was thinking of; Northbridge -> CPU -> GPU In this example, I chose this because I guess that the n/b will produce the least heat. The raise in water temp will be minimal compared to CPU -> n/b, by taking into account that the n/b might be more sensitive to heat to disallow a higher FSB overclock. the GPU will be last due to the lower prioity for cooler water. Another one is; CPU -> GPU -> Northbridge In this one, I assume that the n/b is not really that sensitive to higher temp (i'm not really sure on this, hence the reason for this post). Obviously the CPU will have priorty over the GPU due to it needing the coolest water. The third one; Northbridge -> GPU -> CPU; or GPU -> Northbridge -> CPU For this choice, i assume that both the GPU and NB don't really put that much extra heat, as the main heat source is the CPU. I was hoping in this choice that the extra heat from the CPU will affect the other 2 more than those 2 together affecting the CPU. The NB will go first or second, depending on how sensitive the NB is to warmer water to give a better overclock, Last but not the least; CPU -> Northbridge -> GPU This one assumes that the NB is more sensitive than the second example, but giving prioity to the CPU will wield better overclocks than giving it to the NB first. You will notice that I never mentioned the GPU as the highest prioity, as I am trying to get whats best for a better CPU overclock. I also remember reading an artice about someone putting a pelter on the GF3 Ti 200 doesn't really help it to be stable at higher AGP bus speeds, and pushing the FSB a few more Mhz will do more than pushing a few more Mhz on my GF3. So c'mon, give your advice on this.

03-21-2002, 01:36 AM	#5
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	cpu --> gpu --> nb search for mashie's posts about his system to do it the right way __________________ 2x P3 1100's at 1400, Abit VP6, 2x Corsair 256mb PC150 sticks, 20gb 'cuda ATA-III, 2x 40gb 'cuda ATA-IV in raid 0. 20" Trinitron. No fans 2x 2400+ at 2288mhz (16.0 x 143), Iwill MPX2, 2x Kingmax PC-3200 256mb sticks, 4x 20gb 60gxp in Raid 5 on a Promise SX6000. Asus Ti4200 320/630. Cooled by Water

03-21-2002, 04:32 PM	#8
Triton Cooling Neophyte Join Date: Nov 2001 Location: Union City, CA Posts: 78	Y splits don't reduce your flow by half. I'm sure they reduce them by some, but not anywhere near half. __________________ XP1800+ Gigabyte GA-7DX 512mb Crucial 2100 watercooled with Danger Den, Eheim, 1/2" silicone tubing, and Black Ice Xtreme radiator. Liteon 24x10x40x CDRW WD80gb +30gb hard drives Liteon FS020 case and much more at http://www.jakeandkelly.com/customcomputer/index.htm

03-20-2002, 10:51 PM	#2
Cyco-Dude Cooling Savant Join Date: Feb 2002 Location: Dayton, Ohio Posts: 836	id do the CPU first; it is THE most important chip of the three. the GPU does get very hot under load, so id put that 2nd. and i wouldnt even bother watercooling the NB becuase it doesnt get that hot (but you know what they say, if you're gunna go out, go all out ). i guess it depends on the blocks you are planning to use and the flowrate thru the system.

03-20-2002, 10:54 PM	#3
Makaijin Cooling Neophyte Join Date: Jan 2002 Posts: 17	All the blocks are from danger den. I'm also using a BIX for the rad, if that any help.

03-20-2002, 11:03 PM	#4
Haddy Cooling Savant Join Date: Mar 2002 Location: Mississippi Posts: 434	i would say go to the cpu, gpu, nb......best would be a y spliter...one go tube to the cpu, the other to the gpu then nb

03-21-2002, 04:39 PM	#9
Cyph3r Cooling Neophyte Join Date: Feb 2002 Location: West Lafayette, IN Posts: 45	hmm.. for a given i.d. u'd be able to get a fixed amount of volume V in a period of time T in a single tube... if u Y that tube into 2 tubes that are the same size as the original tube u'd have to push 2x the volume of water in the same amount of time in order to retain the fixed volume per time that u originally had. So in order to get V/T in each of the new tubes u'd have to have 2V/T in the feed tube to the Y provided it's laminar flow and the Y divides them equally and there is the same restriction at the end of each. Right? Cyph3r please pardon the variables just got done with algorithms homework

03-21-2002, 08:39 PM	#12
Makaijin Cooling Neophyte Join Date: Jan 2002 Posts: 17	Ok, i'll be running this on a P4 1.6a overclocked (how much will depend how high i can get) on DDR, and also a GeForce 3 Ti 200 overclocked as well. All this will be running on a Eheim 1048, should really got an 1250, but no stock everywhere I go I won't be heavy overclocking my GF3, probably just to 275/500 if it allows and no more. But i do want to squeeze as much mhz on the P4 as I can while keeping it plain watercooling.

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