Need advice on load sharing for dual loops

[WinMXer]

Hi.

I'm putting together a dual loop water setup in an STC-T01, using 1x BIP-360 Rad in the bottom & 2x 120 Rads, back & top (unknown brand but thicker than the BIP). The entire system will be piped out with 1/2" Clearflex & 1/2" EK barbs. I plan to cool the following heat sources:

* E6300 (Apogee GT)

* LANParty UT ICFX3200-T2R/G - Northbridge (DDMaze4-Intel) , Southbridge (DDMaze4-Intel) & Mosfets (MIPS MCH143)

* X1950XTX (EK-FCX1900) - With possibility of adding a 2nd for Crossfire later

* Danger Den Aquadrive

I will be hooking up Yate Loon D12SL-12's to all the rads, 5 in total all connected to fan controllers. Just received a couple of black Scythe Kaze-Master's & they look the nutts. I also have one spare DDC 10W and a spare D4. I'll probably end up using these unless there's some special reason why I shouldn't. For the res I have a few choices open to me, i'll decide on that later.

Guess I have a few questions to shoot really:

1. Do I have enough capacity in those rads to deal with the heat dump?

2. How should I best divide the load between the three rads?

3. Which pumps should be used for each loop?

Any help from anyone would be sincerely appreciated. Thanks guys!

 

[Phoenix]

Delete one of your threads, mate.

 

[WinMXer]

Bummer, cheers for the heads up Phoenix!

So, any suggestions guys?

 

[JackyBoy]

before i start i havent wc yet, but will at the end of the month, but i have researched alot! so i thought i would share what i know

do you need 2 loops? becuase im doing cpu, gpu (8800ultra!!), physX, NB, SB, and 2x Mosfets, then into a Thermochill 120.3 radiator. and ive asked alot of people and they said the one loop will be fine just possible need to add another radiator if im going to overclock the harris out of it...

so maybe just try using the one loop with 1 big rad and one of the smaller ones with it?

just thought i would try to help

Jackyboy

 

[llwyd]

I would use the tripple rad for the CPU and single GPU, then use the two singles to cool the motherboard. Scrap the HDD cooling, less than pointless in an airated rig and will hamper performance of the loop. And why are you buying a block for your southbridge

Use the DDC 10w for the motherboard and the D4 for the main loop.

becuase im doing cpu, gpu (8800ultra!!), physX, NB, SB, and 2x Mosfets, then into a Thermochill 120.3 radiator. and ive asked alot of people and they said the one loop will be fine

I would strongly advise against that... Besides the heat dump being too high, you seem to be forgetting the strain that will be putting on the pump. It plain wont take it. He should stick with his two loop idea if hes going to run all those blocks

 

[Pat123]

Yeh ide agree, Stick with the two loop idea.. best performance. The triple could handle a E6300 and 1950XTX easy.

 

[WinMXer]

Thank you for the helpful input guys.

I'm definitely going to stick with two loops, as Llwyd stated, either pump would struggle to push through that much total restriction, as well as the total heat dump would probably exceed the cooling capacity of the single 360mm rad.

I've chosen to cool all of those components just because i've got all the kit/blocks here to do so, hence why i've decided to cool the southbridge & the HDD's. If I really wanted to I might have even added the RAM sticks in to the loop too, but I don't want to bother removing the epoxied heatsinks from these Corsair Dominators.

Instead of using the D4 I will be using a 10W DDC & an 18W DDC, each with their own XSPC res top (those res's look the nutts). So I was thinking:

2x 120mm rads to cool the CPU & HDD's + 10W DDC

1x 360 rad to cool the GPU('s) & motherboard + 18W DDC

Given this change in the choice of pumps do you think that would be a good way to tackle it or would there be a better way?

 

[llwyd]

CPU and GPU on 360 and 18W DDC, motherboard and HDD on dual 120s and 10W DDC

 

[WinMXer]

Cheers Llwyd.

Wondering, do you not think the 18W would be better for the mobo/hdd loop as there's more blocks = more restriction?

 

[llwyd]

Yea but HDD and Motherboard are of the lowest priority, so put the higher performance pump where it will actually be of use to your clocking - rather than using its performance to cool two things that dont _need_ watercooling.

 

[WinMXer]

Good point!

OK, so i'll plumb the 18W DDC, CPU & VGA to the 360mm, leaving the 10W DDC & 2x 120mm rads to take care of the rest.

Do you think there's enough capacity left in the 360mm to take on a second x1950xtx?

Hopefully i'll have this finished by the weekend so will post pics as soon as.

Cheers for the help guys.

 

[llwyd]

Good point!

OK, so i'll plumb the 18W DDC, CPU & VGA to the 360mm, leaving the 10W DDC & 2x 120mm rads to take care of the rest.

Do you think there's enough capacity left in the 360mm to take on a second x1950xtx?

Hopefully i'll have this finished by the weekend so will post pics as soon as.

Cheers for the help guys.

Yea it would cope ok providing the fans are good. I wouldnt expect you to be able to clock them to the limit though