watercooling order

Mr Mister · 19 Mar 2006 at 13:56

just about to water cool my second pc but want to know the best order for the bits to go in.
Ive got
- cpu block
- gpu block with 172w pelt
- Pump
- Single fan rad in the roof of the case
- T line with fill port

Ive done watercooling before but dont know whether i used the correct order of things.

Thanks

quadboi · 19 Mar 2006 at 14:20

How did you do it before

Kesnel · 19 Mar 2006 at 14:26

I think a 120.1 rad is going to struggle with a CPU, GPU and pelt on it. I'd really recommend a separate loops for the graphics card and pelt.

Mr Mister · 19 Mar 2006 at 14:29

Kesnel said:
I think a 120.1 rad is going to struggle with a CPU, GPU and pelt on it. I'd really recommend a separate loops for the graphics card and pelt.

Lol yea i know its gonna be a bit of an experiment. But ive got a decent pump (aquaextreme 50z) so the fast flow should mean the water doesnt heat up too much too quickly. Also ive got a panaflow m1 on the rad.

MikeTimbers · 19 Mar 2006 at 14:29

Got to agree with Kesnel here. A 120.1 (or any rad with only a single 120mm fan) is going to struggle. Have you calculated the heat outputs? You don't specify the cpu or gpu but the 172W pelt alone is going to put out some serious heat so that needs to go after the cpu but other than that the order really isn't important although I always like to put the T just before the pump. Go for ease of routing as that least restricts the flow rate but I would really think about getting a much bigger radiator.

Even with a good pump, the point is that if the radiator can't remove as much heat as is being put in, then the water will heat up until equilibrium is reached; that will be at a much higher water temperature than with a larger rad.

Mr Mister · 19 Mar 2006 at 14:30

sjohal2006 said:
How did you do it before

Before it was pump-->cpu-->gpu-->rad-->res-->pump

Mr Mister · 19 Mar 2006 at 14:32

MikeTimbers said:
Got to agree with Kesnel here. A 120.1 (or any rad with only a single 120mm fan) is going to struggle. Have you calculated the heat outputs? You don't specify the cpu or gpu but the 172W pelt alone is going to put out some serious heat so that needs to go after the cpu but other than that the order really isn't important although I always like to put the T just before the pump. Go for ease of routing as that least restricts the flow rate but I would really think about getting a much bigger radiator.

Ok im looking at pump-->rad-->cpu-->gpu-->tline-->pump.

The cpu is an opty 144 at about 3ghz and the 172pelt will run off the main psu so only 120w @12v.

Jokester · 19 Mar 2006 at 14:33

The order makes no difference.

Jokester

MikeTimbers · 19 Mar 2006 at 14:36

Jokester said:
The order makes no difference.

Jokester

Not true when there's a blazing heat source like a pelted gpu. The water leaving that gpu will be a fair bit warmer than the water going in so it would be wise to have the cpu block before that little fire.

Jokester · 19 Mar 2006 at 14:52

MikeTimbers said:
Not true when there's a blazing heat source like a pelted gpu. The water leaving that gpu will be a fair bit warmer than the water going in so it would be wise to have the cpu block before that little fire.

It won't be, the difference in water temperature between water entering my rad and leaving is at most a degree in the worst case (my temp sensors struggle to tell the difference in temp because their so close).

That's with an overclocked X1900XT and a 172W TEC, so the heat load is of the order of 400W.

Jokester

mcmad · 19 Mar 2006 at 14:58

order makes no odds.

Heofz · 19 Mar 2006 at 17:14

Jokester said:
It won't be, the difference in water temperature between water entering my rad and leaving is at most a degree in the worst case (my temp sensors struggle to tell the difference in temp because their so close).

That's with an overclocked X1900XT and a 172W TEC, so the heat load is of the order of 400W.

Jokester

Jokester can I ask you what your entire system specs consist of plz? including all your watercooling compenents

the 172W peltier, thats on the GPU?

MikeTimbers · 19 Mar 2006 at 17:18

Jokester said:
It won't be, the difference in water temperature between water entering my rad and leaving is at most a degree in the worst case (my temp sensors struggle to tell the difference in temp because their so close).

That's with an overclocked X1900XT and a 172W TEC, so the heat load is of the order of 400W.

Jokester

I stand corrected. I really thought that would have raised water temps between gpu-block inlet and outlet but I suppose if the flow-rate is good enough it still isn't picking up much heat per cc.

Jokester · 19 Mar 2006 at 17:21

The system with the TEC (GPU) in it is:-

FX57 @ 3.6GHz (Vapochill)
DFI LanParty UT NF4 SLI-D
1 GB Mushkin Redline
X1900XTX
Maze4-1 + 172W TEC
Meanwell 24V PSU
Ehiem 1260 pump
Thermochill HE120.3 + 6 120mm Vantec Stealths

Jokester

Heofz · 19 Mar 2006 at 22:50

Jokester said:
The system with the TEC (GPU) in it is:-
X1900XTX
Maze4-1 + 172W TEC

this 172W TEC, what temps does it reach? do you have to insulate from condensation etc?

P.S. Mister: sorry 4 hijack

Jokester · 19 Mar 2006 at 22:55

Depends on what it's cooling. On the X1900XT (plenty of heat) it just gets below zero. Lower power cards would go down to -20C.

Jokester

megatron · 19 Mar 2006 at 23:01

What is ** view on the memory having no airflow across it? Will it
a) be hotter since the stock cooler touches the memory.
b) be cooler since the gpu is not tranfering a lot of heat through the pcb?

and what about the mosfets?

Jokester · 19 Mar 2006 at 23:04

The memory doesn't need any cooling as such but I would always recommend having some sort of airflow (even if it's just good case flow) over the memory and the mosfets.

Jokester

ted34 · 20 Mar 2006 at 19:22

The little ram sinks can help solve that problem and normally help with the o/c

janesssssy · 20 Mar 2006 at 19:45

Ah stop talking about Pelts... Mr Mister let me know your opinions such as ease of use and temps etc... tell me how easy it is to turn the whole system on etc...

Dave