- Joined
- Mar 30, 2005
- Location
- Wells, England
I've read through the entire thread on the PA160 design at procooling, and the performance data/reviews by Cathar at overclockers.com.au and I now want a PA160, silence for me is important, and I think with this setup my goal can be reached. I would have only 3x120mm Low Speed fans going, which would be great.
I dont really understand the math on how to work out if the PA160 is up to cooling my loop though.
I am trying to apply that to my setup. I am using a Swiftech MCP655 at 12V.
I couldnt find the performance data on this pump. I could have sworn Cathar did some testing. I shall be using a 120mm Panaflo L1A which has 68.9CFM at 30dBA if specs are to be believed. I also may be using a San Ace 120mm which has aroun 103CFM at 39dBA. But these both undervolt well and I will be using a Rheobus.
I intend to be cooling a Athlon 64 Venice @ 2.7Ghz (assuming it will reach that speed) I am guessing this will give out about 90W of heat. Ofcourse correct me if I am way out. I am using a Swiftech 6002-64 on this.
I will also be cooling the chipset on the DFI Lanparty NF4 Motherboard using the Chipset block from DD which should be released within a couple of weeks.
I want to cool my 6800GT which will be overclocked to Ultra speeds. (I know my card can do it) GPU Block is a Maze 4 Low Profile. I think this will give out aroun 60W heat? and the Chipset 20W maybe.
All stuff has 1/2OD barbs and I am using 7/16" ID tubing.
Average room temperature is 20C. I am guessing. The room however remains cold. (Subjective I know, but you get the idea)
I am not aiming for ultra low temps, I want my stuff to be stable at the speeds above. Will the PA160 be up to the Job? Please correct me on any of my guessings. I need help using that formula, but for that I need better figures.
I dont really understand the math on how to work out if the PA160 is up to cooling my loop though.
Cathar at overclocker.com.au said:Most important number to understand here is the C/W value, or Celcius per Watt.
This value tells you what the temperature of the water will be coming out of the radiator in a closed loop with a certain heat load, with that heat load measured in watts. This temperature value is relative to the temperature of the air flowing in to the radiator. The value is only true at equilibrium, meaning that the water has reached a stable temperature.
Let's assume that you have a water-cooling loop cooling a CPU that's putting 80W of heat into the cooling loop.
Let's say you're using the PA160.1 with the Panaflo L1A @ 12v on it, having a C/W of 0.031 as measured above.
This means that the water coming out of the radiator will stabilise at 80W x 0.031 C/W = 2.48C above the temperature of the air that's flowing into the radiator (most usually the room temperature or "ambient" temperature).
So if the room temperature is a comfortable 21.5C, then the water temperature will stabilise at 21.5 + 2.48 =~ 24.0C with our 80W CPU heat load.
If we instead stuck the quiet Tricod fan on it at 12v, the water temperature rise would now be 80W x 0.044 C/W = 3.52C, or in a 21.5C room, the water temperature would stabilise at 21.5 + 3.52 =~ 25.0C.
i.e. by going from the rather noisy Panaflo L1A to the quiet Tricod, our CPU would be 25.0 - 24.0 = 1.0C warmer (because the water that leaves the radiator and flows into the waterblock is now 1C warmer).
I am trying to apply that to my setup. I am using a Swiftech MCP655 at 12V.
I couldnt find the performance data on this pump. I could have sworn Cathar did some testing. I shall be using a 120mm Panaflo L1A which has 68.9CFM at 30dBA if specs are to be believed. I also may be using a San Ace 120mm which has aroun 103CFM at 39dBA. But these both undervolt well and I will be using a Rheobus.
I intend to be cooling a Athlon 64 Venice @ 2.7Ghz (assuming it will reach that speed) I am guessing this will give out about 90W of heat. Ofcourse correct me if I am way out. I am using a Swiftech 6002-64 on this.
I will also be cooling the chipset on the DFI Lanparty NF4 Motherboard using the Chipset block from DD which should be released within a couple of weeks.
I want to cool my 6800GT which will be overclocked to Ultra speeds. (I know my card can do it) GPU Block is a Maze 4 Low Profile. I think this will give out aroun 60W heat? and the Chipset 20W maybe.
All stuff has 1/2OD barbs and I am using 7/16" ID tubing.
Average room temperature is 20C. I am guessing. The room however remains cold. (Subjective I know, but you get the idea)
I am not aiming for ultra low temps, I want my stuff to be stable at the speeds above. Will the PA160 be up to the Job? Please correct me on any of my guessings. I need help using that formula, but for that I need better figures.