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fhorst · 12-09-2003, 05:00 PM

Thanks for the detailed reply!

A bit of explanation is in place....

I'm working on 4 things:
1. Silent
2. Get the water temps as close to ambient as possible
3. Water-cool all that needs a heat sink
4. "Low" power consumption

1. The silent part is covered by the use of the Blower. It runs at 4v @ 3A, and is complete silent, with a decent amount of airflow. Good part is that it is made for this type of job.
Even 4 PAPST fans at 7v won’t give the same amount of airflow in this restricted setup.
The rest is taken care of with the use of my Nexus PSU (20dba) and the 2 MCP600.
The Iwaki pump’s seem to make quite some noise!

2. My idea is that the cooling loop will start with a split at the top two rads, to make them less restrictive. They are the “last” to receive air, and will receive the heated water first.
Those two will cool the water a lot, but not to ambient temps. After those 2 rads, the split will be combined again, and go via the motor rad to the LADA rad. As the LADA rad will suck in fresh air, which will be the coldest place, and get the water temps as close to ambient as possible.
As far as I know, there are 3 ways to get more heat dissipated from radiators (in general):
1. more cooling surface
2. higher airflow (= more noise)
3. higher water velocity (= more restrictive)
After testing with one LARGE rad (20x40x5 cm) and several other setups, this is the best way to go to get the temps as low as possible. My motor rad is made of copper.

3. To get a stable OC, I must get the temps of the mosfets down. Hot mosfets and coils give fluctuations in the CPU voltage. Running at 1ghz fzb (4x 250 Mhz) is “normal” for me. I want to push it to 285, getting my CPU at 4Ghz.
I want to get as much heat out of my system, so the HDD’s are water cooled. This is also the reason why I will cool the backside of my CPU with a waterblock. All the heat goes into the water. That’s why I want to split the loops!

4. The blower and 2 MCP600 won’t cost me much power. In the Netherlands where I live, power is expensive! 100 watts on a year basis will cost me 220 Euros (I run 24/7)
This makes the power consumption important.

I hopes this clarifies it a bit.

12-09-2003, 05:00 PM	#7
fhorst Cooling Savant Join Date: Oct 2003 Location: Almere, The Netherlands (Europe) Posts: 262	Thanks for the detailed reply! A bit of explanation is in place.... I'm working on 4 things: 1. Silent 2. Get the water temps as close to ambient as possible 3. Water-cool all that needs a heat sink 4. "Low" power consumption 1. The silent part is covered by the use of the Blower. It runs at 4v @ 3A, and is complete silent, with a decent amount of airflow. Good part is that it is made for this type of job. Even 4 PAPST fans at 7v won’t give the same amount of airflow in this restricted setup. The rest is taken care of with the use of my Nexus PSU (20dba) and the 2 MCP600. The Iwaki pump’s seem to make quite some noise! 2. My idea is that the cooling loop will start with a split at the top two rads, to make them less restrictive. They are the “last” to receive air, and will receive the heated water first. Those two will cool the water a lot, but not to ambient temps. After those 2 rads, the split will be combined again, and go via the motor rad to the LADA rad. As the LADA rad will suck in fresh air, which will be the coldest place, and get the water temps as close to ambient as possible. As far as I know, there are 3 ways to get more heat dissipated from radiators (in general): 1. more cooling surface 2. higher airflow (= more noise) 3. higher water velocity (= more restrictive) After testing with one LARGE rad (20x40x5 cm) and several other setups, this is the best way to go to get the temps as low as possible. My motor rad is made of copper. 3. To get a stable OC, I must get the temps of the mosfets down. Hot mosfets and coils give fluctuations in the CPU voltage. Running at 1ghz fzb (4x 250 Mhz) is “normal” for me. I want to push it to 285, getting my CPU at 4Ghz. I want to get as much heat out of my system, so the HDD’s are water cooled. This is also the reason why I will cool the backside of my CPU with a waterblock. All the heat goes into the water. That’s why I want to split the loops! 4. The blower and 2 MCP600 won’t cost me much power. In the Netherlands where I live, power is expensive! 100 watts on a year basis will cost me 220 Euros (I run 24/7) This makes the power consumption important. I hopes this clarifies it a bit. __________________ If it get's hot, it needs to be watercooled!