The bird looks pissed off having to wait for his drink. LOL

https://heatst.com/life/zoo-sues-ad-firm-for-using-their-raccoon-in-an-erotic-and-amoral-commercial/

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When properly designed and implemented, water cooling is unstoppable.
I have been using it for years, without leaks. My system is made up of two separate cooling loops.
One is for both GPU's, and consists of 2, four 140 mm fan radiators. Each GPU loop is cooled with a radiator just before it hits the GPU.

The second is the CPU cooler, which runs through a 1/2 hp aquarium chiller. My current fluid temp is set for 50°F, which means with a 4.4 GHz clock speed, my CPU temps are only 49°C. My GPU's, massively overclocked, never get above 60°C. Right now, they are less than 55°C. I am ramping up for the latest challenge.

These are old GPU's, but at some point I will modernize them, but will keep the same cooling system.
Because of the fans and chiller, this is not a silent system, but it is impervious to overheating.

Steve

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Warning, addicted to SETI crunching!
Crunching as a member of GPU Users Group.
GPUUG Website

Do you use the pump to move the water or just gravity heat?

Do you use the pump to move the water or just gravity heat?

I use two separate 10 watt pumps. One for each loop. Any greater than 10 watts, generates heat for the loop.
The fans are set to pull air through the radiator. Pushing air adds the fan heat. It's all engineering.

Steve

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Warning, addicted to SETI crunching!
Crunching as a member of GPU Users Group.
GPUUG Website

Do you use the pump to move the water or just gravity heat?

I use two separate 10 watt pumps. One for each loop. Any greater than 10 watts, generates heat for the loop.
The fans are set to pull air through the radiator. Pushing air adds the fan heat. It's all engineering.

Steve

Most folks.......or maybe not as many as I may suppose, would know that simple convection could not possible draw enough fluid through the hoses to make a dent.

I love engineering.....all part of the fun.
Fans in or fans out? LOL.
All sides off in my case. Or cases, as it may be.

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"Time is simply the mechanism that keeps everything from happening all at once."

The trick, is to make the coolant stay in the cooling region as long as possible, but keep it in the heating region as short as possible. That way more heat is dispersed than collected. It's all physics.

Steve

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Warning, addicted to SETI crunching!
Crunching as a member of GPU Users Group.
GPUUG Website

The trick, is to make the coolant stay in the cooling region as long as possible, but keep it in the heating region as short as possible. That way more heat is dispersed than collected. It's all physics.

Steve

Of course equilibrium is reached. The greater the cooling surface, the lower the resultant temperature.

Steve

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Warning, addicted to SETI crunching!
Crunching as a member of GPU Users Group.
GPUUG Website

The trick, is to make the coolant stay in the cooling region as long as possible, but keep it in the heating region as short as possible. That way more heat is dispersed than collected. It's all physics.

Steve

So, are you trying to tell me that sometimes slower coolant flow is actually better than running it through as fast as possible? I have a reason for asking.

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"Time is simply the mechanism that keeps everything from happening all at once."

Yes. Running it slower keeps it in the radiators longer, but it quickly exits the GPU's. With the chiller CPU loop, the added electricity and size of the chiller tips the balance.
I started with a much stronger pump, and learned that too much power, just added heat. Slow down the coolant flow, but don't stop it. Don't let the heat from the pump add to the coolant temperature.

Steve

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Warning, addicted to SETI crunching!
Crunching as a member of GPU Users Group.
GPUUG Website

Yes. Running it slower keeps it in the radiators longer, but it quickly exits the GPU's. With the chiller CPU loop, the added electricity and size of the chiller tips the balance.
I started with a much stronger pump, and learned that too much power, just added heat. Slow down the coolant flow, but don't stop it. Don't let the heat from the pump add to the coolant temperature.

Steve

Yes, you want it to be in the cold side long enough to absorb the heat, but not so long that there is a big swing from one side of the chip to the other. You want it in the hot radiator long enough to cool it all the way down to room or if you have a chiller lower. If you are a real engineering type you might have different tubing size in those parts to help get the coolant flow properly balanced. In any case if you run the coolant too fast, the coolant won't get fully cold out of the hot radiator so when it tries to cool the chip it has less capacity to soak up the heat.

It is almost the same thing as a air conditioner loop, but there the coolant undergoes a phase change and there is usually a pressure regulator in the loop to meter the flow and help prevent an ice up. However if the system is either under or overcharged the regulator loses the ability to keep things in balance and too much or not enough coolant flows in the loop.

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My problem is I'm running 4 cpu's and I wanted to cut back at night to maybe 2 so I programed it in but SETI doesn't seem to do it. I think I got it right but maybe someone can give me some ideas to make it work?

I remember Flipper.
http://www.dailymotion.com/video/x27gz8j_flipper-1963-official-trailer-chuck-connors-luke-halpin-movie-hd_shortfilms

It was also a TV show, though I'm not sure if Chuck was in the show.
Chuck Conners was not in the 1964 show.
https://en.wikipedia.org/wiki/Flipper_%281964_TV_series%29

Yes:)
Martin Sheen was in the cast in the TV show.

UTIs and your other, related, health problems can all cause weight loss by increasing your metabolic rate, as can taking increased doses of painkillers,antibiotics. And even a small change in diet, such as the change in the type of sandwich ham will have an impact, over time, on your weight.

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Bob Smith
Member of Seti PIPPS (Pluto is a Planet Protest Society)
Somewhere in the (un)known Universe?

It was also a TV show, though I'm not sure if Chuck was in the show.
Chuck Conners was not in the 1964 show.
https://en.wikipedia.org/wiki/Flipper_%281964_TV_series%29

Yes:)
Martin Sheen was in the cast in the TV show.

My kids watched it every week.

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Member of the People Encouraging Niceness In Society club.

I feed the bees every winter. About two weeks ago I was feeding them and I went "live" on Facebook. The
feeder went empty and the bees got aggressive. I got stung twice - once on the cheek (face) and once on my
forehead. I don't hold it against them, though. I was too close at a bad time. I love bees

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~Sue~

Stung on your (face) cheek. Ouch.
Well....I have been stung by a wasp on the cheek. Not my face though. It was the crease line at my cheek and leg.

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