Pro/Forums - View Single Post - Closed loop and water peltier cooled water?

CapnBry · 08-14-2001, 10:51 PM

I've got a TBird 1.33Ghz on an Abit KT7A-Raid.

I started experimenting with this about 2 or 3 weeks ago. I started by experimenting. I took a 4x4 watertight electrical enclosure and cut a hole in the top just not big enough for a heatsink bottom to fit through. I attached it with plumbers goop. Then I put the 80W peltier on, and strapped a huge (like 6x4) heatsink with a low speed 92mm fan. Filled with water, it got down to 40F in an hour. Good!

Then I fit some 3/8" barbed fittings in the side and attached it to my current H20 system. I ran the water from the current resivour (damn I can't spell that) up to the CPU, down to the radiator, then to the new peltier chiller.

With the system off, and the pump running, the water gets about 10F below ambient. I think this is because the radiator lets any coolness out just like it lets the heat out. With the system on, and running at full throttle, the temp gets up to ~130F (compared to about 150F earlier). The system runs at under 98F at idle.

Something about my temperatures. I think the sensor on my Abit is a big fubared, because with a Thermoengine with a Delta 7k, it would still get up to 150F under high load.

I've got two new peltiers on order, because I think I fried my current one when some neoprene melted inside of it (don't ask). I'll keep you guys posted if you want.

Cap'n Bry

08-14-2001, 10:51 PM	#7
CapnBry Cooling Neophyte Join Date: Aug 2001 Location: Way out there Posts: 1	I've got a TBird 1.33Ghz on an Abit KT7A-Raid. I started experimenting with this about 2 or 3 weeks ago. I started by experimenting. I took a 4x4 watertight electrical enclosure and cut a hole in the top just not big enough for a heatsink bottom to fit through. I attached it with plumbers goop. Then I put the 80W peltier on, and strapped a huge (like 6x4) heatsink with a low speed 92mm fan. Filled with water, it got down to 40F in an hour. Good! Then I fit some 3/8" barbed fittings in the side and attached it to my current H20 system. I ran the water from the current resivour (damn I can't spell that) up to the CPU, down to the radiator, then to the new peltier chiller. With the system off, and the pump running, the water gets about 10F below ambient. I think this is because the radiator lets any coolness out just like it lets the heat out. With the system on, and running at full throttle, the temp gets up to ~130F (compared to about 150F earlier). The system runs at under 98F at idle. Something about my temperatures. I think the sensor on my Abit is a big fubared, because with a Thermoengine with a Delta 7k, it would still get up to 150F under high load. I've got two new peltiers on order, because I think I fried my current one when some neoprene melted inside of it (don't ask). I'll keep you guys posted if you want. Cap'n Bry