Not sure what percentage of heat is being passed to the coolant with my Iwaki, but the casing will get super hot if no air is moving over it. So hot, I can only touch it for 3-6 seconds without having to take my hand off of it. When I put an 80mm fan blowing over it, it did not get that warm.
With my eheim 1250, if I had the cirquit pumping with no fans on the rad, the coolant would rise 3-5 degrees C. So there is quite a bit of heat being dumped into the cirquit.
That is why the MCP600 looks so appealing. At only 10 watts od power used, one would assume less heat dumped into the water. I do not know if the fact that it is DC changes anything though. Any ideas?
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My biggest concern about the pump being high volume is if in some way it will reduce the ability to cool the system because the water is passing too quickly through the radiator.
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The water cannot move too fast through the radiator. While it is true that at a certian point you get to diminishing returns by increasing flow past the knee of effeciency for a particular rad, with increased flow you will have a lower delta t on the coolant side of the rad. Now if you do not decrease the delta t on the air side ( read: more airflow through the rad), then the increased flow will do little to lower overall coolant temps. However that being said, the increased flow should help to make your blocks more effecient at getting energy into the water via your water blocks.
BrianW
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Water Cooled Inwin Q500 (Dual Rads: Rad1 = DTEK Pro Core | Rad2 = Blick Ice Estreme, Hydor L30, Dangerden Maze2, Bay Res Typhoon Reservoir, 1/2 " DD Tygon Thick Wall Hose).
Flow: Res, Pump, CPU watervlock, Y into both rads, both rads into res independently.
Athlon XP 1800+ (@ 1731 - 150mhz fsb.), on a Asus A7N266-c, and a Radeon 9000 *waiting for RMA'd Saphire 9800 ultra from Newegg)
Last edited by BrianW; 10-16-2003 at 08:19 PM.
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