Pro/Forums - View Single Post

pHaestus · 03-11-2002, 10:07 AM

I am pretty sure that Joe uses 3/8" tubing and fittings for his testing.

I highly doubt that the gemini blocks need something like 5 GPM for optimum performance. I also am skeptical that any watercooling setup that is in common use will generate 5 GPM. My system (a mix of 5/8" and 1/2" fittings and a heatercore and an Eheim 1250) generates around 1.2-1.4 GPM depending on the block chosen. That is always past the sweet spot of the waterblocks I have tested, so higher flows than that will only lower the efficiency of the radiator. The gemini looks like another spiral channel block to me, so it should perform similarly to the Maze2 or the spiral with respect to flow I would think. Super high flow rates might be useful if you have a block like the swiftech and are trying to move to the turbulent regime, but for a block like the gemini truly turbulent flow isn't possible anyway.

You should always pay close attention to the previous work of someone before deciding whether to take their results for water cooling tests as gospel. Go look at some of Hoot's recent heatsink reviews at overclockers.

03-11-2002, 10:07 AM	#124
pHaestus Big Player Making Big Money Join Date: Aug 2001 Location: irc.lostgeek.com #procooling.com Posts: 4,782	I am pretty sure that Joe uses 3/8" tubing and fittings for his testing. I highly doubt that the gemini blocks need something like 5 GPM for optimum performance. I also am skeptical that any watercooling setup that is in common use will generate 5 GPM. My system (a mix of 5/8" and 1/2" fittings and a heatercore and an Eheim 1250) generates around 1.2-1.4 GPM depending on the block chosen. That is always past the sweet spot of the waterblocks I have tested, so higher flows than that will only lower the efficiency of the radiator. The gemini looks like another spiral channel block to me, so it should perform similarly to the Maze2 or the spiral with respect to flow I would think. Super high flow rates might be useful if you have a block like the swiftech and are trying to move to the turbulent regime, but for a block like the gemini truly turbulent flow isn't possible anyway. You should always pay close attention to the previous work of someone before deciding whether to take their results for water cooling tests as gospel. Go look at some of Hoot's recent heatsink reviews at overclockers.