Pro/Forums - View Single Post - How much pump is enough? How much is too much?

Cathar · 11-05-2004, 07:31 AM

Buzz, you have the PQ curve for the DDC at 13.2v.

Somewhat different, and lower, at 12v where the block tops out at less than 6LPM, and peak pressure is ~20% lower.

Using the 13.2v PQ curve is fine, but be aware that it is a non-standard voltage in PC's and must be achieved through an externally powered means.

I always found it somewhat odd that the DDC was "originally designed for PC cooling", yet somewhat misleadingly all the PQ curves and values reported are at its maximum 13.2v level.

Still, even if the DDC is the equal of the Eheim 1250, that still leaves a fair amount performance gain to be achieved through the use of a stronger pump for blocks.

11-05-2004, 07:31 AM	#33
Cathar Thermophile Join Date: Sep 2002 Location: Melbourne, Australia Posts: 2,538	Buzz, you have the PQ curve for the DDC at 13.2v. Somewhat different, and lower, at 12v where the block tops out at less than 6LPM, and peak pressure is ~20% lower. Using the 13.2v PQ curve is fine, but be aware that it is a non-standard voltage in PC's and must be achieved through an externally powered means. I always found it somewhat odd that the DDC was "originally designed for PC cooling", yet somewhat misleadingly all the PQ curves and values reported are at its maximum 13.2v level. Still, even if the DDC is the equal of the Eheim 1250, that still leaves a fair amount performance gain to be achieved through the use of a stronger pump for blocks. Last edited by Cathar; 11-05-2004 at 07:37 AM.