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should I add another 3 fans on the other side of the radiator - Page 2

post #11 of 16
With these small temps mentioned above, your best bet would be to cool the ambient temperature of the area the PC is in.
post #12 of 16
Quote:
Originally Posted by Capt Proton View Post

Sorry, but your whole theory does not sit well with me. Unless your water temp is at ambient, increasing the CFM must result in a temp drop, although it may be so small as not to be measurable with standard temp probes. Heat will always move from hotter to cooler, it is only the rate with which it moves that changes. Increasing the delta between air temp, actual or due to CFM, increases the rate of heat exchange. Increasing the CFM results in cooler air temp around the rad fins, therefore increasing the exchange rate. If the exchange rate drops, the temp drops.

You are talking about the laws of thermal dynamics and are correct. However, the fractions of a degree differences in cooling has no relevance to the ability to cool overclocked hardware silently. Lets just say it lowered the water temp. by three degrees C. Big deal, if your CPU has a TJmax of 99C and it is running at 80C with your current loop dropping your water by 3C doesn't allow you to overclock more or make your system run any better. It is only relevant in ePeen.

I was trying to answer a PC water cooling question, not a theoretical thermal dynamic energy transfer question from an exam. My point is still valid about matching radiator capacity to the thermal load expected for the rig and that adding 3 more fans will have almost no value for the OP.
post #13 of 16
In my experience, setting up push/pull has allowed me to reduce overall fan RPM, reducing noise. The only thing I can hear in my system is the PSU.
post #14 of 16
Quote:
Originally Posted by zeusthunder369 View Post

In my experience, setting up push/pull has allowed me to reduce overall fan RPM, reducing noise. The only thing I can hear in my system is the PSU.

It depends on the radiator and fans but of course. 6 fans running at say 800 RPM will move more air than 3 of the same fans at 1400 RPM. The question was about cooling performance, not noise.
post #15 of 16
Quote:
Originally Posted by RatDog View Post

It depends on the radiator and fans but of course. 6 fans running at say 800 RPM will move more air than 3 of the same fans at 1400 RPM. The question was about cooling performance, not noise.

I may have got lost in the thread, I thought it was about whether or not there is a benefit to adding 3 fans?
post #16 of 16
The OP said increasing his fans from 7v - 12v did not improve cooling performance and wondered why as well as wondered if adding 3 more fans would help. thumb.gif Your post was accurate it just wasn't the question biggrin.gif.
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