Fan Adaptors

[Intraveinous]

K... here is my basic situation.
I bought a Zalman CNPS-5000+ (Copper one) for a customer who ended up backing out on the deal. I need to cool a 1.4Ghz processor, @ Stock ( :( ), and thats the only thing I have around. I'm getting pretty damn high temps with it right now tho... It has the stock Zalman 60mm on it now which I think makes 21CFM in normal mode, but correct me if I'm wrong. Anyway, I'd really rather not put a Delta 38CFM on it because of my aversion to the noise, but I need better cooling. The Zalman has quite a shroud on it, and I've had (very marginally) better results with the fan sucking through the heatsink. I've been thinking about putting a fan adaptor on it and putting an 80mm Sunon or Panaflow sucking out (eliminating most of the issues of fan adaptors).
Am I thinking correctly that I won't have the problems with deadspots etc that people have reported with fan adaptors in the past if I have the fan sucking up through? Also, anyone have good links for nice 60-80, 60-92 or 60-120 fan adaptors?
Thanks a lot
John

[Intraveinous]

Bump
Come on people.. :D
I need links other than plycon if at all possible...
Peace
John

[Random Nonsense]

Hi, well i know a bit about stuff like this.... setting it to pull air up throo the HS would get rid of the dead spot i think, and the airflow should be just as high.... u will have a diverging duct set up behind the fan which will increase the pressure behind the fan, but this shouldnt be a problem..... in fact, it should aid in pushing the air through!

[bdf24]

You can order an 80mm to 60mm fan adapter from for $15.00 from here.

http://www.1coolpc.com

I have a "Mighty Machine" which I purchaced from there. It's an SK-6 with the adapter with an 80mm sunon fan on it. I havent tried turning the fan around to suck instead of blow though. I thought about it but havent gotten around to it yet. I could'nt even tell you the actual temps of the cpu with cooler. I've got an Asus A7A 266 and temps are way to high to be accurate.

[William]

i would try to rig something up with an 80mm fan blowing on the heatsink. The Zalman is good, if it gets enough airflow. I think a good 80mm fan would do wonders.

BDF24, Asusprobe reports temps about 5-10C too high usually in the 8-10C area though. That should give you a better idea!

[peppy]

ahh here this has a whole buncha adapters, u should get a thermoengine with deltathough, a deltas not that noisey
http://bestbyte.net/Category.cfm?CategoryID=18&Keyword=

[ThePanda]

Originally posted by Random Nonsense
Hi, well i know a bit about stuff like this.... setting it to pull air up throo the HS would get rid of the dead spot i think, and the airflow should be just as high.... u will have a diverging duct set up behind the fan which will increase the pressure behind the fan, but this shouldnt be a problem..... in fact, it should aid in pushing the air through!

Can you or someone else please explain this part a little more?: "u will have a diverging duct set up behind the fan which will increase the pressure behind the fan." What is a diverging duct?

[chaosdriven]

Originally posted by William
i would try to rig something up with an 80mm fan blowing on the heatsink. The Zalman is good, if it gets enough airflow. I think a good 80mm fan would do wonders.

BDF24, Asusprobe reports temps about 5-10C too high usually in the 8-10C area though. That should give you a better idea!

Or a 120mm Sunon....

Since I've put that one in the configuration shown I have had no heat problems, in fact the load temp seldom if ever is above the idle temp.

[Random Nonsense]

ok when using a fan adaptor it changes from one size to another, if this is larger to smaller and a fan blowing IN to it, you get a CONverging duct, this will decrease pressure of the air flowing through it but decrease the pressure (although it is still a higher pressure than ambient) if the fan now pulls air through this sam adaptor, the effect is reversed as you now have a divergeant duct, which loweres velocity but increases pressure (i THINK this pressure increase may actually make up for lower air velocity) this effect is not all that noticeable on this scale though.

Reason i know this stuff is im doing an aero-engineering course at college, we learn a fair bit about aerodynamics, should also start some thermodynamics this term......