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New Dual-Pass Quad 80mm Rad From Koolance

post #1 of 42
Thread Starter 
was looking at some rad stuff and saw this looks pretty cool

decent price too $34.99+Shipping

http://www.performance-pcs.com/catal...ducts_id=22811





Quote:
Product Details:

Brazed aluminum louver fin heat exchanger used in RM2-4U Koolance rack mount systems. Includes four 80mm dual ball-bearing fans and 1/4" (6mm) ID nozzles. Double pass flow.

Radiator Specifiactions:

Model RM2-HX
Materials Aluminum
Tubing Size, ID 1/4" (6mm)
Product Dimensions
WxHxD (w/ Fans) 14.6" x 3.5" x 3" (37cm x 9cm x 8cm)
Product Weight 2 lbs (907g)


Fan Specifications:

* Dimensions: 80x80x25mm
* Type: Dual Ball-Bearing
* Rated Voltage: 12VDC
* Startup Voltage: 6V
* Current: 0.35A
* Speed: 3000RPM (max)
* Airflow: 42CFM (max)
* Noise: 28.61dBA (max)
down side is those damn 1/4" fittings >_> maybe somehow replace them? idk..
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post #2 of 42
you know better than to get aluminum
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post #3 of 42
Quote:
Originally Posted by darkninja420 View Post
down side is those damn 1/4" fittings >_> maybe somehow replace them? idk..
If the rad was optimized for 1/4", the channels may still be too restrictive.
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post #4 of 42
Problem is in the name of it, that dirty word beginning with K
    
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post #5 of 42
Quote:
Originally Posted by roningai View Post
you know better than to get aluminum
Lol, im actually building an all alu loop atm.
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post #6 of 42
Yeah an all aluminum loop wont have any corrosion problems...That 80mm rad is still probably really restrictive...

Aluminum isn't nearly as thermally conductive as copper but if you can get it cheap its still not to bad I guess..

Quote:
The following are the thermal conductivity values (W/mK) used in the calculations:
  • Aluminum: 220
  • Copper: 388
  • Silver: 418
  • Silver/Copper (Cusil) Alloy: 515

..Cold Plate Materials and Thickness
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post #7 of 42
The problem is that 90% of radiators out there aren't made of pure copper.

They're a mix of copper fins, brass tubing, and bonding agents with atrocious thermal conductivity.

Aluminum brazing is far more expensive than traditional brass/copper methods, which is one possible reason it's less popular.
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post #8 of 42
Oh yeah thats what the lame Koolance rep's want you to believe......You should read HW Labs response to their BS, if you haven't already.You do know they use a automotive rad testing facility to measure the Koolance heat dissipation with right? I run 100+ cfm fans but I would wimp out with the 500+cfm that they test their rads with....Doesn't matter to me, gold plated dog crap is still dog crap....Koolance Owned by Hw Labs, AGAIN!!! LoL
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post #9 of 42
That has fail written all over it. Invest at least $50 into your rad. You'll thank me later
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post #10 of 42
Quote:
Originally Posted by ira-k View Post
, gold plated dog crap is still dog crap....
Dont hold back Ira, how do you really feal about Koolance

that reminded me of this quote from [H]:

"Ultra hits rock bottom with a 750 watt PSU that claims NVIDIA SLI certification. Make a note to stay as far away from this flaming hunk of crap as you possibly can."
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