review Zalman CNPS 7000-alcu vs 7000-cu

T ter Berg · Post by **T ter Berg** » Sun Apr 27, 2003 2:48 am

Hi,

Here a review on Zalmans CNPS 7000-alcu in comparison with the 7000-cu:

http://www.lostcircuits.com/advice/zalman_cnps7000alcu/

their conclusion: ' Bimetal Rulez'..

greetings,
Timo

Rod M · Post by **Rod M** » Sun Apr 27, 2003 6:48 am

interesting review and results,

still the "cu" is outselling the "AlCu" and I dont see that changing,

powergyoza · Post by **powergyoza** » Sun Apr 27, 2003 11:39 am

That's really puzzling how ~300g less of a HS can cool a CPU more. I wonder if it'd be the same with Folding and/or CPUBurn?

ez2remember · Post by **ez2remember** » Tue Apr 29, 2003 3:02 am

They mentioned the copper version had a defective spirng and they tried to rectify the spring by increasing the tension. With the copper version being heavier it could of had a 'loose' contact when hung on the motherboard.

I doubt the Hybrid version performs better than the all copper version. It's a fact that copper conducts heat better than aluminium. I read other reviews where they had the copper version edging ahead of the AlCu but only about 2oC.

GamingGod · Post by **GamingGod** » Tue Apr 29, 2003 9:24 am

Ive seen a couple of reviews that say the all copper version is between 4-6degrees cooler.

jamoore9 · Post by **jamoore9** » Tue Apr 29, 2003 9:36 am

The difference in that review is probably based on the fan, but I couldn't say for sure.

At any rate, MikeC already ran both HS through their paces and the CU kicked the AlCu to the curb. His methodology is the best I've seen, since he tests each HS with the same fan at 3 voltages. The results are much more reliable.

http://www.silentpcreview.com/modules.p ... =57&page=1

But, then, there's always the brand new CNPS7000Cu and its little sister, 7000AlCu! I'd love to see MikeC put these two to the test as well!

http://www.endpcnoise.com/cgi-bin/e/cnps7000-cu.html
http://www.endpcnoise.com/cgi-bin/e/cnps7000-alcu.html

falke · Post by **falke** » Tue Apr 29, 2003 1:12 pm

jamoore9 wrote: At any rate, MikeC already ran both HS through their paces and the CU kicked the AlCu to the curb. His methodology is the best I've seen, since he tests each HS with the same fan at 3 voltages. The results are much more reliable.

Mike reviewed the 6500's not the 7000's that T ter Berg is refering to.

Empty17 · Post by **Empty17** » Tue Apr 29, 2003 5:08 pm

I have the all copper Zalman 7000. It installed quite easily. I can move it slightly if I turn it. Probably a millimeter or two, but it seems like it's on okay. I e-mailed Zalman about it, and a guy named Don told me as long as it's over the CPU, it should be fine. Even if it can move slightly. I don't know wether to take his word or not. The temps on my rig seemed okay, but since my hard drive broke, I did not have long to test it.
I was going to get another for a friend's rig, maybe I'll get the bimetal one instead.
The copper one is a beautiful heatsink, had no trouble fitting on my abit max 2 ver. 2 board, and the fan is QUIET!

jamoore9 · Post by **jamoore9** » Wed Apr 30, 2003 8:42 am

falke wrote:
jamoore9 wrote: At any rate, MikeC already ran both HS through their paces and the CU kicked the AlCu to the curb. His methodology is the best I've seen, since he tests each HS with the same fan at 3 voltages. The results are much more reliable.
Mike reviewed the 6500's not the 7000's that T ter Berg is refering to.

whoops. my bad.

sorenbro · Post by **sorenbro** » Tue May 06, 2003 10:39 am

Ofcourse the cu is better than the alcu, and every review I have read have come to this conclusion. I have the 7000cu myself and I'm most impressed, especially with the noise level, which is VERY low.