Archive Home arrow Reviews: arrow Notebook | Compact arrow Zalman ZM-NC3000U Notebook Cooler

Zalman ZM-NC3000U Notebook Cooler E-mail
Reviews - Featured Reviews: Notebook | Compact PC
Written by Steven Iglesias-Hearst   
Thursday, 15 July 2010
Table of Contents: Page Index
Zalman ZM-NC3000U Notebook Cooler
Closer Look: Zalman ZM-NC3000U
Zalman ZM-NC3000U Detailed Features
Testing and Results
Final Thoughts and Conclusion

Testing & Results

Testing Methodology

During the test procedure temperatures were monitored by CPUID Hardware Monitor 1.16. No specific stress test programs were used to raise temperatures as the laptop gets hot enough on its own, instead I decided upon running a popular MMORPG (Fly For Fun) to raise temperatures. For the first test the game was loaded and once the laptop was sufficiently warmed up the game was turned off and it was allowed to cool without any assistance to give a reference temperature, then the laptop was cooled with the Zalman ZM-NC3000U cooler on it's lowest fan speed setting until temperatures stabilized and finally cooled further by the Zalman ZM-NC3000U on it's highest fan speed setting. Tests were replicated three times for accuracy and an average result is represented in the first graph below.

For the second test the temperatures were taken while the laptop was in use (load temperatures). Once again the laptop was warmed up by running Fly For Fun and temperatures were taken under the following conditions 1) Laptop under load with no cooler, 2) Laptop under load with ZM-NC3000U cooling with fan on it's lowest speed setting, 3) Laptop under load with ZM-NC3000U cooling with fan on its highest speed setting. Tests were replicated three times for accuracy and an average result is represented in the second graph below.

We have also Included the results from the previously tested Zalman ZM-NC2500Plus notebook cooler for comparison purposes.

Test System

  • Laptop Model:Compaq Presario CQ61-110SA
  • System Memory: 3Gb PC2-6400
  • Processor:Pentium Dual Core T4200 @ 2.0Ghz
  • Disk Drive: WD Scorpio Blue 160 GB SATA
  • Operating System: Windows Vista Basic


During the test procedure the ambient room temperature was monitored and was between 27C and 28C for the entire duration of the tests. The temperatures in the graphs below are in degrees Celsius and represent the cooling capabilities of the Zalman ZM-NC3000U notebook cooler.


As you can see this particular laptop does get pretty hot while in use, after a session of gaming it was allowed to idle and the temperatures were monitored. The laptops internal cooling leaves a lot to be desired, the three temperature sensors on the CPU, Motherboard and HDD respectively were hovering at 56C ~ 57C. The Zalman ZM-NC3000U was Able to drop those temperatures quite considerably, knocking 22C off the CPU temperature, 15C off the Motherboard temperature and 13C off the HDD temperature. As was noticed before with the ZM-NC2500Plus, not much difference was seen between the high and low fan speed settings


In the second test the results are noticeably different, there is a clear difference between the results for high and low speed fan settings, and a definite improvement was seen with the use of the Zalman ZM-NC3000U notebook cooler. Temperatures were reduced by 12C on the CPU, 12C on the motherboard and 11C on the HDD, a nice even all round performance thanks to the location of the fan.

The Zalman ZM-NC3000U notebook cooler was able to reduce temperatures evenly across the range and has a slight edge 2 - 3 Degrees Celcius over its younger brother - the ZM-NC2500Plus, which wasn't able to cool the HDD as well as the other laptop components due to its rear intake design. The ZM-NC3000U is the clear winner here as its was not only able to cool more, but it was able to cool evenly too.



# General ClassificationFederico La Morgia 2010-07-20 23:27
not that you could place these products into one overall ranking so that at a stroke one can see what the product cools more a notebook?
Report Comment
# Thanks!Coli 2010-07-22 03:57
This is exactly what I needed!

I just ordered this and can't wait to get it :-)

Thank you so much for this very useful test, guys.
Report Comment
# Great reviewAl 2010-10-09 00:12
Very nice reviews of both Zalman's last NB coolers. I was really looking forward those two models, but didn't made my choice. As I'm also considering performance rather than noise nuisance, I will get the NC-3000 to remplace my NC-2000 :)
Thank you!
Report Comment
# Only bad thing...Anders 2010-11-16 07:12
Had mine for 2 weeks now. The only bad thing is that there is no "plate/surface" on the underbelly. By that I mean they should of made the surface rap around the whole product so you can have it on your lap, on even use it while in bed and not worry about blocking the fan.

So what I did, I bought a thin plexiglass plate and glued it underneath. So now I can use it on my lap, or while in bed under my cover and still use it and not blocking the fan!

Sure there are laptop cools that are built like I am asking, but they all have 2-3 small fans and thus resulting in high noise. Zalman is the only one I have found that uses one large fan!
Report Comment
# Sweet!rhon 2011-01-17 08:25
A very professional review. I really apreciate the face that considerable amount of homework was done to arrive at a conclusion instead of just drawing an inference based on hear say.

I just placed my order on Amazon. Before clickin 'Buy', I did some background reading myself and saw/read many reviews. This by far is the most comprehensive and detailed review.

Excellent review. Thank you!

Can't wait for mine to arrive :)
Report Comment
# AdviceNick 2011-01-19 10:48
Thanks for this excellent review. Only downside is that they used a 15.X" notebook rather than a 17" notebook. I'd say that iy should have been included because as a 17" notebook owner, this is really the only Zalman notebook cooler I can use (being 40cm wide, exactly the same as my notebook width).

Most 17" notebook users won't see as spectacular results as this review since the air is focused entirely on the centre of the notebook and there's a good chance that (like me) the intake fan(s) under the notebook are located towards the far sides next to or near a exhaust on the side/back of the notebook.

If anyone with a 17" notebook is in a similar situation I'd advise positioning the notebook so the rubber feet of the notebook sit on top of the rubber ridges on the surface of the cooler. The extra clearance should help the air being blown up to reach the intake fans more effectively (assuming they aren't right on top of the 220mm fan like the review notebook probably was).

Thanks again for this review, as Rhon said, it's a very professional article aside from the lack of 17" notebook as a comparison. My NC3000U should be arriving tomorrow so hopefully my theory to increase air flow to intake fans will bear fruit :)
Report Comment
# Zalman NC3000U = wonderfulValentin N 2011-05-17 10:05
This baby is the best you can get on the market with excellent cooling. It cools my hp pavilion tx2690eo. the temps were before 93-100 and it's 87-95. now I am also able to touch the under side of the laptop, the vga ports is now touchable.

I have tried others but nothing beats Zalaman when it comes to laptop cooling (cpu cooling, maybe; I don't own any cpu cooler from zalman). I wish the fan had higher rpm (you hardly hear it at full power) such as 1200rpm or so. I don't mind noise but that's me ^^

Zalman is a must even if it's more expensive.

Valentin N
Report Comment
# Increased noise level within one month of operationQwerty 2013-08-24 03:33
The cooler was perfectly silent in the beginning, but after some operation time the fan apparently started to touch some fixed part. Disassembling, spraying some WD-40 lubricant, and temporary putting a thin paper between fan and the rest in order to realign the fan helped to reduce the noise level to its initial state.
Report Comment

Comments have been disabled by the administrator.

Search Benchmark Reviews

Like Benchmark Reviews on FacebookFollow Benchmark Reviews on Twitter