Product Description
Zalman ZM-NC2000 Minimized Noise Notebook Cooler (Black)
List Price :
$63.99Price : $56.10
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Product Feature
- -- Aerodynamically-designed notebook cooler with minimized noise and enhanced user convenience.
- -- Sleek design incorporating a high quality 3mm thick aluminum panel with a fine curvature and great cooling performance.
- -- One-body design composed of different materials provides a sleek appearance.
- -- Premium aluminum treated with D.S.A. Surface Processing. * D.S.A.( Diamond Cutting, Sand Blasting, Anodizing)
- -- The Rubber Grip Strip prevents the notebook from sliding.
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67 of 67 people found the following review helpful.
Fantastic cooler
By Dana Moore
I just got my cooler today. I think it's awesome. For one, it fits my 17" laptop perfectly, and it doesn't scoot and slide. I had bought a flimsy one and the laptop just about slid off the table! This cooler is very sturdy and it looks slick to boot.
It's also at a good angle, and it has flip-up feet so if you want it a little higher, it will accommodate you. It has a little compartment for your USB cable to hide in as well.
Another thing: it's almost silent! I have the fans up full blast right now and it's barely making a peep. And it keeps my laptop very cool. I'm actually running World of Warcraft in the background (for the last 20 minutes or so) right now on max settings and the laptop fans have yet to kick on, just the cooler fan.
So yes, it may be pricey, but if you're going to long-term game on your laptop then I think it's a perfect investment for you.
I wish I could find something con for your consideration, but I honestly can't think of one!
110 of 119 people found the following review helpful.
Ecstatic... then bummed.
By Susan
First of all, this was by far the best notebook cooler I've ever used - for the short time it was used. I have a cheap and hot laptop, and with a small budget, I needed it to last. I tried a couple of other coolers, and they just didn't seem to help much.
So when I got this one, I was happy to find that my notebook stayed constantly cool with this cooler. UNFORTUNATELY, the fans in the cooler quit 43 days after purchasing it. Blue light still on, but no fans. I still use it just to set my laptop on, but it just doesn't cut it without the fans. My laptop is as hot as ever.
To make matters worse, I can't get any help from Zalman. I figured there must be a warranty or maybe some kind of fix for it, but after contacting them a few times, there has been no response. It's disappointing that they seem to talk about how great their products are, but don't stand behind them when they fail. I won't be buying another Zalman product.
138 of 153 people found the following review helpful.
Worthwhile Cooler
By Travis Pollard
DISCLAIMER: I am not a computer expert, I do not work for the company. I am a computational chemist and a graduate student at the University of Cincinnati. There are certainly more qualified people to discuss the technical details.
EDIT: Nov 9th, 2012... cleaned up and streamlined.
2012 Conclusion (to save you time)...
The unit continues to work every bit as well as it did on day 1. I've had this unit for approximately 3 years. Optimal cooling is to be expected for smaller laptops and if the vents in your machine are located towards your keyboard. This unit will cool your device though it is hard to predict exactly how much cooler it will run, etc. Good value, good performance. Also, might I suggest if the laptop is plugged in often, try removing the battery (unless you are just trying to charge it obviously). This removes a very large heat source from an area the Zalman struggles to cool.
Laptop models reviewed in my tests:
2007 purchased Gateway M685-E 17" screen, 4GB RAM and dual core processor (referred to hereafter as GTWY)
2010-11 purchased ASUS *model unknown* 17", 4GB RAM, dual core i3 processor (referred to hereafter as ASUS)
Typical use:
GTWY (toast!): internet, light gaming, audio recording, office use, ran Windows Vista from day 1
ASUS (still active!): internet, running quantum chemical calculations, coding, compiling code, running Linux Mint 13
Additional modifications:
GTWY: This laptop was undervolted at the time of the tests and thus ran significantly cooler.
ASUS: No modifications have been made, this laptop runs cooler than the GTWY as is.
Vent placement on laptops:
GTWY: 1 side vent, several vents on bottom of varying size located near the center and up towards the keyboard.
ASUS: 1 side vent, vents distributed along bottom towards the battery compartment (this arrangement is NOT as optimal for this product).
Comments on construction of Zalman:
- Cool to touch, high quality aluminum
- Fans are plastic, there are 2 fans
- Powered by USB cable, unit also contains a USB port to make up for the one it occupies
- After now 3 yrs this thing still works, still spins, and remains intact
- LED still works after 3 yrs, fan speed controller too
- Plastic legs adjust incline in unit from 7 to 9 degrees
Performance (GTWY test from 2009):
I used CPUID HWMonitor to keep track of my temperatures and Orthos to perform stress tests.
***All temperatures are in Celsius***
Room temperature is about 23 degrees Celsius and cooler sits at 9 degrees position
Idle: no cooler
Hard Drive: 32-35
GPU: 35
Processor Core 1: 35-42
Processor Core 2: 37-44
ACPI: 40
Idle: sitting on cooler (no fans) -- 10 minutes to equilibrate for all tests below
Hard Drive: 31-33
GPU: 34
Processor Core 1: 33-39
Processor Core 2: 36-44
ACPI: 39
Idle: fans on lowest setting
Hard Drive: 33-34
GPU: 33-34
Processor Core 1: 32-38
Processor Core 2: 36-42
ACPI: 39
Idle: fans on highest setting
Hard Drive: 32
GPU: 32
Processor Core 1: 28-33
Processor Core 2: 28-33
ACPI: 39
ORTHOS Stress Test, Computer set using RightMark CPUClock to be on Maximum x11 multiplier for my processors
Left for 10 minutes to equilibrate (keep in mind only Processor and ACPI temperatures rise with this test)
Test 1, no cooling, on table--- UNDERVOLTED LAPTOP for all tests
Hard Drive: 32-35
GPU: 35
Processor Core 1: 65-66
Processor Core 2: 64-66
ACPI: 60
Reached max temperature from hot start (having been on for awhile) in 30-45 seconds
Test 2, cooling pad, no fans
Hard Drive: 31-33
GPU: 34
Processor Core 1: 65-66
Processor Core 2: 64-66
ACPI: 60
Reached same max temperatures from hot start in 7 minutes 30 seconds
Test 3, cooling pad, low fans
Hard Drive: 33-34
GPU: 33-34
Processor Core 1: 63
Processor Core 2: 63
ACPI: 58
Reached these temperatures from hot start after 8 minutes
Test 4, cooling pad, high fans
Hard Drive: 32
GPU: 32
Processor Core 1: 59-63
Processor Core 2: 60-63
ACPI: 56
Both processors tend to hover around 61 most of the time, reached from hot start after 8 minutes as well
Conclusions:
Based on its performance, we see a slight drop in operating temperatures, even on my already undervolted laptop. These drops affect the processors and the ACPI by as much as 6 or 7 degrees Celsius, however, the average was around 3-4 degrees. The most dramatic effect the cooling pad implements is not in its ability to cool, but to prevent the system from heating quickly. As I indicated, using the cooling pad lengthened the amount of time it took for the system to reach its highest reported temperature for the 10 minute stress test, by adding fans, I simply made the maximum temperature less. Coupled with undervolting and adequate vent-to-air hole placement between your laptop and this cooler, you could experience tremendous cooling-- my processors were the hottest things in my computer and experienced a maximum 22 degrees Celsius drop in full load operating temperature and the time to reach the maximum temperature has grown 10-15 times longer than the original system did with undervolting alone.
Why no GPU temperature tests? My GPU consistently remains within 5 degrees Celsius (above and below) of my processor cores, so if I had performed a GPU stress test, you can probably expect roughly the same cooling effect the machine had on my processors. Also, CPUID does not detect my GPU, SpeedFan does and thus this is where I derived the above statement.
I highly recommend this cooler to those of you with massive, bulky laptops with vents located in the middle of the machine and towards the keyboard of the machine as well. If your vents are towards the battery compartment of your machine (as with most gaming laptops) this cooler is not for you as your vents are not in an optimal position to work with this cooler.
Performance (ASUS test from 2011):
IDLE:
Test 1, no cooling, on table
Processor Core 1: 56-60
Processor Core 2: 56-60
Test 2, cooling pad, no fans
Processor Core 1: 56-60
Processor Core 2: 56-60
Test 3, cooling pad, low fans
Processor Core 1: n/a
Processor Core 2: n/a
Test 4, cooling pad, high fans
Processor Core 1: 46-49
Processor Core 2: 46-49
STRESSED: (see NOTE)
Test 1, no cooling, on table
Processor Core 1: 63-66
Processor Core 2: 63-66
Test 2, cooling pad, no fans
Processor Core 1: 63-66
Processor Core 2: 63-66
Test 3, cooling pad, low fans
Processor Core 1: n/a
Processor Core 2: n/a
Test 4, cooling pad, high fans
Processor Core 1: 50-53
Processor Core 2: 50-52
NOTE: Orthos stressed only one core to 100% (hyper-threading capabilities), second core sat at 10-30% load.
Did not perform idle or stress tests using fan setting at lowest. It behaves comparable to no fans at all on this computer.
SUPER STRESS TEST:
Same computer as the previous test, with Zalman at highest fan speed only versus no cooling pad at all. Room temperature is around 18-19 Celsius (~65 Fahrenheit). This test was conducted to see how well the Zalman cooled my dual core i3 processor when the load on all 4 virtual cores (2 physical... hyper-threading) was 100%. To do this, I ran a quantum mechanical calculation using the program Gaussian09 in parallel (%nproc = 4). I ran the same calculation with and without the cooler, chloride ion and a single water molecule.
Average temperatures without Zalman cooler:
Temperature = 73 Celsius with fluctuations as low as 70 and as high as 78 Celsius.
Average temperatures WITH Zalman cooler:
Temperature = 65 Celsius with fluctuations as low as 62 and as high as 70 Celsius
Conclusion: Even after ~2 years this thing is still cooling off my computers. Still recommend.
Double conclusion: When running extremely resource intensive programs (games don't even come close to being as taxing as Gaussian09), one may argue the cooler is not as effective. I would agree the cooler does lose some of it's effectiveness when running 100% on all four virtual cores, using 2-3 GB of RAM, and writing multi-GB files simultaneously... but then again, when was the last time you ran a program that expensive on your laptop? I'm honestly surprised I even saw a difference in the temperatures between not using and using the cooler!
