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Zalman Computer Noise Prevention System with Silent Fan Pure Copper Heatsink CPU Cooler CNPS9500AT

4.4 out of 5 stars 354 customer reviews
| 40 answered questions

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CNPS9500AT
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  • Innovative, patented, and curved heat pipe design for a heat transfer capacity of up to six heat pipes with just three.
  • Low-noise 92mm PWM Control fan for automatic control of the fan's RPM according to CPU temperature.
  • Compatible with Intel Socket LGA 775/1156/1155/1150.
  • For Socket : Optional CS4A should be purchased.
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$30.76 & FREE Shipping on orders over $49. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Zalman Computer Noise Prevention System with Silent Fan Pure Copper Heatsink CPU Cooler CNPS9500AT
  • +
  • Arctic Silver 5 AS5-3.5G Thermal Paste
  • +
  • Intel Boxed Core I7-6700K 4.00 GHz 8M Processor Cache 4 LGA 1151 BX80662I76700K
Total price: $383.16
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Product Description

Style: CNPS9500AT

Silent CPU cooler equipped with a PWM fan and 3 heat pipes that function as 6 heat pipes.

Product Information

Style:CNPS9500AT

Technical Details

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Brand Name Zalman
Series ZALMAN CNPS
Item model number CNPS9500AT
Hardware Platform PC
Item Weight 1.2 pounds
Product Dimensions 6.5 x 4.2 x 4 inches
Item Dimensions L x W x H 6.5 x 4.2 x 4 inches
Color red
Processor Brand Intel

Additional Information

ASIN B000HKDA0U
Customer Reviews
4.4 out of 5 stars 354 customer reviews

4.4 out of 5 stars
Best Sellers Rank #108 in Electronics > Computers & Accessories > Computer Components > Fans & Cooling > CPU Cooling Fans
Shipping Weight 1.8 pounds (View shipping rates and policies)
Date First Available July 7, 2004

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Style Name: CNPS9500AT Verified Purchase
I live in a tropical island in the caribbean, I was looking for a practical and effective cooler solution without complications in the process of installing, my i7 4770 used to have temperatures in idle of 60 degrees with the new cooler I have between 30 and 35 degrees...in gaming I used to have between 88 and 98 degrees, with the actual cooler im getting between 40 and 50...is amazing considering my weather conditions.

5 STAR !!
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Style Name: CNPS9900A LED Verified Purchase
Although large and heavy, it runs several degrees C cooler than the heatsink/fan delivered with the Intel Quad Core CPU. Running Core Temp, all 4 cores run under 40 C where as the Intel factory provided system was running 44 and higher at idle temps and 65 C + under load, which is what prompted me to purchase a larger heatsink.

I rarely hear the fan spin up faster and never see temps over 45 C even while running gaming applications.

CON: It is large and may require a little caution when installing depending on how your power wiring in your PC is setup. I had to tie one power wire to the case to keep it from touching the heatsink. Also it's own power wire for the fan needs a little care when installing. It can be pulled to tight and interfere with the fan.

Install was simple but does require you remove the motherboard as there is a back plate you must install to support the weight. It does not use the horrible push pin locking system that the factory setup does.
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Style Name: CNPS9500A LED
This cooler is the perfect way to keep your system quiet. I have a AMD FX2 CPU and I've had six different coolers/fans to try to keep my computer as quiet as possible. I recently purchased a high-end graphics card with passive (no fan) cooling and this made the situation worse because the CPU fan was having to pick up the slack and move more heat.

Zalman has a great reputation and I thought this fan might do the trick.

It did.

My system is whisper quiet, even when I tax the CPU heavily and the video card, -even at the same time. I never thought my computer could be so quiet.

Some things to keep in mind.

1) Take your time, read the instructions, and be careful of the fins, they're sharp.

2) Make sure you face the fan in the right direction, it's not in the logical direction you might think. In my case the fan is on the far side of the back of the case and you might think otherwise when you first look at it.

3) Instructions need to followed if your installation is going to work. It's a bit of a puzzle, especially if you only use the printed instructions.

4) I strongly recommend you USE THE ZALMAN WEB SITE for help with the installation. Go to their web site, find this cooler in their product list, and once you're at this product's web site you'll find an installation tab with a very, very good animated installation guide.

5) Be sure you select your correct CPU for instructions, the Intel and AMD instructions are VERY different (due to the way they mount to a motherboard).

Considering the cost, and the 30 minutes to install, I think this fan is worth the time and effort and cost.

An excellent product!
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Style Name: CNPS9500AT Verified Purchase
OK, so I got my Zalman CNPS9500 AT in today and hooked this baby up and must say I'm impressed with the results. Since I'd already had a Zalman CPU cooler before (CNPS7700-AICu) installation was a breeze since I didn't have to remove the MB again.

It's not as big as the CNPS9700 (good), but it does its job well. The copper base came machined flat, very smooth and shinny. The fan is black in color and has no LED's.

As far as fan noise...quiet, quiet, quiet...even at load. Did I say quiet?

And speaking of the fan, one of the selling points for me was the fact that the cooler comes with a 4-pin Pulse Width Modulation (PWM) fan which allows the motherboard to automatically control the fan's speed. The fan draws power from a 4-pin fan header installed on many of the newer motherboards. This helps to keeps fan noise to a minimum as it will only ramp up when needed. As such, there is no fan mate is included with this CPU cooler. However, 4 pin PWM fans are backwards compatible with 3 pin fan headers...but, you would lose the ability to control the fan speed by plugging a 4 pin PWM into a 3 pin fan header. This is something to consider, especially if your MB does not have a PWM header. In that case, you'll need a cooler with a fan mate/controller to control the fan's speed; otherwise the fan will run at full throttle.

So does it work??? Well, it dropped my CPU temps at least 13C, if not more. No kidding. I have a Core 2 Quad Q6600 (2.4GHz) B3 stepping which I had running at 2.66GHz with idle temps of around 59C in an Antec P182 case with stock fans. With 9500 AT installed, I'm now at 2.9gigs with idle temps of 46C, 75C load with prime 95 running. Some will say this is hot, others will say it's about right. Such is the CPU I have!
Read more ›
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Style Name: CNPS9900A LED Verified Purchase
I was a bit confused because of the mixed reviews and the conflicting information in Amazon.com's product description. Contrary to what Amazon.com states above, they are actually shipping the *current* model of this cooler, which is the Zalman CNPS9900A LED. This latest model of the cooler comes with a mounting bracket for socket LGA155/1156. One of the reviews is from 2009, well and perhaps that is why the information is inaccurate. This is the *latest* version of the cooler, and it is *beautiful* and *effective!*

However, assembling the cooler is a bit trickier than the instructions report. The instructions correctly state that one has to remove the protective shroud before using the cooler. What the instructions do *not* say is that the protective shroud must be removed *before* one can install the base bracket on the cooler to mount it in the case. I wasted quite a bit of time trying to install base bracket on the fan before I realized that simply cutting off the protective plastic shroud made assembly simple.

I recommend the Zalman CNPS9900A LED CPU cooler highly and without reservation. It is a highly effective cooler and it is beautiful, with a bright blue LED, while doing its job.
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