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Zalman CNPS 9500 AT Processor Cooler for Sockets 1155/1156/1366/775

by Zalman

Price: £46.61
Usually dispatched within 4 to 5 days.
Dispatched from and sold by ShopCuscus.
2 new from £39.99
  • Certified for Intel socket 775 // speed range 1300 rpm - 2500 rpm // noise level 18 dB (A) - 27.5 dB (A)
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Product Information

Technical Details
BrandZalman
Item Weight544 g
Product Dimensions16.5 x 10.7 x 10.2 cm
Item model numberCNPS9500AT
  
Additional Information
ASINB000HKDA0U
Best Sellers Rank 132,607 in Computers & Accessories (See top 100)
Shipping Weight748 g
Date First Available26 Nov 2007
  
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Product Description


Système de refroidissement Contrôlé par PWM pour socket Intel LGA775 & LGA1156

ZALMAN - PWM CONTROLED CPU COOLER - CNPS9500 AT


Features:

- Compatible with Intel's Dual Core Pentium, Pentium4, and Celeron D for Socket 775.  
- Low-noise 92mm PWM Control fan for automatic control of the fan's RPM according to CPU temperature.  
- Optimized heatsink layout composed of pure copper for maximum heatsink efficiency.
- Innovative, patented, and curved heatpipe design for a heat transfer capacity of up to six heatpipes with just three.  
- 0.2mm ultra-slim fins for minimized weight and reduced airflow resistance.  
- Maintains minimum RPM even when Duty signal supplied by M/B is below 30%.
- Operates in silence by preventing extreme RPM during initial booting.  


Specifications:

Heatsink:
Dimensions: 85(L) X 112(W) X 125(H) mm
Weight: 530g
Base: Material Pure Copper
Dissipation Area:  3,698㎠
Thermal Resistance: 0.12°C/W ~ 0.16°C/W  
Fan:
Bearing Type 2 Ball-B


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Most Helpful Customer Reviews

Verified Purchase
If you need a fan that can deal with exceptional circumstances and won't let you down, this is the one.

I have installed numerous third party and OEM fans and this is the one I keep coming back to.

Plus points: Properly set up, it delivers excellent cooling with little noise; I have not yet had one fail; it comes with silver paste in the box.

On the down side: It is a huge fan and retrofitting will mean disassembling your entire rig. It requires careful setting up and testing before screwing the lid back on.

Finally, check those dimensions before purchasing - many cases and CPU cowls prevent a fan this large being fitted.
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It looks so good it's a shame to close the computer case. Make sure your case has enough space for it. All copper construction works very well.
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Most Helpful Customer Reviews on Amazon.com (beta)

Amazon.com: 71 reviews
11 of 12 people found the following review helpful
Great CPU Cooler 12 July 2008
By A. D. Minton - Published on Amazon.com
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! And yes, this cooler IS rated for Quad Core Processors! Check Zalman's website!!!

If you're not into mega overclocking, don't want fan mates, or huge coolers, this is definitely worth looking into.

Positive: PWM fan, no fan mate, Quiet, sturdy (none of those dumb locking pins), and not too big.

Negative: None found, unless you want to count having to remove the MB for installation.

Overall: 100% satisfied.
8 of 9 people found the following review helpful
Amazingly quiet 22 Mar 2007
By sentinel - Published on Amazon.com
I installed this heatsink/fan yesterday, and I was blown away at how quiet it really is. It replaced the Thermaltake I had installed on my Core Duo which was intolerably loud (48+ dbA). Since the machine in question was a development box that was going to always be on, I needed to be able to hear myself think, not to mention sleep in the same room as the box. Thankfully, the Zalman is near silent when not under heavy CPU load.

Installing the sucker is time-consuming and tricky. Make sure you follow the directions carefully. Also, make sure your motherboard/case/power supply is compatible with this model. It's a very large heatsink. Check out Zalman's website for compatibility details.

Anyway, I highly recommend this cooling solution. It's worth every penny.
4 of 4 people found the following review helpful
Dropped my core temps in half! 13 Mar 2011
By Audrey A. Willman - Published on Amazon.com
Verified Purchase
The run down:
This heat sink pretty much saved my machine. The stock fan that came with my Intel Core 2 Duo processor was so bad it was allowing it to get to ungodly temperatures, even with maxed fan speed! Trying to stream a movie in HD was shutting my computer off completely at times. I was idling a lousy 85C and now even playing games it doesn't go above 45C. This is so efficient it has even reduced my ambient case temperature quite a bit. Noise-wise it is pretty darn quiet. I do not by any means have a silent set-up. I have all fans maxed out because of the heat problems I was having and I can't hear this heat sink at all over the other fans. It IS pretty large, especially by comparison to the stock cooler, but it fit in my full sized case with no problems. I love this sucker.

Some thoughts:
-My package was said to contain a backplate for the 775 socket set-up (which I have), but I didn't get one of those. It installed perfectly fine without it but it is odd that it is listed in the packaging components and is no where to be seen.
-I had to put my cpu in before installing the plastic mounting bracket, the j-arm clip thing doesn't allow access to the cpu slot once the plastic bracket is screwed on.
-I recommend disassembling everything and installing this onto the motherboard while it is out of the case. The plastic mounting was easy to screw in once I had easy access to the bottom of my motherboard.
-The metal bracket that holds the heat sink to the bracket is difficult to screw in as well so having a full 360 degree free access to the set-up is key. With my motherboard screwed down I couldn't screw the heat sink to the bracket without cutting myself.

Summary:
I love this heat sink. I have a pretty scorching set up (poor air-flow, inefficient gpu, dusty and crowded environment) but once I dropped this in I've had no heat problems whatsoever. I highly recommended this cooler, especially over the stock P.O.S. Intel ships out with their otherwise respectable processor systems. Maybe now I'll finally venture into the world of overclocking with this by my side... MAYBE!

The equipment:
Intel Core 2 Duo E8400 Wolfdale 3.0 GHZ
ASUS PQ5 Pro Motherboard
Arctic Silver 5 Thermal Compound after using ArctiClean Kit
2 of 2 people found the following review helpful
Quiet, Fits in 4U Chassis, Zalman quality though not their best 30 Oct 2013
By JCB - Published on Amazon.com
Verified Purchase
Mounting System deserves 3.5; the remainder of the unit is of 5 star quality.

Cools well
fits in 4U chassis
quiet

Would buy again
1 of 1 people found the following review helpful
It works... 23 Dec 2013
By Julie - Published on Amazon.com
Verified Purchase
I just built my husband a new computer, had a moment of concern when I didn't see LGA 1150 listed on the box for compatibility, but it fit and worked just fine. It's keeping his i7-4771 nice and cool.

This one does NOT have LED's but on the bright side, unlike the version of this cooler that is similar but does have the blue LEDs, this one is PWM controlled. I like that. And since this build has green lighting I didn't really want blue LEDs anyways. Fit just fine on our Gigabyte Sniper board with Ripjaws ram. Looks beastly. Not loud. Reasonably priced.

I have no complaints.
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