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ZALMAN CNPS8900 Quiet 110mm Ultra Quiet Slim CPU Cooler

  • 1000 ~ 1500 rpm ± 10%
  • Fins: Aluminum / Base: Copper
  • Long Life Bearing
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The slim ZALMAN CNPS8900 Quiet offers ultra-quiet cooling for low profile cases. An ultra quiet 110mm PWM fan, two Direct Touch heatpipes and aluminum fins combine to deliver efficient heat dissipation to keep your CPU and peripheral areas cool. Broad socket compatibility makes it suitable for almost all the mainstream motherboard platforms.

  • newegg Powerful cooling performance and quiet operation Two heatpipes and aluminum fins are designed for maximum cooling while switching noise free, down-blowing 110mm fan minimizes noise and cools not only the CPU but also provides powerful peripheral cooling. Moreover, the fan eliminates switching noise* for ultra quiet operation. (*switching noise is the high frequency harmonic noise that can result from voltage regulation).
  • newegg Direct Touch Heatpipe (DTH) Base DTH technology transfers the CPU’s heat directly to heatpipes, thereby minimizing heat resistance and maximizing cooling performance.
  • newegg Slim Profile The CPU cooler’s height is 60mm and designed to be installed in ATX cases as well as slim or LP (low profile) cases.
  • newegg Versatile Compatibility CNPS8900 Quiet accommodates a broad range of sockets including Intel LGA1155/1156/1366/775 and AMD FM1/AM3+/AM3/AM2+/AM2.
  • newegg High Performance Thermal Grease High performance super thermal grease ZM-STG2M maximizes heat transfer from the CPU to the base of CNPS8900 Quiet for intensified cooling performance.


Learn more about the Zalman Tech Co., Ltd CNPS8900 Quiet

Model

Brand
ZALMAN
Model
CNPS8900 Quiet

Spec

Type
Fan & Heatsinks
Fan Size
110mm
Compatibility
Intel LGA 1150/1155/1156/1366/775

AMD FM1/AM3+/AM3/AM2+/AM2
RPM
1000 ~ 1500 rpm +/- 10%
Noise Level
19 ~ 25 dBA +/- 10%
Heatsink Material
Fins: Aluminum / Base: Copper

Physical Spec

Weight
400g

Features

Features
Long Life Bearing

Heatpipes: 2

Dissipation Area: 1960 cm2

Rated Voltage: 12V

Two heatpipes and aluminum fins are designed for maximum cooling while switching noise free, down-blowing 110mm fan minimizes noise and cools not only the CPU but also provides powerful peripheral cooling.

The CPU cooler's height is 60mm and designed to be installed in ATX cases as well as slim or LP (low profile) cases.

Switching noise eliminated 110mm fan is incorporated for ultra quiet operation.

Quick Info

Warranty

  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year


Customer Reviews of the Zalman Tech Co., Ltd CNPS8900 Quiet

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  • Anonymous
  • 8/18/2014 11:50:52 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week

5 out of 5 eggsOne of the better options for an HTPC.

Pros: I am using this in a Silverstone GD06 with an MSI X58M. I have no issues clearing RAM. In what is a fairly cramped case I have fit the following previously:

Zalman CNPS8000B (92mm)
Scythe SCSK-1100 Shuriken Rev. B3 (100mm)
Scythe SCBSK-2100 BIG Shuriken 2 Rev. B (120mm)
Asetek 545LC (90mm all-in-one kit, required case modification).

The Zalman CNPS8900 gives me about 1cm of clearance under my BD Drive. The Zalman CNPS8000B gave more clearance but it had the noise levels of a turboprop.

I am seeing 10-15c improvement over stock under load for an i7-965 using Antec Formula 7 (my tube of Arctic Silver 5 went AWOL). I have fitted Enermax T.B. Silence case fans (15dBa) and this cooler is not audible over them under load. The loudest fans in the case are my two GTX760s under load.

The cooler is extremely easy to assemble. The manual could be reduced to a single page; looking at the pictures is more than sufficient. Anyone with difficulty installing this likely did not measure out available space properly before trying to slap it on an MITX, or is just flat out incompetent in life (and erroneously gave themselves "5" for Tech Knowledge).

Cons: Captive thumb screws would work much better and remove the need for a screwdriver, but this is not worth an egg deduction. It takes real effort to misalign the screws.

The fan cable ending in a mini 4-pin makes no sense. There is an adapter cable terminating in a 4-pin PWM fan connector which is unnecessary, but this is not worth an egg deduction.

The first package I opened had a dead fan motor. I've had some incidents in the past with dodgy fans from Zalman, but this was remedied by a quick exchange. Still not worth an egg deduction.

Cooler uses a proprietary, non-replaceable 110mm fan. Not that big a deal.

Other Thoughts: This is probably the best low profile heatsink that can fit into an HTPC case short of the Noctua NH-L12 (which has clearance issues due to its width). I am seeing minimal difference between this and the Asetek 545LC, which admittedly is an inferior watercooling solution. Considering the cramped dimensions, airflow issues, and high heat given off by an i7-965, it performs admirably; even better than the Scythes I used previously.

Relevant specs:

Silverstone GD06 HTPC case
MSI X58M LGA1366 motherboard
i7-965
Mushkin Enhanced Blackline RAM (all 6 slots used on mobo)
Enermax TB SILENCE fans (3x120, 2x80mm, 1x90mm)

3 out of 3 people found this review helpful. Did you? Yes No

  • Anonymous
  • 7/28/2014 3:23:51 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

1 out of 5 eggsNoisy and only average cooling

Pros: see Cons and Other

Cons: I wanted to replace my stock cooler that came with my intel i3-4150. It was small and got around 70C when pushed by games, and was somewhat loud at 1500rpm. With it reduced to 1000rpm, I could get 40C temps on normal desktop stuff however, with an almost inaudible 1000rpm. Even though the zalman CNPS8900 cooler won a Tom's Hardware award, they are a poor review site for coolers without the proper measurements and expertise. There were also mixed reviews, especially about the quietness of the fan. I was stupid and bought it because it seemed popular enough, was a low height non-tower cooler that was relativvely inexpensive, and thought that all fans were created equal when it came to sound by reducing RPM. Boy was I wrong.

The other reviews have already gone over quite extensively the hassle of installing this cooler. I'll add on that it is okay to install on an ITX mobo, specifically a Gigabyte H97N-WIFI, but you need low profile RAM (in other words they are short with minimal heatspreaders), and you can only position the cooler with the heatpipes parallel to the RAM (for some reason the manual says its less efficient cooling this way) as otherwise the pipes would push against the first RAM slot. If you have an ITX mobo, check to make sure it looks like the H97N. Those mobos with an extra PCIe 1x slot at the bottom (which is kind of pointless since most good video cards will block it with two-slot coolers anyway) this cooler will probably block your 16x slot for the video card since it's higher up. If the slot is just along the bottom and by its lonesome, however, it should work without issue.

Other Thoughts: Now lets talk about the cooler performance itself. Although temps were a little better than the stock cooler, they weren't amazingly better. 5-10 degrees lower at max and even less when just idling. However, the fan is just AWFUL. Loud, weedwacker sounding, buzzing, and whining. It's not QUIET like the name implies. The reason for the mixed reviews is many people have their computer far away and have a lot of ambient sounds including noisy video card coolers, so in a normal gamer setup it may seem reasonable. But if you have a normal desktop, or in my case, a low noise setup sitting only a couple feet away, it is the loudest and most obnoxious component around, eevn worse than my 7200rpm hard drive at full blast. The RPM range on the fan is really terrible as well. It goes from around 1100-1500RPM. Not being able to go below 1000RPM is just ridiculous. At 1100RPM the fan is semi-loud, but it has an obnoxious whine that pierces through all other noises. You know how in the movies when someone stands near a bomb that detonates and their ears continue to ring afterwards? It's like that. So I set it to 1300RPM. Now it sounds like a buzzing, grinding, loud and awful cheap fan that is on the verge of dying.

I waited for a Scythe Big Shuriken 2 to arrive from somewhere else before shipping the zalman CNPS8900 off to return, my own shipping cost and a restocking fee of course. And oh my stockingstuffers is it night and day. There was literally only a $4 difference in price. I should have just gotten this tried and true one that everyone recommends for quiet computing. Installation was a pain as well, but there was no clearance issues or "right way" to position it. My temps dropped to near ambient during idle (35-36C, it's like 34C around here), and during intense gaming it only goes up to 55-56C. Best of all it is actually QUIET. No high pitched whine. No buzzing. No grinding. No sounds from the fan motor at all. The only sound you hear is air turbulence from the air being pushed. The RPM ranges from 600-2100RPM which is a very good range. I set the RPM to 800 and have never changed it, and it achieves those amazing temps with this low RPM.

TL:DR. Do not buy Zalman CNPS8900. Get Scythe Big Shuriken 2 instead.

Manufacturer Response:

Dear valued customer,

We sincerely apologize for the issue. Please contact our customer service e-mail support.usa@zalmanusa.com or via toll free number 1-888-925-6266 for further assistance.

Thank you.

Best regards,

Zalman USA Customer Service

0 out of 1 people found this review helpful. Did you? Yes No

  • Clinton G.
  • 7/23/2014 7:03:36 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsThis thing is a BEAST

Pros: I have no doubt in this things ability to keep my A10-5800K cool. I had an Arctic Pro cooler that more than did the job but I needed to switch to a low profile case. This thing is huge with that said it is low profile enough to fit in my case. Installation was a little tricky it does require a little more work than some of the other brand of coolers on the market. That said it is more than capable of cooling my cpu this is being used in a Fractal HTPC case and it is quiet.

Cons: Before ordering I would definitely look over the size and double check your motherboard to make sure it will work for your needs.

Other Thoughts: Overall I am very happy with my purchase it is definitely a high quality product capable of meeting most peoples cooling needs.

1 out of 2 people found this review helpful. Did you? Yes No

  • Joseph B.
  • 7/21/2014 8:17:26 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGreat cooler, nightmare install

Pros: Low temps, lots of copper, fit nicely in my HTPC. This thing is so quiet I had to double check that the fan was actually spinning. I've only had it for a couple weeks, but no noise yet.

Cons: The instructions were easy to follow, but getting this to fit with the LGA1150 board was very difficult. The back plate design is awful. The screws didn't seem long enough and it required two people to line up the holes and secure this thing to the board without breaking anything (doesn't help that I have fat fingers).

Other Thoughts: Although this was a pain to install, its very quiet and keeps temps pretty low. I would like one for my other PC, but I haven't decided if I will buy another or not because the install is such a hassle.

Did you find this review helpful? Yes No

  • Terry B.
  • 6/18/2014 10:01:28 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGood Low profile cooler

Pros: Keeps my new 1150, I5-4690 cool. I intrudes little on the first ram slot but does not affect the others. Quiet.

Cons: Little difficult to install but not hard if you follow directions. There is also a youtube video of a guy installing which made a lot easier.

Other Thoughts: Would purchase again.

Did you find this review helpful? Yes No

  • William W.
  • 6/13/2014 11:30:24 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsQuiet, and cool,

Pros: Very quiet, cools effectively, low profile fits in shallow HTPC case with no issues.

Cons: Not the easiest to install, machining of the base could be a bit smoother.

Other Thoughts: Unlike some of the other reviewers, I had no problem getting this installed on my motherboard. I suspect the others who had problems were doing something incorrectly. Perhaps they installed the tabs upside down? Yes, it is a bit hard to get a screwdriver on the screws, but if you are gentle and don't try to over tighten, they go on just fine with the screwdriver at a slight angle. I had no clearance issues with mine. Plenty of room to the memory slots, and my tall VRM heatsink did not interfere either.

Because of the exposed heatpipes and the gaps, it is important that you pre-tint the base of the heatsink with thermal compound so that the gaps are filled in before installation.

Overall, this is a very good choice for a HTPC case as long as you don't have a CPU that is more than ~90W or so. My 65w AMD A6 stays very cool and I never hear the fan ramp up.

Did you find this review helpful? Yes No

  • Henry C.
  • 6/10/2014 2:00:22 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsGreat Cooler

Pros: Most importantly dropped by 50-60C on load from bad stock heatsink (with no fan). I was hoping for just 30-40C.
Low form beneficial due to microATX case
clearance on side is tough, won't clear diameter, but added height will clear normal RAM.

Cons: Difficult to screw at an angle.
Measured out would not clear RAM with high RAM heatsink.

Other Thoughts: Not noisy to me like some other said, though I have tons of fans in the room, it'd be hard to tell I suppose.

Did you find this review helpful? Yes No

  • Michael A.
  • 5/30/2014 6:04:54 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsvery quiet

Pros: Quiet
Fits in a low profile case

Cons: not cheap

Other Thoughts: replaced a very loud Dell factory fan in a Dell Inspirion 620s and it fit and it is quiet.

0 out of 1 people found this review helpful. Did you? Yes No

  • Thomas H.
  • 5/20/2014 5:01:43 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsPerfect

Pros: Lowered temps on i5 4670K by 20C over stock cooler.

Cheap for performance, easy to install (w/ exception)

Cons: Directions seem to assume that the user is installing on a basic motherboard, I had to skip the loading ring on my install due to clearance issues w/ existing loading plate on my board. No biggie but some people might not feel comfortable messing around with their hardware like that.

Other Thoughts: Fits on Asus Maxiumus VI GENE, was worried about VRM heatsinks/RAM but it fits like a glove.

1 out of 1 people found this review helpful. Did you? Yes No

  • Kenneth R.
  • 5/13/2014 10:26:53 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsawesome

Pros: Overclocked 3.5 GHZ FX-6300 to 4.0 GHZ ran @ 100% for 30 min, never exceeded 58 degrees C. hovers around 22 degrees C @ idle. best low profile air cooler for HTPC system available. Sweet! Do Not do much gaming but believe
capable. Very stable overclock

Cons: No clearance standard profile memory on micro-ATX MSI board. 2 slots. Wish heat pipes came up were 90 degrees other way. But both slots work all 16 Gb available. Used Supplied thermal paste, carefully distributed.

Other Thoughts: Silverstone HTPC case
AMD FX-6300 overclocked to 4 GHZ
2 x 8 GB Kingston Hyper-x 1600 DDR2 memory
MSI Micro-ATX board
Sapphire HD-7770 1 Gb DDR5

Did you find this review helpful? Yes No

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