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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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  • Roberto d.
  • 12/15/2014 5:29:51 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

2 out of 5 eggsMine is noisy.

Pros: Cools CPU
Slim design, fits in Cooler Master Elite 130 Mini-ITX Case
Inexpensive

Cons: I had the same problem as Robert L below. When I first booted the computer I heard a extremely loud rattle. I thought a cable was in the way of the fan so I quickly shut down the CPU and took a look. Nothing there, booted again, same noise. I pushed down on the fan thinking maybe it was loose and now the rattling noise is gone but it is still very noisy. I hear the rattle from time to time, during boot up period. I bought this fan for two reasons. Slim design and because it is supposed to be "Ultra Quiet". And after reading someone else having the same issue I am disappointed with the manufacturers quality assurance.

Other Thoughts: Had already submitted rebate before building the system. After rebate it would cost almost as much to ship it back for RMA as it would to just buy a new one. May just spend a little more and try the Cooler Master Seidon 120

Did you find this review helpful? Yes No

  • Anonymous
  • 12/3/2014 10:23:03 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

2 out of 5 eggs

Pros: well built
cheap with MIR

Cons: very poor design
can't be installed on 1150 easily
conflicted with my memory

Other Thoughts: don't buy it

Did you find this review helpful? Yes No

  • Robert S.
  • 12/3/2014 5:10:52 PM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsZALMAN CNPS8900 Quiet 110mm Ultra Quiet Slim CPU Cooler

Pros: 1) For the money it costs....solid choice!

2) Lower profile and installs so easy on my MSI G-45 FM2+ Mobo. (Big hands, big fingers, if I can do it...so can you )

3) Keeps my AMD 7850k Kaveri nice and cool even at 4.2.

4) Looks great on my MSI G-45 gamer MB.

5) And hey, it looks good and it works well, and that is what counts :)

Cons: None

Did you find this review helpful? Yes No

  • Anthony D.
  • 11/28/2014 6:25:56 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsworks perfectly

Pros: ultra quiet and it works

Cons: might be slightly difficult to install, read the instructions carefully

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

  • Robert L.
  • 11/21/2014 5:24:09 AM
  • Tech Level: Somewhat Low
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsVery noisy but cools well

Pros: It cools pretty well, I haven't seen many cooling issues. The included thermal grease is pretty good

Cons: The thing makes a TON of noise! it rattles whenever it spins. I had to turn the RPM REALLY low to stop the rattling, but it still does rattle on occasion. The fan also covers one of my ram ports, which is a huge negative. Installing the little plastics clips on the bracket was very hard.

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

  • Matthew H.
  • 11/1/2014 2:16:11 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsHTPC champ

Pros: -Very quiet operation. Not totally silent but unless you're going fanless it doesn't get much better than this from my experience.

-Seems to cool effectively. I'm using this with a 65W AMD A10-7800 so this cooler is clearly overkill and I haven't had any need to monitor temps at all. I wanted something silent and since the HTPC would be slightly confined on a media shelf I also wanted something that would keep me from worrying about heat building up. After a marathon of activity there seems to be barely any heat coming form the case at all.

-Beautiful design. I've used Zalman coolers almost exclusively for my CPU needs for years. My first was a CNPS7000 way back almost 10 years ago and this cooler seems almost like a throw back to that design. I've always felt that it was one of their better looking ones.

-Low enough profile for very small cases. I'm using the tiny Silverstone MILO ML06B Mini-ITX case and this is just short enough to fit. It's NOT low enough to fit a slim slot load optical drive above it, in fact I had to remove the bracket which would normally allow for that option. I wasn't planning to install one however so it's not a big deal to me. The cooler sits almost perfectly below a fan grill on the top of the case allowing for great airflow.

Cons: -The U-shaped brackets which come with the cooler require it to be installed so that the heat pipes stick out in fixed directions. This can cause compatibility issues with certain motherboards/RAM. If additional brackets were packaged to allow the heatsink to be rotated 90 degrees it would open up a LOT of motherboards for better compatibility.

Other Thoughts: I selected this cooler based on a motherboard which I eventually discovered wasn't a good choice for my case. When I changed my motherboard selection I forgot to make sure this cooler would be compatible with that one as well. I now know that a GIGABYTE GA-F2A88XN-WIFI is NOT compatible with this. The U-shaped brackets which are needed to fit the cooler with the AM2+ socket require the cooler to be positioned so that the heat pipes bump into the RAM and a motherboard heatsink. I wanted to use this cooler though, so I machined some new brackets which would allow me to rotate it 90 degrees. Basically, they're nearly straight instead of U shaped, but still connect to same points on the cooler as the stock brackets. They work fine but it would have saved a few hours if Zalman made the brackets themselves.

I wouldn't recommend these kinds of modifications unless you have the proper machinery and know how. I only bring it up to show that Zalman could make this cooler compatible for more configurations if they create some of these brackets themselves.

Overall I'm very pleased with this cooler in my HTPC. The build includes the following:

SILVERSTONE MILO Series ML06B Mini-ITX - Fits with about half an inch between the top of the cooler and the grill on the top of this case.

GIGABYTE GA-F2A88XN-WIFI - this is NOT compatible with the cooler. I had to create new parts to make it work.

AMD Radeon Gamer Series 16GB DDR3 2133 - this RAM is proof that giant heatsinks in high end memory are generally a gimmick. It performs wonderfully and sits cleanly under the edge of this Zalman cooler as long as one of the heat pipe sides isn't bumping into it.

SILVERSTONE ST45SF-G 450W SFX12V - this is a little bit quieter than the Zalman cooler, both are very quiet.

SAMSUNG 840 Pro SSD 256GB - no noise, basically no heat, and boots to XBMC in about 15 seconds. no complaints whatsoever.

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

  • 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)

5 out of 5 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

1 out of 5 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.

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