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ZALMAN FX70 Fanless CPU Cooler

Ships from Hong Kong. Most customers receive within 4-16 days.

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  • High performance Fanless design
  • Twist heatsink structure for more cooling capacity
  • 6 heatpipe Black-pearl nickel plated
  • Additional optional fans may be installed for increased performance.

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ZALMAN FX70 Fanless CPU Cooler
Ships from Hong Kong. Most customers receive within 4-16 days.
  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

The new FX70 CPU cooler is designed to provide the maximum cooling performance. It features a Twist heatsink structure, boasts six beefy heatpipes, and even allows you to install extra low-noise fans (sold separately) at the front or back. Thanks to the fanless design, this durable unit is the perfect cooling solution at places where noise, dust, and vibration can be detrimental to the system and its surrounding areas. Additionally, it works with most CPU sockets.

detailed view and application

  • newegg Unmatched cooling performance The twist fin design maximizes natural convection through continuous stirring of the airflow. Up to six heatpipes provide optimized heat transfer performance. Plus, the high performance Thermal Grease (ZM-STG2M) also helps maximize adhesion and cooling performance.
  • newegg Mount extra fan This unit is able to add optional low-noise fans at the front or back. And, fan clips are provided for only one fan mounting.
  • newegg High durability The high-performance fanless design minimizes factors that influence the damage of electronics, such as vibration and dust, to extend its lifespan. The heatsinks have black pearl nickel-plating for enhanced corrosion resistance and a luxurious image.
  • newegg Wide compatibility The FX70 fits in an ATX mid tower case (width 180mm) and is compatible with most CPU sockets, including Socket 1150, Socket FM2, Socket AM2+/AM2, Socket AM3+/AM3, Socket FM1, Socket 775, Socket 1156, Socket 1366, Socket 1155 and Socket 2011. (Please apply optional fans for CPUs generating heat over 95W.)

Learn more about the Zalman Tech Co., Ltd FX70

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details
Anonymous
Ownership: 1 week to 1 month
Verified Owner
4/ 5
Good performance, Poor Installation 12/10/2016 12:31:32 PM

Pros: Works quite well with a fan and comes with clips for attaching a 120mm one, though I wish it also came with 140mm clips.
Twisting fin structure fortunately does not generate any extra noise with a fan installed. I was afraid it was going to create audible air eddies, but nope.
It's huge for a heatsink, but it still managed to fit on my Maximus VIII Gene mATX board, with 2 millimeters to spare before touching my GPU (which has a backplate)

Cons: Massive pain to attach to the motherboard.
Requires an extra long screwdriver to attach the heatsink to the backplate (around 10 inches, 6mm diameter)
Backplate female screws are short, so you have to press down heavily as you turn the screwdriver.
Instruction booklet is pretty poorly written; can't make heads or tails of some of the pictures.

Overall Review: I bought one of these for the express purposing of attaching a fan to improve cooling.
I figured that some companies make good fans, and some companies have good heatsink designs, but rarely do they do both things at a reasonable price, so I bought one of these for 50 bucks and slapped on a noctua.
I hover around 8 degrees delta while idle and 27 degrees delta while gaming on a i5-6600k OCed @4.6ghz 1.328V
I used gelid solutions gc-extreme thermal compound and a NF-F12 PWM fan with two NF-P14s redux-1500 PWM fans attached to the case very close by.

1 out of 2 people found this review helpful. Did you?
Ownership: 1 day to 1 week
Verified Owner
5/ 5
Great so far 11/9/2016 4:12:41 PM

Pros: - CPU temps are staying surprisingly low.
- NO NOISE!!!

Cons: - The assembly instructions could be a little clearer

Overall Review: If you have a PC that is used for regular (non-gaming) workloads, then this heatsink should be just fine ... AND OH SO BEAUTIFULLY QUIET!!! I can't say how it will perform under heavy load.

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
One of the best coolers for the price. 10/1/2016 4:21:57 PM

Pros: Cools BETTER than the stock Intel cooler that came with my 4770K, even with CPU-heavy applications, with no fan mounted.

Totally Silent CPU cooling.

Cons: As with larger heatsinks, installation is tricky. Be prepared to take your whole board out first, even if your case has rear CPU socket access.

Overall Review: Does not come with a fan so if you plan on overclocking, grab a 120mm fan of your choice. The kit includes mounting clips for fans.

2 out of 4 people found this review helpful. Did you?
5/ 5
I am in love with it ! 3/28/2016 11:40:56 AM

Pros: The set up around this cooler is a P280 with 5 x 120mm. So, the heat is pump by 3 x 120mm fans at 800 rpm. It's able to cool a stock 2500k under 60 celcuis under gaming load. There is no fan attach to the CPU cooler.

Cons: -It's huge. I have a MSI B75MA-P45 and the cooler sit on the graphic card back plate. If you don't have back plate, it will left something like 3-4 mm between cooler and GC.
-Instruction are not the most user friendly. Socket are combine in the same instruction.

Overall Review: it's a affordable and nice way to passively cool your CPU.

1 out of 1 people found this review helpful. Did you?
Ownership: 1 day to 1 week
Verified Owner
5/ 5
Pretty impressive 2/14/2016 5:11:48 PM

Pros: completely silent, no fans/pumps.

Cons: Installation and instructions (if you've installed heat sinks before it's pretty straight forward, but if you do happen to look at the instructions you might laugh) were truly a pain, but now that it's on I'm really liking it.

Overall Review: For some reason i thought my i5 4590 was somewhere around a 65W cpu, not an 85W. I still get reasonable temps, Prime95 was able to really heat up my CPU (it eventually hit 80C and i shut it off, but outside of that I dont see anything above 65C, idles are around 32-37C where my room temperature is around 80F.

1 out of 2 people found this review helpful. Did you?
Anonymous
Ownership: 1 day to 1 week
Verified Owner
4/ 5
Great Passive cooler 1/14/2016 3:24:39 PM

Pros: -Looks good
-Performs well for what it is

Cons: -Mounting on AMD sockets does not seem very well thought out
-Mounting in general is inferior to most hsf setups I've used in well over 10+ years.
-Only consider if you want passive, or have some serious exhaust fans close by

Overall Review: I have this on an A10-7850K, all stock settings (95w tdp), but no fans. It is out in the open no case or anything, zero fans anywhere in the room. Under these conditions is does get hot, idles around 40c and I've seen it up to 73c, but this is all passive cooling so I'm ok with those numbers. I mostly do desktop stuff on it so it doesn't see hardcore gaming... It does have clips for a fan, but if you need fans I would go with another cooler, ANY other cooler!

Did you find this review helpful?
Anonymous
Ownership: 1 day to 1 week
Verified Owner
5/ 5
Great cooler 11/8/2015 6:22:03 PM

Pros: It was cheaper than my cooler designed for a fan and works even better. I know the TDP rating without a fan is 80 but I decided to run it without one. Even so it still kept the same idle temps as the old cooler and 2c higher when gaming. I decided to try it with a fan and my isle temps went from 35-38c old down to a steady 28c new with fan. Interestingly enough I used the same fan from the old cooler on this one.

Cons: Size. Plain and simple. I'm using Kingston hyper x low profile ram so it fit nicely underneath but if you have tall heat sinks then forget it.

Overall Review: It fits nicely on an MSI A88XM gaming mother board although it will overlap the first 2 dimm slots and large heat sinks in dimm 3 will be very close if not touching the fins. Plenty of room between the fins and pcie 1 and just enough clearance over the CPU power sinks. All of this is housed in a cooler master haf xb Evo case with an intake fan up front and an exhaust fan in the back providing strait front to back airflow. I have the fan on the cooler in a pull config exhausting out the side of the case and even a 95W CPU at 4.0GHz is well within acceptable temps for me. This may be good enough to do some minor OCing workout the need for a more expensive and much more tedious liquid chilling system. I would recommend this cooler to anyone looking for a relatively cheap air cooler that's worth the money spent on it and would highly recommend it to anyone looking to build a completely silent HTPC. Specs say you have 80W to work with so a non over clocked Intel build should do nicely.

Did you find this review helpful?
Ownership: less than 1 day
Verified Owner
5/ 5
it keeps pretty cool 10/18/2015 8:09:07 PM

Pros: It's so quite without cpu fan rolling. it's slient and keeps cpu pretty cool

Cons: none so far

Overall Review: In order to install this heat sink, I had to take out mobo first then I didn't think about size of the heat sink. the heat sink is so huge I couln't secure some secrews for mobo at top side. the top of computer case is closed.

Did you find this review helpful?
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