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ZALMAN LQ-320 Water/Liquid CPU Cooler 120MM

  • 90 - 2000 RPM +/-10%
  • Fan Dim. 120 x 120 x 25mm
  • 4 Pin
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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LQ Series
Blue LED Water Block
The blue LED not only provides a modded effect, but also allows user to check on the pump.
LQ Series
Built-in ultra quiet / high-efficiency water block minimizes tube connections and helps coolant to rotate quickly and stably.
LQ Series
Slim Water Block Design
Slim water block installs in ATX cases and Slim and LP (Low Profile) cases. (But only in cases that can accommodate a 120mm back fan.)
LQ Series
Micro Fins And Copper Base
High cooling performance with pure copper water block and inner pure copper micro fins for efficient heat transfer.
LQ Series
High Compatibility
Compatible with not only Intel newest socket LGA2011 but also supports LGA 1155, 1156, 1150, 1366; AMD sockets FM2, FM1, AM3+, AM3, AM2+, AM2; and most of the desktop CPU and APU sockets.
LQ Series
Zalman High Quality Design
Zalman unique hairline process covers the upgraded design.
LQ Series
High durability tube applied to ensure safety - no leaks even after long term use.
LQ Series
Minimized Noise, Maximized Performance
Ultra quiet 120mm fan and aluminum radiators are used to minimize noise and maximize cooling performance.
LQ Series
Dual Cooling Fan Can Be Installed
Install extra fans according to your needs. Optimize the cooling effects with dual fans.
LQ Series
No need to replace coolant. Easy installation and maintenance.
LQ Series
Eco-friendly, glycol-based coolant with corrosion inhibitor is added to prevent metal corrosion.
Cooling Process
LQ Series
Water Block & Pump Dimensions Ø65 x 32T
Materials Base: Pure Copper
Water Pump Enclosed Type
LED Color Blue
Weight(Water Block) 7oz (195g)
Connector 3-Pin
Radiator Dimensions (L x W x H) 6in. x 5in. x 2in. (153mm x 124mm x 52mm)
Materials Aluminum
Tube Length 300mm
Fan Dimensions (L x W x H) 4.75in. x 4.75in. x 1in. (120mm x 120mm x 25mm)
Speed 900 - 2,000RPM ± 10%
Bearing Long life bearing
Control Method PWM Control, Auto Restart
Connector 4-Pin
PWM Duty Cycle 30 - 100 ± 5%
Qmax 340W
Rated Voltage 12VDC
Weight 7.75lbs (810g)


Learn more about the Zalman Tech Co., Ltd LQ-320


Liquid Cooling System


Block Compatibility
Intel socket: 2011 / 1366 / 1156 / 1155 / 1150 CPUs, AMD socket: FM2 / FM1 / AM3+ / AM3 / AM2+ / AM2 CPUs & APUs
Block Material
Base: Pure Copper / Fins: Aluminum


Fan Dim.
120 x 120 x 25mm
90 - 2000 RPM +/-10%
Fan Connector
4 Pin

Quick Info


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

Customer Reviews of the Zalman Tech Co., Ltd LQ-320

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  • Anthony W.
  • 8/15/2014 11:46:34 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsSo cool

Pros: Sleek, solid, quiet.
This cooler is great. Granted it's new but the overall quality is great. The components all appear solid. My build puts this cooler with an FX-8350 CPU and it's great. Under full load the CPU never peaks past 50c. Idle with no load can drop me down to 7c. All temps measured with CoreTemp.
The overall feel of this cooler is solid and quality. the instructions are a bit vague but not impossible to work with. The install is a breeze and once fully connected feels very sturdy. All parts are quality and I don't feel any of the included brackets or screws are subpar. Even with the fan at 100% it's volume is not horrendous. I would suggest a second fan added to the setup so you have push-pull airflow but the one fan does very well. I would recommended this cooler to anyone.

Cons: The only real con I have is that only one radiator fan is included. I think if a second was added it would be an even better value. Not enough of a con to remove an egg though.

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  • richard i.
  • 2/4/2014 8:17:24 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsJust Great

Pros: Keeps my cpu nice and cool. easy setup. works as it should

Cons: None

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  • john w.
  • 1/23/2014 6:10:20 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsgreat

Pros: works great..fx 9370 o/c'd to 5.0ghz and runs cool enough. i added a pull fan. looks great with led.

Cons: -1 egg instructions were more for intel config and kinda hazy for amd. they should just make a short vid and link to it on newegg or at least on their site. but everything is included.

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

  • Eric J.
  • 1/17/2014 10:48:09 PM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsEasy, effective, all-in-one water cooling option

Pros: I bought this to cool an Intel i7-3930K hexacore running at 4GHz. This was my first foray into water cooling, and I am glad I started with one of these units rather than a larger set-up with an external cooling tower which would take up a lot more space. My CPU runs about 80F (26C) at idle or while doing basic business tasks (Word, browsing). Under full load, it has not exceeded 120F (49C) and very quickly brings temps down after full load.

I mounted the water block with the hoses on the side, and the radiator block with hoses on the bottom, after reading other reviews about the gurgling noise at startup, and I haven't had a single gurgle. The radiator block is large and with the push-pull fan setup, it just barely has clearance for my outermost DIMM slots in an Antec P280 case with an ASUS Rampage IV Gene mobo. The stack of fan-radiator-fan will protrude deeply into your case, so plan accordingly if your DIMM slots are there.

The rubber hoses and connectors seem well made, I have had zero issues with leakage, and if memory serves, the block doesn't use water, but another coolant, which is reassuring.

Cons: The fans on the radiator are too loud. I hate fan noise and I was aiming for a whisper-quiet rig, which was one reason I chose an all-in-one water unit to cool the hexacore CPU. (Another reason was not wanting to fasten a 50 pound heatsink to the CPU.)

I replaced the radiator fan between the case wall and radiator with a Noctua NF-P12, and this was an improvement. The inner fan, which mounts to the other side of the radiator block, has cut-away screw holes for mounting, so unless you can hack off the corners of a replacement fan or find extra-long screws, you're stuck with it. It is by far the loudest fan in my six-fan case. The other fans are Noctuas and the two stock Antec fans provided for the top vents on the Antec P280, which are barely audible. With fan controller software, I can cut the RPMs down to an acceptable but not perfect level except when CPU runs at full load, when the only fan I hear is the Zalman. If you are a quiet freak, this might displease you, but otherwise, the fan noise probably won't bother you, and you can minimize it. Also, the fan has gotten a little quieter after the first week's "break-in" period. During the first week, the fan had a distinct high-pitched "scratchy" sound, which I assume was some bearing or cuff wearing in.

As others have noted, the instruction sheet is poorly written. Read it carefully before installing the CPU mounting frame, and play with the pieces first before attempting to fasten it to your board. After reading the reviews here, and the sheet carefully, I still goofed up the mounting pin placement, but since I checked alignment BEFORE pushing the pins down and inserting them all the way, this was easily fixed. I highly recommend double-checking that all the pins are lined up before pressing them down to mount the water block to the CPU. Otherwise, removal might be a pain.

Very minor, but I removed the stock cooling compound on the water block, which only covered about two-thirds of the copper surface and was a rather thick clay-like pad. I used Arctic Silver CMQ2 Ceramique to coat the entire copper surface to maximize contact to the CPU metal shield.

Other Thoughts: The light on the water block looks cool.

It's so effective at bringing the temp down quickly, I actually worry about the thermal stress on the chip material, but I have no idea if this is an issue. My CPU temp drops from 120F (49C) to 80F (26C) in about two seconds when going from full load to no load. This unit provides a TON of cooling power for my needs.

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

  • Greg L.
  • 12/17/2013 9:01:15 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsAbsolutly fantastic!

Pros: Smaller than the Corsair H100i and only a few degrees warmer in comparison. My Antec 902 case doesn't have a location for the H100i so I purchased this cooler because it is square not rectangle so it fits in the rear 120mm exhaust fan mounting area of my case and it is also thicker (52mm) than other 120mm radiators. I removed the stock fan and used two Scythe Gentle Typhoon High speed series 1850 RPM in a push/pull setup. I paid $15.99 each elsewhere. I would HIGHLY recommend putting these fans on this unit in a push/pull setup to get the most out of it. At full speed the Gentle Typhoons are quiet! I removed and replaced the stock Thermal paste on the water block with Arctic Silver 5. I have my I7-4770K overclocked to 4.3GHZ @ 1.254V stable. With this cooler and fan setup my Idle temp is average of 31C and under Aida64 max temp is 81C. Under gaming it only hits a max temp of around 71C. I'm used to air coolers and how the temp slowly drops after load testing BUT LOVE how the temp drops from 81C to 31C within 4 to 5 seconds with this water cooler!

Cons: Price is a little high @ $89.99 since the H100i is just a few dollars more. Luckily there is a $20.00 rebate making it $69.99!

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  • Norm M.
  • 12/9/2013 9:03:55 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsOverclocking

Pros: I have the LQ 320 cooling a FX 8320 overclocked to 4.1 Mhz Turbo is 4.5 turned on not auto. On a Asus M5a99x EVO Mobo/ 16gig of 1333ram overclocked.. So far temps of 12.1c - 37.9c core 1-8 depending on the load. For example browser open with 23 tabs and EVE and COH2 running at same time

Cons: Installation instructions almost worthless but if you take your time can be fig out,,, not even pictures to show in instructions

Other Thoughts: Haven't pushed it to its limits yet. Right now its 11.8c -12.3c just browsing the web' Used the fan that came with AZZA full tower and Zalmon for a push pull config. Not noisy...

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  • Mike E.
  • 12/2/2013 9:13:37 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsZalman LQ-320

Pros: Great cooler. Can overclock my cpu to 4.5 and get those extra fps for my triple monitor setup

Cons: None

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

  • Denis B.
  • 11/11/2013 2:50:55 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggs

Pros: Works exactly as expected the instructions are kinda lacking. Keeps my FX-8350 OC 4.4Ghz nice and cool even while playing BF4.

Cons: none

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

  • Tim D.
  • 10/29/2013 11:48:11 PM
  • Tech Level: Average
  • Ownership: 1 day to 1 week

3 out of 5 eggsGreat Product, Bad fan

Pros: Keeps my 3570k nice and cool. Radiator fits perfectly and all the cables, etc have the right length

Cons: The fan. I have never heard an "ultra-quiet" fan make SO much noise before. Switching the fan is completely necessary. I can't believe how disappointing the supplied fan is. I wondered if I was the only one... but only found out that the zalman's fan is just loud.

Other Thoughts: Pretty good overall, -2 eggs because of the fan. Yep, two eggs because now I just have a useless fan sitting around. I would've paid more if they supplied me with a better fan, but instead I had to go to the store to pick up a simple $10 fan.

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

  • Evan N.
  • 10/29/2013 7:50:42 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsGreat device, Lousy MIR system

Pros: Cooler working great, processor stays well below operating temperature levels even under intense usage.

Cons: Never received MIR on purchase even though sent in ontime.// would much rather have the discount up front.// installation is a bit more involved than expected and location of radiator for cooler blocks closing of case..

Other Thoughts: Mail In Rebates are an incredible waste of time and effort for little return. I've had two in the last year 1 From NewEgg the other From another competitor for a Cooler Master case.. I never received either of the rebates.. If you aren't going to come through or nitpick on the method?? Don't offer a rebate.

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

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