EKWB recently released a new lineup based on its EK-Vardar fans. The Vardar line was established in 2014 and created to be an industrial grade high-static pressure computer cooling fan. EK says the line was designed and built primarily for highest-performance computer liquid cooling systems, a fitting choice as the fan name "Vardar" is a term used for a cold northwesterly wind blowing into the valleys of Macedonia in the Balkans. The Vardar line has now grown into the new EK-Vardar EVO series of fans offering users the ER EVO which an extended range of PWM operation featuring a special start-stop function. The EVO "S" line for quiet operation, and the Furious Vardar EVO for moving the most air. 

EK says the electronics on the ER EVO fan has been tweaked so the fan stops spinning if the PWM signal falls below a preset duty cycle value. In other words, when the PWM duty cycle is set below 25-30%, the fan will stop spinning. Once the PWM duty cycle is increased, the fan will then spin up. Being able to stop and start the fan can bring benefits of a totally silent PC, prolong the life of the fan, and can slow the buildup of dust on the heatsink or radiator by only running when it needs to. 

The new electrical design uses actively cooled motor windings and Hydro-Dynamic bearings with a 50000 hour MTBF. The frame shape is said to provide optimal performance with either pull or push configurations. The shape of the frame allows the power cables to be routed through it when putting fans together on a radiator.

The Vardar EVO line comes in both 120mm and 140mm size. They all aim to be a high-static pressure, low noise profile fan with each using a 7 fan blade design. Vardar EVO fans come in single (all black or all white) and two-tone (black with gray blades). The original Vardar's maximum fan speed was designated by letter/number combination like the Fujita scale F3, F4, etc. The higher the number, the faster the fan would run. The EVO series changes that up usingnd has different names altogether. The basic EVO 120S/140S model spins up to 1150 RPM, the 120ER and 140ER models (ER designates the start/stop ability) reach 2200 RPM, while the EK-Furious Vardar reaches 2500 RPM for the 140mm, and 3000 RPM for 120mm. 

 

EK-Vardar EVO ER fans are already available at the EK Webshop and online through EKWB's Partner Reseller Network. The EK-Furious Vardar EVO and white EK-Vardar EVO fans will be available in the next few weeks. 

EK-Vardar EVO 
  Vardar EVO 120S Vardar EVO 140S Vardar EVO 120ER Vardar EVO 140ER Furious Vardar EVO 120 Furious Vardar EVO 120
0dB Technology N N Y Y N N
Max. Speed 1150 RPM 2200 RPM 3000 RPM 2500 RPM
PWM Duty Cycle 60-100% 25-100%
(Extended Range)
40-100%
Power Draw .55W 2.16W 5.64W 9.07W
Max. Airflow (CFM) 40 64 77 108 107 144
Static Pressure (H20) 0.92mm 1.08mm 3.16mm 3.15mm 5.71mm 5.28mm
Noise Level (dBA) 23.7 26 33.5 40.7 42 48.4
Shaft Bearing Hydro-Dynamic
MTBF 50000 Hours @ 40C
Price (inc. VAT) 14.95€ 18.95€ 16.95€ 20.95€ 16.95€ 20.95€

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Source: EKWB

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  • Gothmoth - Wednesday, August 09, 2017 - link

    noctua needs to build that into their fans. Reply
  • docbones - Wednesday, August 09, 2017 - link

    lol I thought it was a Vader fan. Reply
  • BurntMyBacon - Monday, August 14, 2017 - link

    They were considering the Vader series, but they choke too much. Reply
  • HomeworldFound - Wednesday, August 09, 2017 - link

    Vardar fans cost too much if you're considering them for watercooling. EK tried to make it look like they were the replacement for Gentle Typhoon fans, they aren't. Reply
  • vred - Wednesday, August 09, 2017 - link

    It's Vardar, not Varder. Spellchecking much? Reply
  • Communism - Wednesday, August 09, 2017 - link

    I guess they (fan designers/manufacturers) finally got a high RPM hydro-dynamic bearing fan design working without reliability issues, probably by those ventilation holes to stop the bearing/motor from overheating. Reply
  • TheWereCat - Thursday, August 10, 2017 - link

    Wait, my cheap 140mm fans do this as well. 30% PWM or lower will turn them off. They also won't start spinning unless they are set to 55% but that is a different story. Reply
  • Comdrpopnfresh - Sunday, August 13, 2017 - link

    Do these fans cut the current if the duty cycle is below a threshold? I don't see a difference between this and a value-grade fan that needs to be set to '30%' to begin spinning. Reply
  • jerrycorley221 - Wednesday, August 16, 2017 - link

    Nice article pure informative and knowledgeable thank you for sharing it. http://www.vidmateappforpc.in/ Reply

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