JUKE 179r wrote:What type of fan is in the 4000? Is it like a desktop computer fan (12volt, 80mm)?
Over on MV Nation, someone replaced the stock MV8000 fan with a quieter desktop computer fan. They said it was definitely a noticeable difference.
http://mvnation.com/phpBB/viewtopic.php?f=30&t=14538&p=115253&hilit=fan#p115253
Good find JUKE.
Heres the key post from this thread re: important specs to look for on fans, noise levels, air flows etc.
Looks as if this "NOCTUA NF-R8" fan has the BEST specs..
http://mvnation.com/phpBB/viewtopic.php ... an#p115253"Those fans really aren't as silent as they advertise.
NMB Tech (original MV 80mm)
Speed 2,200rpm ± 10%
Noise Level - 26 dBA ± 10 % -
Air Flow 23.3 CFM
* This fan runs in the MV at full power- 12v
ZALMAN ZM-F1 led in noiseless mode
Speed - 1700rpm
Air Flow- 20.6
Noise level- 20db
* At full power(12v) the Zalman is louder (34db) than the MV's factory fan.
Noctua NF-R8 - at only 7v in Ultra low noise mode
Speed- 800 RPM
Noise Level - 7db
Air Flow- 26 m³/h
About the numbers - Even at less than half the speed of the othe two fans the Noctua destroys both in terms of both noise and airflow. So just because a fan is marketed as silent , it doesn't always pan out in the real numbers. I would skip the bling "