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Cougar Vorex fans make a metallic noise after installation

post #1 of 10
Thread Starter 
I just installed 2 Cougar Vortex CF-V12HP 120mm PWM fans on my D14 heatsink. I've been noticing that at less than full rpm on the fans, they make a slightly metallic sounding "grinding" noise. Is that normal for these fans?

The "grinding" noise goes away at higher rpm, but the fans themselves run between 850-950 rpm at idle and that is where the noise is most prominent.
post #2 of 10
No thats not normal. They are not mounted vertically are they? I assume not since you have them on the D14. The only way they really make noise is if they are mounted blowing upwards.
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post #3 of 10
Thread Starter 
Quote:
Originally Posted by Jolly Roger View Post

No thats not normal. They are not mounted vertically are they? I assume not since you have them on the D14. The only way they really make noise is if they are mounted blowing upwards.

they are not mounted vertically. the heatsink is mounted so that it draws air from the 5.25" bays. its a very slight metallic noise. i thought it my be the fan blades lightly brushing up against the heatsink fins, but i positioned the fans on the heatsink so that there was 3-4 mm between the fins and the back of the fans.
post #4 of 10
I guess you could try and clean and relube them, but it would obviously void any warranty. HERE is a guide to do it.
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post #5 of 10
Thread Starter 
Quote:
Originally Posted by Jolly Roger View Post

I guess you could try and clean and relube them, but it would obviously void any warranty. HERE is a guide to do it.

i like the idea of it, but it's a brand new fan. bought on april 1st, received april 4th from newegg. should i RMA it?
post #6 of 10
Quote:
Originally Posted by Diablo85 View Post

i like the idea of it, but it's a brand new fan. bought on april 1st, received april 4th from newegg. should i RMA it?
Absolutely. Sounds like the bearings grinding against something metallic
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post #7 of 10
Yeah, might as well.
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post #8 of 10
Thread Starter 
Quote:
Originally Posted by Jolly Roger View Post

Yeah, might as well.

time to figure out which fan it is then. ugh.
post #9 of 10
Thread Starter 
found the culprit. rma approved from newegg, will be going to the ups store tomorrow to send it out.
post #10 of 10
Cool. Hope the new is much better for you.
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