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140mm fan Thermaltake is the loudest in my system...
Posted: Thu Sep 11, 2008 8:38 pm
by kenratboy
...I have this PSU (or VERY similar, 550w, modular cables, and 140mm fan):
http://www.newegg.com/Product/Product.a ... 6817153051
Works fine, but after going psycho on my ATI 4850 (end result is a S1 and 120mm 10dB. fan), the PSU is now the loudest thing in the computer by far (which is still pretty quiet).
My goal is to buy a new 140mm fan and install it, however, I am not sure how many RPM/CFM the current fan is, and I really don't want to go lower and risk killing the PSU or just running it too hot (I know I will void the warranty by doing this, but whatever...)
Do you think a fan like this would work well, and provide enough air flow?
http://www.newegg.com/Product/Product.a ... 6835106115
It is listed as 16dB., which I am sure is going to be fine.
Any advice?
Thanks!
Posted: Thu Sep 11, 2008 11:54 pm
by edh
I'm not surprised that something from Thermaltake is loud.
Why not open the PSU up and see what fan they have used? Even if it is an OEM only fan it should have some kind of product code on it which you can google to find specs for it.
Posted: Fri Sep 12, 2008 1:38 am
by jaganath
never, EVER take Thermaltake specs as gospel. if they have ever built a quiet product it is only by complete accident. quiet 140mm fans are quite few, Yate Loon is pretty much the only one:
http://www.jab-tech.com/140mm-Fans-c-282.html
Posted: Fri Sep 12, 2008 8:32 am
by kenratboy
Hmmmm, those still see a little loud (25dB., but no idea how loud the current one it. All the other fans (CPU and GPU cooler, and two case fans) are virtually noise-free.
http://www.coolerguys.com/840556086390.html (same one I think).
Posted: Fri Sep 12, 2008 8:33 am
by kenratboy
edh wrote:I'm not surprised that something from Thermaltake is loud.
Why not open the PSU up and see what fan they have used? Even if it is an OEM only fan it should have some kind of product code on it which you can google to find specs for it.
Good point.
Posted: Fri Sep 12, 2008 9:31 am
by jaganath
Hmmmm, those still seem a little loud (25dB)
25dBA is actually pretty quiet (see typical sound levels
here) and the important thing is that it's an
honest rating. TT's marketing people are well-aware that most people just believe whatever's stated on the product page, so they make up a number (like 16dB) and stick it on there. technically it's not lying because they don't say how they measured 16dB (ie from 100m away virtually every fan is silent). also see
this thread for more testimonials on the YL.
Posted: Fri Sep 12, 2008 3:44 pm
by SnooP
According to this review its already got a decent yate loon fan in it, but fan control isn't agressive enough.
http://www.xbitlabs.com/articles/cooler ... u7_18.html
Instead of replacing fan, i'd suggest adding a a couple diodes in series with the fan, or resister to lower the fan speed. That fan should be silent enough when run say 200-300rpm lower.
Posted: Fri Sep 12, 2008 11:36 pm
by thejamppa
I kinda agree with SnooP. 140mm fans are growing in numbers slowly but they're not standard like 120mm fan and depending where you live getting 140mm fan might be seriously hard. However adding diode etc does require some soldiering skills which not all peoples posses.
Posted: Sat Sep 13, 2008 4:08 am
by lodestar
What are your 4850 idle and load temperatures?
Posted: Sat Sep 13, 2008 5:45 am
by kenratboy
lodestar wrote:What are your 4850 idle and load temperatures?
35C idle, and 55c load. Its nice.
Posted: Tue May 26, 2009 3:25 am
by petercrab
SnooP wrote:Instead of replacing fan, i'd suggest adding a a couple diodes in series with the fan, or resister to lower the fan speed. That fan should be silent enough when run say 200-300rpm lower.
Please explain how a diode can lower fan speed. I understand resistor, but a diode just make current go one direction.