delta high whining sound

[hyperbob]

My delta 60mm 38cfm cpu fan is getting a tiny bit annoying. I don't mind loud low sounds but this one has a high whining. Is there a way to quiet it down?

[Oni]

Make a 7 volt mod. You'll lose some RPM's and therefore some cooling potential, but what you lose you gain in hearing. My temps only went up like 2 or 3 degrees Celcius when I did it. Well worth it, in my opinion.

[eobard]

The 7 volt mod is a good suggestion. If you aren't using a duct directly over the cpu then putting sound insulation in the case might help too.

This is a belated suggestion seeing as you already have the Delta but I just got a Thermaltake Volcano 6 cu+ and statisticly it's supposed to be just as good as a Delta on a Global Win but with less noise. I've never used a Delta personally but I listened to the recorded sounds of it on that fan noise web site and my Volcano fan is definately lower in pitch if not volume. And my temps are massively low! 35c idle 37c SETI load!!!!! 38c with Sandra 2001 burn in after 12 minutes!!!! That's lower than my pre-overclock temps! I'm sold for life! (Watch my chip explode now, stupid Eddie Murphy and his dahnm law!!)

**edit: I should add that my duct is responsible for a good deal of the cooling effet as well, the Volcano 6cu+ alone wouldn't be as good

[train22]

carefull though, I suspect the 7v mod to be bitty bit dangerous to the PSU. It shortens it's life

[outhouse]

This post comes up very often and the answer has always been in the same place :) In the tips section, I think its in the heatsink reviews and performance section, look for the silicone trick.

Basicaly what you do is put four large drops of silicone sealant on top of your HS [in the corners] put 2 pencils across the HS and then set the fan on top of the pencils until the silicone is dry take the pencils out then fill the gap with more silicone or black tape this cuts out the vibrations which cause most of the noise, ive done it to mine and i run a duct which amplifies the sound and now its not that loud you can hear the air moving as much as the sound of the fan and thats about it. Dont mess with the 7V mod until you try this if you dont like it the silicone can always be removed.

I just noticed your thread says your kind of stable and this is another reason not to do the 7V mod as you will loose what stability you have, if you install a duct [cost 0 $] you should become fully stable as mine saves me about 4 to 6C

[Mr.Lansing]

I agree the DELTA Fans are like 747's

[Über~PhLuBB]

I'd suggest you just solder in a simple rotary potentiometer. Then you can dial up your own speed. You'll have to ask around for model numbers and such though. (Or you could buy one, at places like www.directron.com)

[William]

the 7V mod is easy to do, but not good for the psu at all, i believe I have heard ee people scoff at this idea. Rheostats are the way to go.

[lennytiger]

the seven volt mod or the silicone trick works well there more info in the tips section.


PSU life is only shortened by a tiny bit the PSU in my Athlon 1.2 has been going 24/7 for a week now and I have seen no problem with voltages or PSU

[hyperbob]

what can i use for a duct?

[Crash893]

laundry drier duct parts at a hardware place

[Amedeo602]

Originally posted by hyperbob
My delta 60mm 38cfm cpu fan is getting a tiny bit annoying. I don't mind loud low sounds but this one has a high whining. Is there a way to quiet it down?


you can fix it with <$5 and wire cutters/strippers

just get a rheostat and install it

[eobard]

Originally posted by crash893
laundry drier duct parts at a hardware place

I've seen setups using dryer duct parts, I find they look cheesy. I use stereo speaker sound tubes. You should be able to get them at any flea market or car stereo store where you can buy parts to make your own speaker boxes. Here's a few pics:

[eobard]

Would have been nice if I actually included the picture for this one!!!

[eobard]

Let's try this again, sorry folks:

[Ultra]

You can use a Delta 80mm 68cfm fan instead of the 38cfm. The 68cfm is still loud but not high pitch. But the most important thing is the boost in performance. You will see a few degrees lower with the 68cfm. Read the benchmark I posted.

80mm fans can be slapped onto the SK6 by turning the fan diagonally and clipping the 2 opposite corners. No need for those stupid adaptors (adaptors don't work with SK6 anyway).

Again, make sure to read my benchmark!! Geez, I can't believe nobody reads my post. I thought it was very interesting & useful info.

Here's the link to that post:
http://forums.overclockers.ws/vb/showthread.php?threadid=38523

[outhouse]

Originally posted by hyperbob
what can i use for a duct?

I'm using a small cardboard box the same size as the HSF, I left 4 small flap's [trimmed to fit] these go through my case cover and then I have a old speaker screen cover cut to fit over the top to hold it all in place [also works as a filter] just about anything will work but stay away from metal or anything that will conduct electricity. one note make sure the duct does not touch the HSF or you will end up with more noise.

Stay away from anything that will slow the speed of your fan down such as potentiometer's as you will only run hotter when done.