For those who hate the noise generated by a detla38...this might interest you

[eLiu]

Perhaps some of you here have seen this...maybe some of you havent?

Anyway, at Overclockers.com, there is an article about how to quiet the Delta 38 fan.

Goto the site, then click on "reviews". Then go over two columns, and down 4 rows, to "heatsink reviews and tips". The article is titled "Quieting the Delta 38CFM fan".

Anyway, it discusses an interesting method for quieting HSF units that use the delta...it says that the noise reduction was very significant, although performance impacts were not mentioned.

-eric

 

[DisposableHero]

dont see how that would make it much quieter

 

[Tonec]

You'll get more responses if you give a direct link. People here are lazy

 

[eLiu]

id give a direct link, but the site wont let me

i dunno how it would quiet it...buut, the guy says the reduction was substantial...sooo...maybe someone would give it a try?

 

[AmazonRasta]

Linkified.

My CAK-38 came raised like that with screws and mounts. I've noticed substantial noise reduction over my old FOP-38, on which the Delta was just attached to the heatsink with a couple of metal braces.

 

[Tonec]

I've tried something very similiar only using rubber grommets. Doesn't work very well. If you're going to have the fan blow down as shown, the shroud be removed. Creating space will nothing to reduce the hairdryer whine of the delta. The delta is powerful enough to even vibrate through 2 grommets. Reversing the fan to suck and using grommets was the best solution in my case.
I've tried the following 60mms with my 6035
YStech - whines/vibrates
delta38 - way too loud/vibrate
taisol(delta)slim - good all around, lower pitched, vibration is manageable.
VolcanoII - 36cfm? Not even close. basically a ystech clone
adda - 16dba as close to silent as they come, the alpha's mass can compensate for the lower cfm in most cases

Right now I'm using an Panaflo80mm sucking/80mm adaptor - expensive solution but just as quiet and cools better than the adda.

 

[whitelight]

i don't think that will make the fan quieter because the sound comes from all the air it pushes through only 60mm. you can reduce the voltage of the delta, but would also make the delta less effective, or get an 80mm>60mm adapter.

 

[McCarthy]

Of course it can't eliminate the air noise, but it can decrease that noise and the vibration both.

If it's making noise, at the fan level, then that vibration (noise) is transmitted through the heatsink, through the CPU, through the socket, through the motherboard, through the mounts, through the case where it is amplified. Then there's the vibration of the motor being transmitted the same way, putting my hand against the case makes it ever so obvious that's being trasmitted. (that, or one of my HDs warped)

The other thing it does is to allow the air a chance to take a smoother angle off the fins of the fan onto the pins of the sink. So there should be less shearing sound, though on some sinks you'll get a less effective air flow too. His tape seal should make the adaptation here work pretty much the same as stock, little problem with the corners of the shroud, but I'd guess it cools about the same in that instance. Other sinks that gap might be harder to fill.

The grommets described...were you still screwing down through them? If so then no, they couldn't do much as the screws would be the path of transmission. Should have helped a wee bit though.

It makes sense. It's not a cure all of course though, just a tweak.

--Mc

 

[Crittias]

Direct link:

http://www.overclockers.com/tips457/