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- Pensacola, Florida USA
ROFL......I wasn wondering if Tim was gonna move this. =)
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Noisy Delta 38cfm cure...(from front page)
- Thread starter Mr B
- Start date
OP
- Joined
- Dec 28, 2000
- Location
- East Bridgewater, MA
- Thread Starter
- #22
Yeah, Shadow....frankly I didn't expect this to take off the way it did.......otherwise I would have started it here in "Cooling". Didn't expect as many replies to the thread as there have been.
Well, assembled, and installed. I took a bunch of pics w/ the webcam (sorry for the crappy pics, but I don't have a digital camera, and the webcam is better than nothing. Here goes....
I've got a half dozen or so pics to post...I ask that I get a chance to post all of them before you reply. TIA !! I'll post my results and opinions at the end.
The first pic here, is the silicone setting up, with the pencils still in place:
Well, assembled, and installed. I took a bunch of pics w/ the webcam (sorry for the crappy pics, but I don't have a digital camera, and the webcam is better than nothing. Here goes....
I've got a half dozen or so pics to post...I ask that I get a chance to post all of them before you reply. TIA !! I'll post my results and opinions at the end.
The first pic here, is the silicone setting up, with the pencils still in place:
OP
- Joined
- Dec 28, 2000
- Location
- East Bridgewater, MA
- Thread Starter
- #23
Here's a pic of the assembly after curing...It held!! quite well in fact,....
Reminescent of the old "Superglue" TV commercials...
Reminescent of the old "Superglue" TV commercials...
OP
- Joined
- Dec 28, 2000
- Location
- East Bridgewater, MA
- Thread Starter
- #24
I still was concerned about having some sort of restraint in place, just in case the silicone does fail. I used some 3/32" automotive wire, and some electrical terminals, and constructed this.....
OP
- Joined
- Dec 28, 2000
- Location
- East Bridgewater, MA
- Thread Starter
- #25
Which I attached to the heatsink shroud, and fan like so...
If the fan ever did fall off, this would keep it from going too far, but doesn't support weight while mounted. Therefore doesn't affect the fact that the fan is "Rubber mounted"....
If the fan ever did fall off, this would keep it from going too far, but doesn't support weight while mounted. Therefore doesn't affect the fact that the fan is "Rubber mounted"....
OP
- Joined
- Dec 28, 2000
- Location
- East Bridgewater, MA
- Thread Starter
- #26
Another view....
OP
- Joined
- Dec 28, 2000
- Location
- East Bridgewater, MA
- Thread Starter
- #27
Sorry for the delay...had it all typed out and hit the damn "cancel" button by accident.
Well, how does it work??
Not as well as I had hoped for. It did somewhat quiet the roar of the Delta but not much.
On a scale of 1 to 10, with 1 being silence, and 10 being the Delta running with the case side off, I'd have to say the niose level is about an 8.5.
By itself, it really doesn't seem to make much of a difference. Used in conjunction with dropping the voltage run to the fan down to +7v, might make all of the difference in the world. I really had expected more (or less, noise that is) out of this mod.
Items used:
Alpha PEP66T, with Delta 60x60x25mm, 38 cfm "hair drier"
Permatex Clear RTV Silicone adhesive sealant
electrical tape
6" of 3/32 gauge auto electrical wire
3 electrical terminals
This is an "almost" free mod. All together, the stuff you need should run about $5, with the most expensive thing being the tube of silicone.
Every little bit of noise reduction helps, if you take umbridge to the noise level of this particular fan.
Temps don't seen to be affected at all, btw....up or down.
Again, I really hoped this might drop the noise level down more, maybe I expected too much....I wasn't expecting the level to drop to almost total silence, but I was hoping for a bit more.....
Mr B
Well, how does it work??
Not as well as I had hoped for. It did somewhat quiet the roar of the Delta but not much.
On a scale of 1 to 10, with 1 being silence, and 10 being the Delta running with the case side off, I'd have to say the niose level is about an 8.5.
By itself, it really doesn't seem to make much of a difference. Used in conjunction with dropping the voltage run to the fan down to +7v, might make all of the difference in the world. I really had expected more (or less, noise that is) out of this mod.
Items used:
Alpha PEP66T, with Delta 60x60x25mm, 38 cfm "hair drier"
Permatex Clear RTV Silicone adhesive sealant
electrical tape
6" of 3/32 gauge auto electrical wire
3 electrical terminals
This is an "almost" free mod. All together, the stuff you need should run about $5, with the most expensive thing being the tube of silicone.
Every little bit of noise reduction helps, if you take umbridge to the noise level of this particular fan.
Temps don't seen to be affected at all, btw....up or down.
Again, I really hoped this might drop the noise level down more, maybe I expected too much....I wasn't expecting the level to drop to almost total silence, but I was hoping for a bit more.....
Mr B
- Joined
- Dec 20, 2000
- Location
- Pensacola, Florida USA
before you started would you have rated the noise at 10? so you dropped 1.5?
Dunno bud....looks like a very nice job with piss poor results. For the effort you put in it, is it worth the gain?
Dunno bud....looks like a very nice job with piss poor results. For the effort you put in it, is it worth the gain?
- Joined
- Jan 12, 2001
- Location
- Knoxville,Tn
Thanks for the excellent "article" Mr B. I guess you just saved me from going through all that effort. You did a great job. Sorry the results weren't as good as we hoped for.
OP
- Joined
- Dec 28, 2000
- Location
- East Bridgewater, MA
- Thread Starter
- #30
OpenFriday had posted in another thread the effects of reducing voltage to +7v to this fan, and that it dropped the noise level substansially.
I'm going to try this, with the silicone in place.....see what the two do together....
Yeah...piss poor results. Coulda been better, I think. Perhaps the difference in construction of the two hsf's plays a role here, as well. Had fun doing it, though!! =)
Mr B
I'm going to try this, with the silicone in place.....see what the two do together....
Yeah...piss poor results. Coulda been better, I think. Perhaps the difference in construction of the two hsf's plays a role here, as well. Had fun doing it, though!! =)
Mr B
OP
- Joined
- Dec 28, 2000
- Location
- East Bridgewater, MA
- Thread Starter
- #31
Dropping the voltage to the fan to +7v does indeed quiet the Delta's roar. Temps went up a degree or three, though. If your temps are low to start with, this works well. If you have high temps, you be best served leaving it at 12v.
Mr B
Mr B
- Joined
- Jan 13, 2001
- Location
- Bolton, UK
I would say that doing this to a single fan probabally wouldn't make that much differance, if you hook up a delta and hold it be the wire whilst it is spinning so there is nothing to vibrate against it still roars, part air flow part whine, I have tyred this before on a pc with about 4 80mm fans in where each fan on it's own wasn't that loud but in the case together tit was very loud, and this cut the sound down to slightly above the noise of one of the fans alone
K
Kryten
Guest
Just wondering if rubber grommets would have worked any better...
Sorry to hear it did work as well as you hoped Mr B
Sorry to hear it did work as well as you hoped Mr B
OP
- Joined
- Dec 28, 2000
- Location
- East Bridgewater, MA
- Thread Starter
- #34
Well, here it is...
BUMP.
Had to dig back quite a few pages for this...=)
Mr B
BUMP.
Had to dig back quite a few pages for this...=)
Mr B
It seems to me that if you take a fan that is noiseless when unattached and dangling by the power wires and that produces significant noise when actually screwed down to something that the source of the noise is the fact that the blades of the fan are not balanced. The wheels on your car have been balanced right? Well, for fans that spin in the high rpm range even a fraction of a gram difference in the weight of the fins would be enough to produce significant vibration. So, you've got to balance the thing. Perhaps you could hang it from a string from the very center at the axis and to whichever side it tips take a little bit of material off. You'd have to have just the fins though without the mount. Just a thought.
If it is noisy when it's unattached and hanging from the power wires, it's just a noisy fan.
If it is noisy when it's unattached and hanging from the power wires, it's just a noisy fan.
- Joined
- Jun 4, 2001
i did the silicone trick on my gladiator (which i've sold since). it didn't lower the sound enough for me to keep it.
the question about whether the silicone would hold it or not.
with the gladiator, it has that shroud w/ holes for screws, well i just put enough silicone so that it oozed thru the hole and formed a bulb on other side of screw hole. this produced a stopper at the other end so there should be no problems w/ silicone holding fan in place.
I think that the gladiator is a particularly good candidate fo rthis because of its shroud.
the question about whether the silicone would hold it or not.
with the gladiator, it has that shroud w/ holes for screws, well i just put enough silicone so that it oozed thru the hole and formed a bulb on other side of screw hole. this produced a stopper at the other end so there should be no problems w/ silicone holding fan in place.
I think that the gladiator is a particularly good candidate fo rthis because of its shroud.
E
ebola
Guest
i think ive just gone deaf since the sound of the delta is no longer bothering me. my case is open and its plugged into a 4 pin plug. maybe it needed some burn in to quiet down.
OP
- Joined
- Dec 28, 2000
- Location
- East Bridgewater, MA
- Thread Starter
- #38
I just finished some benchmarking comparing the hsf setup in this thread, to the new Millenium Glaciator. You've seen the pics of the Alpha above, I put a pic of the Glaciator below...
Alpha PEP66T vs Millenium Glaciator
Tests were both run today, using my Celeron 600 @ 1008 MHz, 2.05v. Ambiant temperature at or about 78f/25c Temps measured with Asus Probe.
Test 1; PEP66T, with Delta 60x60x25 fan, 38cfm, silicone mounted to sink, "blowing" on sink
IDLE Temp 20 - 21c (idled for 5 minutes to stabilize)
LOAD Temp 28 - 33c (running Prime95 Torture Test, 30 minutes)
MB Temp 29c throughout test
FAN rpm 6490 idle, 7031 load
Test 2: Millenium Glaciator, as shipped, unmodified
IDLE Temp 21 - 23c (idled 5 min)
LOAD Temp 33 - 34c (Prime95 Torture Test, 30 min)
MB Temp 28c idle, 29c load
FAN rpm 4891 idle, 5273 load
I'm sure most of us are familiar with the "ear splitting whine" of the Delta 38cfm fan. It's loud. VERY loud. Even with the case sides on, I can hear mine running outside my computer room, and down the hall. ??? That's how the Alpha above sounds.
The Glaciator, on the other hand, cannot be heard with the case side on, over a pair of 92mm case fans (that aren't very loud, either!). This is what impressed me most about this hsf. It's lack of noise. This whole unit is a well designed piece. That's a fairly moderate to heavy overclock goin' on there, and it kept the temps under 35c, and drops down to idle temps fairly quickly after load is removed.
The Alpha was a couple of degrees celcius cooler, but the Glaciator was significantly more quiet. If you need the cooling capabilities of the Alpha/Delta, but don't want the noise, this new hsf might be just what you're looking for.
Mr B
Alpha PEP66T vs Millenium Glaciator
Tests were both run today, using my Celeron 600 @ 1008 MHz, 2.05v. Ambiant temperature at or about 78f/25c Temps measured with Asus Probe.
Test 1; PEP66T, with Delta 60x60x25 fan, 38cfm, silicone mounted to sink, "blowing" on sink
IDLE Temp 20 - 21c (idled for 5 minutes to stabilize)
LOAD Temp 28 - 33c (running Prime95 Torture Test, 30 minutes)
MB Temp 29c throughout test
FAN rpm 6490 idle, 7031 load
Test 2: Millenium Glaciator, as shipped, unmodified
IDLE Temp 21 - 23c (idled 5 min)
LOAD Temp 33 - 34c (Prime95 Torture Test, 30 min)
MB Temp 28c idle, 29c load
FAN rpm 4891 idle, 5273 load
I'm sure most of us are familiar with the "ear splitting whine" of the Delta 38cfm fan. It's loud. VERY loud. Even with the case sides on, I can hear mine running outside my computer room, and down the hall. ??? That's how the Alpha above sounds.
The Glaciator, on the other hand, cannot be heard with the case side on, over a pair of 92mm case fans (that aren't very loud, either!). This is what impressed me most about this hsf. It's lack of noise. This whole unit is a well designed piece. That's a fairly moderate to heavy overclock goin' on there, and it kept the temps under 35c, and drops down to idle temps fairly quickly after load is removed.
The Alpha was a couple of degrees celcius cooler, but the Glaciator was significantly more quiet. If you need the cooling capabilities of the Alpha/Delta, but don't want the noise, this new hsf might be just what you're looking for.
Mr B
Nice job Mr B. I use a GLADIATOR/DELTA with neoprene rubber about 1mm thk in triangle shapes(could be thicker) on the four corners and it did help. I don't get the whine with the gladiator/delta as i did when i had the pal6035/delta and i think it has to do with the height of HS and that the pal when blowing down the air is being pushed out the 4 sides of the pal6035 as with the gladiator its only pushed out 2 sides. I also use a 92mm fan on my plexiglass sidepanel facing my HS to feed it cool air all the time especially with the A/C on. What also did notice about your results Mr B is that the ALPHA's with the right fan (DELTA's) can still give these new HS's a run for their money. So don't count the ALPHA'S out anytime soon I also use sound deadening material from a CarAudio shop. Just my 2 cents.
