SpyderCat - I am not sure you can assume anything about pressure when you undervolt a fan. Panaflo are the only folk I have seen who show different curves at different voltages. Except those graphs are really small (imprecise) but it does seem to me that the shape of the curve is different at diffe...

This thing look GOOD.
Tell us more, pretty Please...

15 minutes later my computer is as noisy as with Truepower. This is while my computer is idling on Windows XP, case temperature around 32-31C. Had the same problem when I ducted the CPU-exhaust-air into my Nexus 3000. Then I ducted the CPU-exhaust-air to the exhaust-fan. Problem solved. Mobo temp. ...

I was interested in what pressure undervolted fans would develop. The graph shows some results from different manufacturers, and the purple points represent the 80 mm Panaflo fans. I think the plotted points are sufficiently close that we can accept this as a reliable graph. I'm especially intereste...

$348.95

I'll wait till the price comes down a bit more

Yep. Getting more work units feels better, but they have done a good job with the "score" system to decide how much actual work has been done. Switches or no, your machine will still crank out the same amount of score in the same period of time. -mjrusso45 9.1 Ghz of folding power :twisted: Then I ...

Hello: Here's a question for the 3 or 4 folks on the SPRC Folds team that seem to be averaging much higher scores with a lower number of units Neil, I'm not one of the guys you mentioned, but... Start Folding@Home with the switches: -advmethods -forceasm This way you'll get a more efficient program...

Q-fan works fine for me on a ASUS A7V333.
It can take up to 350 mA, and I have both my CPU-fan and the extraction-fan regulated by Q-fan.
Under full load (Folding@Home) both fans are probably running at 8 volts.
The 60 mm CPU-fan revs at 2636 rpm. Not silent yet, but close.

Han.

Ok, time for one of us old-timers to put you kids to shame. Here's My List : 5. Decided that the case itself was the problem, so I built a new one out of my Desk ! 1 to 4 OK, at 5. Let's say you had a bad day. 11. Ducted CPU fan to 120mm case fan. 6 to 10 OK again, nothing special yet, but OK. 11. ...

This one goes up to the usual 18 gauge. http://www.builderdepot.com/browse.ihtml?pid=16732&step=5&prodstoreid=244# This is a strange ad. I can't think of a nibbler cutting wood. :shock: Isn't it just a cheap saw? IMHO: Get good (or very good) tools, and if anyone asks to borrow them, just say NO. :...

Guys, I think you're way off course. Wouldn't this be a much more versatile and cheaper tool ? http://www.directron.com/nibbletool.html Finish it off with a Dremel or a rotating sander and your done. edit: and here another: http://www.sell.com/2CTV2 and this http://www.robotstoreuk.com/HOBBY-TOOLS/H...

Also re: ducting whats the best material and easiest way to do it? I used PlastaZote foam, and am very happy with it http://www.atlasortho.com/sub%20Products/Materials/diabeticandsoftfoam/Plastazote.htm And even kids can work with it... http://www.martindalejmi.herts.sch.uk/our_work/year_4plastazot...

Trader,

Panaflo fans ARE available, see for your self.
http://forums.silentpcreview.com//viewtopic.php?t=3817
And they are cheaper than Papst fans.

At the moment I have a Papst 19 dBA fan, and will replace it with a Panaflo.
Don't repeat the same mistakes others have made.

Han.

Hi Edward, There is only one way I can explain your problems. The cool air you are blowing into your case, goes out the back almost immediatly. When I'm right, then a temp. reading in the direct environment of your exhaust fans should read clearly below your case temps. I really can't imagine that y...

Here is another site that is supposed to sell only quiet computer stuff. http://www.whynoi.se/shop/productsByCategory.asp?intCatalogID=1 Maybe you see something you can recommend in one of these to sites. Thanks! http://www.whynoi.se/shop/product.asp?intProdID=33 probably isn't a bad choice. But fi...

Its really not *that* expensive to ship fans from the US. If you were buying say 3 or 4 80mm fans its usually no more than $9 or so shipping... but it quickly becomes more expensive. I've been shopping on a site that would ship international orders(the cheap sites won't accept international orders ...

icchan wrote:total dB = 10* log[10^(Fan#1/10) + 10^(Fan#2/10) + ...]


I found the formula at the bottom of this page:
http://www.cpemma.co.uk/index.html

Icchan, Thanks man.

I could have searched ages before I found this again.

Regards, Han.

Somewhere, and I think it was on this forum, I've seen a formula to calculate the summed noise of several sources.

Something like: 10 dBA + 12 dBA + 12 dBA = 18 dBA

Seriously, I searched for an hour...

Could somebody point me in the right direction please ?

Regards, Han.

So we get back to two heatsinks, one copper, one aluminum. Suspend them both in air, heat them to the same temperature, then remove the heat source. The aluminum heatsink will cool back to ambient quicker...he admits it as such. Bluefront, So we get back to two heatsinks, one copper, one aluminum. ...

Well, since this topic is back up, allow me to post another pic - this is with my Tbred B 1700+. There is a Panaflo L1A mounted on the case, exhausting from an AX-7 without a fan on it. That's the way to go Mark ! At what volts are you running your Panaflo L1A ? Did you fit a shroud around your AX-...

Maybe this source can shed some light on the subject.

http://www.7volts.com/heatguide.htm

Not inferior, equal, as he said.
At least when it comes to transferring heat from fin to air.

Spydercat may well be right, there was a 12v Vantec Stealth on the CPU ducted as an exhaust (which, btw, worked very well for improving case temps, based of my northbridge temps), but no intake fans. Right man, 100%. Don't pollute your case with hot air ! I'm glad my hunch might have been the cause...

With regards to the fried & died PSU: Only applicable when there is another extract fan present: I think that this might be caused by the other (more powerful) extraction fan(s) creating so much under-pressure in the case that the 5 volts PSU-fan couldn’t extract air from the case anymore. In this c...

EXtra fan is not shown in photo I installed later. It is on the back of the case next to cpu. Mobo temps are ~60oC and CPU ~59oC in BIOS and also the same in winbond hardware doctor, with a liitle rise when load increases. Then I would say your sensors are screwed up. There is no way you can heat u...

Hi Knoba, My case has one extra fan that is blowing air out (tried both directions, but blowing in gave no effect). I don't see that extra fan. Is it in the front, low down? What are your mobo temps with the case closed? Can you observe the cpu-temps immediately after 'cold'-booting? Perhaps from th...

I want to do some experiments, and when you want to compare different solutions it's easier when you have plenty resources. For me, this modding isn't about money anymore. I want to experiment, and find solutions. It has become an addiction, as already I can't hear my PC anymore when there is the sl...

I'm now the proud owner of 8 Panaflo fans. :D Through Ebay I found a guy in Canada that sells our beloved Panaflo fans for around $US 10.00 (free shipping) For Canadian and US citizens it is even cheaper. From now on nobody can say anymore: "I can't buy Panaflo :( " You can reach him at: j3fan@yahoo...

Im just curious, if you had only one exhaust would it be better to use an 80mm panafloL1A, or would a 92mm fan possibly undervolted with a fanmate be better? 12v 80L1A panaflo 25cfm @21db zalman quiet 92mm 38cfm@20db w/included resistor 7v 92mm led fan 28cfm@20db Does anyone know if the 92mm zalman...

Here's a picture of a 120x25mm sitting just below the rear exhaust grill, and as you can see on the right side, there is about 3/8" too small a space to fit a 120mm fan. You also can just make out the really quiet fan inside the Fortron/Source PS and how small it's hub is, especially compared to th...