I finally got around to reading this article... great build! Very nice and clean.
Just a couple questions...
Why use the Arctic Cooler when there are passive cards e.g. Gigabyte 6800 card
, or Zalman HP-80, that could perform better? With a 80 help-fan or even better with a duct from front fans it would be both cooler and quieter.
The card I chose is faster. The AC cooler exhausts the heat, this is a very positive thing. Also, with the fan voltage set where it is (6~7V), the noise from the AC cooler is at residual level.
I suppose that's the same reason why you chose the AC over something like the Zalman VF700 (link
I had re-read the article to see how you got your AC to be SPCR-quality quiet:
A Zalman Fanmate1 is used to control the speed of the AC NV Silencer's fan. At full speed, this fan is too loud for a quiet computer. The fan speed setting was chosen on the basis of noise (quiet enough not to be identifiable as a discrete noise source) and cooling (which you'll see later). It turned out to be a very slow speed; I would guess the fan is not getting more than 7V. Still it is plenty cool enough, even at very high, extended loads.
And your temperatures still look good! Nice.
I was just thinking, I tried the AC NV silencer for my geforce ti4200 a while back, and wasn't impressed with its sound level, although, after reading this article, looks like I could get away with Fanmate'ing the fan down to lower levels.
Just some other random musings: have you instructed Frank that he may have to use compressed air to clean out dust every year or so? Hopefully the P150 does a decent job on its own of keeping dust out, but that PC will probably still collect dust over time. I've found noticeable
temperature drops when I clean out ultra-dusty heat sinks. I think that's the downside to running a computer that is silenced primarily by slow fans: the dust will accumulate, and you're at greater risk for increased temperatures when the cooling becomes less effective due to dust. (Although I'm in the computer so much, I have plenty of opportunities to clean, but when you give a silent pc as a "set it and forget it" gift...)
One final comment: any worry of flammability for the foamboard PSU duct? (Obviously not or you wouldn't have done it
). I don't have the link handy, but I remember someone on here building a really nice duct using Plexiglass. <shrug>
Anyway, great build! Most impressive. Keep the great articles and reviews coming!