pccasegear are in .au and have a wide range of PSUs with some pretty decent quieter ones in there. Check their range and compare with the SPCR recommended PSUs page. http://pccasegear.com/category15_1.htm http://www.silentpcreview.com/article28-page1.html I know that few of the actual PSUs on the re...

I've only modded the Cu7000 and it rocks. The frequent reports of curved XP90s needing lapping put me off it.

Not much quiet at 60mm, but this site is fairly reliable and recommends the SPIRE FD06015S1M.
http://home.iprimus.com.au/maslovsky/60mm.htm

I believe the medium speed Yate Loons probably also qualify (with a separate thermistor) but I have no experience or knowledge with them. It may be worth getting your thermistor for the appopriate temperature range and just applying it to your current fans before trying any other fans. They might su...

As I said before, the combination of having high CFMs and thermal control is extremely unlikely. Your best bet is to put your own thermistor on a PAPST 8412NG which does 40CFM. They undervolt reasonably well. Are you sure you need 40 CFM?

There are very few quiet fans that also have thermal control and get high maximum flows. Probably the one closest to your requirements would be the arctic cooling range of fans which are surprisingly quiet, affordable, thermally controlled and have a reasonable maximum flow (about 31cfm). The newer ...

When you say variable RPM do you mean thermally controlled or something you could control yourself? Chances are your current fan with a Zalman fanmate2 would fulfil the second criterion since the flow is (apparently) what you seek for maximum.

Welcome to SPCR!
Have you read the recommended page?
http://www.silentpcreview.com/article63-page1.html

I'm happy with my silenx 120mm but I undervolt the crap out of it. The claimed figures clearly aren't real but they are quiet fans.

Yeah well I could never afford a hard drive even for my amiga so they were silent except while using the floppies.

I distinctly remember the transition from silent computers to noisy crap when moving from amiga to pc based hardware after using silent pcs for 14 years .

It's not at all unusual; a fine layer of insulation does a lot of harm.. My in-laws' computer was on 24/7 and I recently checked it's temperatures to discover the amd xp 1700+ in it was running at 78 degrees C. I thought.. umm... that's not good but it is impressive... Blowing out the heatsink fins ...

I have a few. They fail to mention it's 14dB or 58CFM
Seriously when undervolted they are extremely quiet but by default they are only relatively quiet and not remotely 14dB. It's still a good fan but their claims are absurd.

According to MikeC the case flow in this is terrible so it's a real let down.

Nexus is the quietest, and to purchase them for .au you have to buy them from .nz from krone techologies http://www.krome.co.nz/ apparently (at some exorbitant cost). What I do (also being in .au) is buy the silenx fans and undervolt them which works extremely well. pccasegear have them http://pccas...

the question is: Would 3.7 Ghz system w/hyper-threading enabled performed as well as my current setup in CAD & 3d Max? I don't know your software, but basically if your applications are single threaded they derive no advantage from the dual Xeons or the hyperthreading, but would be much faster with...

Well yeah that's the most likely explanation
Assuming ambient temperatures are static, my explanation is next most likely...

Dust

I always ran my 7000 at low speed and dust became a problem very quickly making me redesign my layout with dust in mind. Grab a hairdryer and on cold blow out the fins.

Newcastle 3500+ with 7700AlCu (with an x850xtpe with v700 AlCu) Before -------- Idle: 50C Load: 68C That's really scary. My P4 3.06 Northwood running at 3.2 Ghz runs at 50 degrees C passive with a 7000Cu. The pwm fan control I set up turns the fan off at 50 degrees and it sits at 50 degrees most of...

Right, now, notice that I didn't ask "My CPU runs at 45C, is this safe?" I asked if negative pressure was making my temps worse, and how I could fix it if it is. A better question might have been a more general one, such as, "What are the pros and cons of positive and negative pressure?" Because th...

That'll happen regardless. Negative pressure is not giving you a problem.

Mar. wrote:So I'm wondering, that negative pressure, could that be hurting my CPU temps?

No.

Temps under 60 are fine. Why worry about 45?

Heh all the more reason I posted the link so you could make a critical assessment yourselves.

http://systemcooling.com/thermalright_xp-90c-01.html


Admin Edit for hotlinked image.

Hair dryer on cold. Positive pressue is only useful if you use a filter with the incoming air. Otherwise unfiltered blown air is no better than unfiltered sucked air. Yeah you can argue about where the air gets sucked from and through cdroms etc... overall I don't think they're important in the equa...

We are seeking input from hardcore silent PC fanatics about the ideal silent fan. Once we can reach some sort of consensus we will prototype the top selections, measure noise, choose packaging/labels, and submit for official review. More than happy to provide! *Most important: specify ideal RPM for...

Rusty075 wrote:Actually Ckolivas, everything they sell is rebadged. The fans are Adda's, the heatsinks are Swiftechs or Zalmans, the PSU's are fortons.

True, but then Nexus fans are rebadged Yate Loons etc... so that's not really a bad thing all the time...

In Australia where our choice of quiet fans is severely limited, silenx are one of the few we can purchase. Despite the bad feel on these forums I have been quite happy with the silenx fans I have purchased. There are a few things to note - the quoted sound figures are quite simply bullshit. They ar...

Ok now this version should do what you want without extra parameters. It watches the rate of rise of cpu load and determines what the dynamic cpu load is. It will therefore stop it faster under heavy load and restart it faster under light load than previously. The default load check interval is 10 s...

What the heck I may as well do it properly.

Hang in there and I'll make one that watches the rate of rise or fall and decides what the load will plateau at.