Fan Testing Round 4 Complete (Results Summary)

[Church]

I don't like TY-140 having only 120mm mounting holes. So some mount adapter (also for closing open corners to not loose pressure on rads) is a must. Most probably result will look fugly. FDB bearings might help in horizontal mount though.

[Martinm210]

Gotta agree with you here Martin, what the SPL meters are reading seems to have little bearing on how okay the noise is.

Odd that the GT is so good at 25CFM+ and kinda has a weakspot at 18-25CFM. Even at 40CFM though, it's better or as good, to my ear, as any other fan at 25CFM.

In that 18-25CFM range the GT is weak, seems the Yate is the best to my ear. AP121 is pretty bad all over. Rosewills fare well, same with the Noctua, but the Noctua is way expensive and sounds like it's "doing more work" than the Yate to me.

Full-speed GT is really impressive though, the whine is gone and it's moving a ton of air for how little noise there is.

Great stuff, thanks for doing it

Do you have push+pull Yates on the docket?

Yeah, I'm curious if there is some differences between push vs pull too. I didn't notice the GT whine quite as bad in my round 2, but that was all pull conditions where it was pretty tricky trying to prevent air buffeting the mic.

I never was happy with my sound meters and tempted to completely discard them...they are not the highest of quality either which may be part of it. I guess I relate noise annoyance in the same category as music. Give me any instrument and I can play the same volume as Mozart, but I don't think I'll be winning a spot in Wikki any time soon with it.. Volume is definitely not everything and very lacking in defining noise quality.

I think I have several yates, I can try push pull with those as well

[eclypse]

I have turned on my GT 1850s in my case in push pull on my HW Labs 480/360GTX rads and its pretty damn quiet! Gutted case as i'm still building it but i was pretty surprised at how quiet it was since i dont have any gaskets or any noise surpressing crap installed on the fans. Its gona be awesome and i cant wait to get it all together. A whole new gaming experiance for me as i've owned nothing but loud fans since day one 15 years ago! From heatsinks with super loud fans that sounded like you had a vacuume on to screamer fans on rads. Gona be nice and relaxing for once.

[eclypse]

When i was messing around with the fans on the rads, it seemed like pull was quieter then push. Push and pull seems like the way to go if you want it really quiet.

[jalyst]

fascinating, so this essentially builds on the work you've already done here?
http://www.xtremesystems.org/forums/...d.php?t=223391

[Martinm210]

fascinating, so this essentially builds on the work you've already done here?
http://www.xtremesystems.org/forums/...d.php?t=223391

Thanks, yes and no.
It does build upon my previous testing, but no you shouldn't compare across rounds. I keep changing my methods between rounds as it seems I'm still very much in the "methods exploration" mode. So..just make sure you are not comparing differences between a round 4 test to a round 2, etc. I am tweaking things like anemometer calibration, video/audio tools, etc.

Now I'm in the process of build a whole new flow chamber.

I'll figure out what the heck I'm doing sooner or later..

[JasonDTM]

excellent Martin.

Sent from my SCH-I500 using Tapatalk

[jalyst]

Thanks, yes and no.
It does build upon my previous testing, but no you shouldn't compare across rounds. I keep changing my methods between rounds as it seems I'm still very much in the "methods exploration" mode. So..just make sure you are not comparing differences between a round 4 test to a round 2, etc. I am tweaking things like anemometer calibration, video/audio tools, etc.

Now I'm in the process of build a whole new flow chamber.

I'll figure out what the heck I'm doing sooner or later..

OMG flow chamber, you are serious/hard-core!
I see, so we should only use the newest round as the closest approximation towards an authoritative answer?

Thanks again.