Still rumbling? I can handle fans that make a low whooshing (the moving of air, basically) but any mechanical noise just ticks me right off.
I have a 1200 (800rpm) which I mounted as an intake fan inside my old Sonata II case. The thing was effin' useless, I could physically blow harder through a straw. It was very quiet though. However, I will be interested to follow this thread if the poor airflow was down to the low RPM.
Am I reading the figure right? There's a couple of degrees difference in load temperatures when the fans are running at 1000rpm and 1900rpm (assuming the ambients are around the same level for each test). How do the temperatures compare to running the GT1850's?.
The temperature variations at the different speeds are interesting. With the system in my sig at 4.2GHz with 1.31v at an ambient of 20ºC I get 61ºC with the GT's at full speed and 65ºC with them at 7v (approx 900rpm). I think that suggests that the GT's are more efficient at lower speeds. EDIT: After thinking about it I don't think it does suggest that the GT's are more efficient rather that I have more than enough rad(s) to dissipate the heat.
I generally run my fans at 7v so they're pretty quiet at that level. In fact the loudest noise from my system is the mechanical hard drives. I only turn the fans up to full if I'm stress testing. The hottest ambient we've had in Southend so far is 30ºC and video editing with the fans at slow speed only knocked the temps up to 72ºC. I've not used Coolink fans but I can say that the GT1450s at full speed are the quietest, effective fans I've used (and I've used a lot including Noctua's), they also have a pleasing tone that you don't get with some fans. I can get an extra degree drop in temps by using Kaze Jyuni 1900RPM Slip Streams but when I redesigned my system I went for quietness and used a Quad rad rather than a triple and added the GT240 because I had it spare and there was space in the case to fit it. If you check out the Overclockers and Xtremesystems forums many watercoolers are using GT1450s or 1850s because they've proved to be the best compromise between noise and performance. If the Coolinks were a fiver then I suspect they'd be popular but as they're close in price to the GT's many will continue to use GT's. Don't get me wrong but some people have different perceptions and tolerance to noise levels and some have said for example that fans like the Noctua NF-P12 are silent when to me they're quite loud at full speed.
I use the Swiftech MCP655 with EK X-Top Rev.2 mainly for the quietness and lack of vibration. I have used a Phobya 400 which worked just as well but was too noisy for me. Even running it at 5v I could hear it above the hard drives. When I said I run my fans at 7v above, I actually meant 5v (600rpm).