Originally Posted by game
If the large fan to the left of the CPUs is the main source of the noise, perhaps you could mod it to run off of the +5V line on a Molex connector and undervolt it. Try the mod and monitor the temps, if they're within reasonable levels this would be a very easy and cost-effective solution to the noise problem.
I thought of that too.....the bios recognizes the fan isn't spinning fast enough thus ramping up the other system fans to compensate and I'm back in the same boat of an obnoxiously loud system.
To counter act that I decided to split the yellow cable from one of the 120mm fans and connect that to the mobo connection for the 150 and it ran quietly for a bit but once temps climbed it still spun the rest of the fans up to hurricane proportions.
What it comes down to is an un-adjustable bios that tries to keep temps low utilizing loud fans and inadequate passive heatsinks.
I just ordered some Dynatron H6EG's to upgrade this system to active heatsinks and keep the air flow from left to right. Hopefully they'll keep temps low enough to stop the bios from spinning up the fans.
Ouch Manyak....I'm not a wc'n n00b, and understand that I would also be putting together a preventative maintenance schedule for the systems if it came to water.