![]() ![]() Taken outside, the original RPC-4220 fan partition and two 120mm fan partitions The Installationįirst, here is a shot of three partitions, the stock RPC-4220 partition with the 90mm Delta fans, the 120mm Norco bracket with three fans, and the 120mm bracket with no fans. Let me say this, for home users, you WANT 120mm fans in the center partition! The noise difference is amazing. This is pretty much a simple, install fans on the new, unscrew and remove the old, screw in the new, and hook up fans to a power source job so I have some illustrations to show users what this is like. With the introduction of the RPC-4224, Norco started using the 120mm fan center partition design, and made the bracket available to end users for a relatively nominal amount (something like $11 not including shipping). 120mm fans can spin slower while moving a similar amount of air due to their larger fin areas. Cavediver (who can be found on the forums and ardforums fabricated a fan bracket for the popular Norco cases that incorporated 120mm fans. While the typical quality Delta units moved a lot of air, the fan speed required with the smaller fans also yielded a lot of noise, which is not desirable for a lot of users. Traditional 90mm fans were found in the center partitions of those models. Being server cases, popular models like the RPC-4220 and RPC-4020 are built to be installed in server rooms where airflow takes precedence over noise. Norco has a reputation for providing inexpensive server rackmount cases that are oftentimes good enough for many home and small business applications. ![]()
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