Well that fan doesn't look like it can be altered and minimum looks to be 36% (doesn't show RPM). System shows as no fan in speedfan Also, the connector is non-standard so not a straight fan swap (was going to try an Apache Silent fan). Good news is it easily transcodes plex using only about 30% for a transcode from 1080p 10mbps to 720p 3mbs to my Android S4 phone. The QNAP TS-469Pro (Dual core 2.2GHz Atom) can't do a 1080p stream transcode. Some comparison shots to the QNAP which is still much smaller, plus some of the fan connector.