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Old 02-20-2014, 10:44 AM   Topic Starter
htismaqe htismaqe is offline
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PC overclockers/tinkerers...I have a question...

Last year I bought a Sabrent external HDD enclosure that includes a cooling fan. I thought it might help extend the life of the drive in the enclosure.

Today, I noticed that the fan was not spinning. After taking it apart, I noticed that the mounting bracket was poorly installed (and cheap plastic) so the fan was rubbing on the drive, stopping the fan.

Normally, a case fan of this sort (when installed in a PC or other similar device) would be mounted with the closed side (the housing with the label that doesn't spin) facing the computer case. The open (spinning) side would be facing in and normally would either have free space behind it or be covered with a screen to prevent something from interfering with the fan. Air is pulled into the open side and sent out of the case.

The problem with this thing is that there's precious little space between the open side of the fan and the HDD. On top of that, the mounting bracket actually has a built-in screen. After taking it completely apart, the fan actually fits better in the mounting bracket if I reverse it so the housing side of the fan is facing the HDD. Then the open side is protected by the built-in screen in the mounting bracket. It almost looks like that is the CORRECT orientation based on how everything fits together.

The issue is this:

With the closed side of the fan facing the HDD, I've reversed the airflow. I would now be pulling air IN to the enclosure rather than blowing it out. It does appear that the design of the enclosure would allow air pulled in to flow 2 or 3 inches and out the grill in the front of the enclosure.

So for those of you that have done a lot of work with PC cooling, should I reverse the fan?
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