AOpen SV520, Руководство пользователя

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The chassis can house five cooling fans, however, it only needs a minimum of three cooling fans to
operate properly. These fans are distributed inside the chassis to cool down the system (two in
front and one at the back). The rear cooling fan is fixed and not hot-swappable. You have to
shutdown the system before changing the rear cooling fan. However, the cooling fans in front are
hot-swappable. When the front cooling fans becomes defective, you can simple take it out and put
a new one in even when the system is operating.
Make sure that there are three cooling fans (two in front and
one at rear) distributed in the chassis to ensure proper
system operation. Also, remember to shutdown the system
when changing a defective rear cooling fan.
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