Acer Altos R920 Series User Manual page 165

• Is the fan's power connector properly connected to the
mainboard?
• Is the front panel board cable connected to both the mainboard's
front panel board connector?
• Are the power supply cables properly connected to the
mainboard?
• Are there any shorted wires caused by pinched cables or have
power connector plugs been forced into power connector sockets
the wrong way?
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