AlxUnderBase
Enlightened
yeah ... but mine have the label on both sidesEasy way to get it right, make sure the label of the fan is facing outwards.
That's what the vents are for at the front of the top case. Air is pulled in through those vents and exhausted out the rear. This creates a flow of air over the components and prevents heat from building up within the case. Cool air sucked in, passed over hot components, hot air sucked out.
