And the Lord of Darkness pointed, and his mighty voice rang through the darkness, "THOU SHALT COOL IT", and the peasents trembled.

Upon the Sun's next journey on high, they toiled. One upon each of thy two Central Processors, for they needith most, they cried!
Another twin for the Storage Units, for they are neigh cool enough!
Another voice rang, "We must breath for it!", and so one for input was found.
A mite was found, and it was set unto the task of cooling the Display Unit.
And as the Sun made to sleep, the peasents toiled with haste, for their Lord returns.
"Quickly, a pair to out the evil Heat, one high in the Power Source, one low"
And even as they finished their decreed task, a burst of cool breeze broke over them, and a voice rumbled in the distance "Hmmmm....wonder if I can clock it any higher?"
And the peasents cried out in agony, for their harsh Lord would return, with further demands of sacrifice and punishment

Here's another.....

Three Fans for hard drives under the SCSI,
Seven for expansion cards in their PCI home,
Nine for graphics cards doomed to die,
One for the CPU on its dark throne,
On the motherboard where the shadows lie.
One Fan to cool them all, One Fan to bind them,
One Fan to keep them all and in the darkness fry them,
In the land of motherboards where the shadows lie.

With apologies to J.R.R. Tolkein