> I found the heat sink securely attached to the chip > but with no fan on the heat sink.
It's called up-front engineering. Apple does the heat balance calculations and subsequently makes sure there is proper air flow in the computer case design. Other manufacturers may take a computer case and toss in the components. "Hey, Fred. The processor is runnin' too hot." "Put another one of those noise-generating fans in there." ;-) > There is a wopping big fan on the power supply > that appears to be facing the motherboard.... That fan pulls air out of the computer case, over the power supply components, and out of the computer causing room air to enter the computer case, flow over the hard drives, DIMMs, CPU, etc. You wouldn't want the heat from the power supply blown over your motherboard. Even peecees don't make that mistake. ;-) -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | PowerON Computer Services <http://www.poweron.com> REPLACEMENT PARTS in STOCK Drives, CD-ROMs, RAM, Mac OS SW, Power Supply <mailto:[EMAIL PROTECTED]> Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.shtml> Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/pci-powermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
