Hi all, I have a really noisy fan on my computer - if i play any games it starts to rev up like a jet engine and blow a loud noise consistently from the computer. I looked inside my computer and realized it was coming from the "intel branded" fan screwed into my motherboard / processor. I had second thoughts about trying to replace it after I saw that it was close to a lot of expensive areas, so I was hoping someone here could help me find the correct fan to purchase. The marking on the fan read : c91334-001 N6580 R1 F06A-1283S1 02AC1H1 DC 12V 0. 55A NIDEC CORP There are also some wires coming from the fan, its power connection i assume. It's actually fairly quite, until it revs up. Im just worried that its specific to my processor, so I wanted to get some help first. Computer spec : OS Name Microsoft Windows XP Home Edition Version 5.1.2600 Service Pack 2 Build 2600 OS Manufacturer Microsoft Corporation System Name USER-08F090A560 System Manufacturer TYAN COMPUTER System Model S2676 System Type X86-based PC Processor x86 Family 15 Model 4 Stepping 1 GenuineIntel ~3192 Mhz Processor x86 Family 15 Model 4 Stepping 1 GenuineIntel ~3192 Mhz BIOS Version/Date Phoenix Technologies Ltd. S2676 REV 2.02, 5/18/2005 I guess my main question is, how do I tell what MM size my fan is, and what other factors do I need to to know in order to purchase a leet quiet fan, from someone like SilenX. Money isnt really a problem, but this also isn't a suped up, overl****ed computer, so the fan needs to be non-custom....if that matters at all.