Don't really know what are "special fans" but I will do my best to answer what I think you question is. The key to keeping a CPU cool and below maximum operating temperature is to get a fan~and~heatsink combination that will dissipate more watts than the CPU will use. Most high quality heatsink and fans specify their rating or at least what type and speed CPU they can handle. If they did not, I would not use them since without testing a unit, one will not know if it has sufficient capability to keep the CPU cool enough. (other factors being equal). Daniel Wysocki Twin*.*Star Computers 770-498-2582 / 800-816-0663 Fast, Reliable, Wallet-Friendly [log in to unmask] ---------- From: Roberto Safora[SMTP:[log in to unmask]] Sent: Tuesday, June 01, 1999 1:25 PM To: PCBUILD - Personal Computer Hardware discussion List Subject: RE: Re: [PCBUILD] 2 questions on fans Sorry. I meant the cheap fans people used for pentiums 54c, 55c or so. The right question is: Do celeron pga370 some kind of special fan? Do you want to signoff PCBUILD or just change to Digest mode - visit our web site: http://nospin.com/pc/pcbuild.html