Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!agate!ucbvax!hplabs!hpl-opus!hpnmdla!donrm From: donrm@hpnmdla.sr.hp.com (Don Montgomery) Newsgroups: comp.sys.ibm.pc.hardware Subject: Re: Noisy Fan - Looking for a good trick Message-ID: <11300006@hpnmdla.sr.hp.com> Date: 17 May 91 21:44:01 GMT References: <1991May16.185539.10519@m.cs.uiuc.edu> Organization: HP Network Measurements Div, Santa Rosa, CA Lines: 16 Hi- Are you sure it's your fan causing the problem and not your hard disk? A quick check is to stall the fan with something insulated (stick of wood, etc.) shoved in the fan blades when the computer is first powered up. Stalling the fan won't harm anything for the short amount of time to check where the noise source is located. If you still hear the noise, check the rub contact at the shaft end of the hard disk. It's usually a spring made of beryllium copper and they sometimes make a whining noise. You can usually fix it by either re- placing the spring or giving it a slight "tweak" to change its tension. Don Montgomery donrm@hpnmdla.HP.COM