Xref: utzoo unix-pc.general:3118 comp.sys.att:6739 sci.electronics:6644 Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!amdahl!rtech!ralph From: ralph@rtech.rtech.com (Ralph Harnden: I don't wanna badger you (ext3430)) Newsgroups: unix-pc.general,comp.sys.att,sci.electronics Subject: Re: Conductive Dust Bunnies Message-ID: <2996@rtech.rtech.com> Date: 18 Jun 89 00:22:54 GMT References: <1989Jun14.042949.597@ivucsb.sba.ca.us> <19512@cup.portal.com> <19559@cup.portal.com> Reply-To: ralph@rtech.UUCP (Ralph Harnden: I don't wanna badger you (ext3430)) Organization: Relational Technology Inc, Alameda CA Lines: 29 In article <19559@cup.portal.com> mmm@cup.portal.com (Mark Robert Thorson) writes: ... >When I first heard this, it gave me a great idea for "nuking" a computer >center. Get a bunch of graphite fiber, chop it up, and dump it into the >air conditioner intake for the building housing the computer center. > >Of course, I never did it. And you shouldn't either. ;-) In a past life, I worked for a large mainframe vendor. One of their customers destroyed a multimilliondollar machine by drilling holes in a metal door frame close to the power distribution unit for the dinosaur. The power supply fans sucked the metal filings (dust...) up into the unit; the result was a virtual meltdown. The vendor had to mechanically replace the entire machine. The moral of this fable is: dust is not dust is not dust! I'm not suggesting that the original poster send his dust bunnies to the lab for testing before he removes them. I would caution, however, that unless you suspect there is conductive material in the dust, or unless you observe the dust blocking the vents, removing it can cause more damage than just leaving it alone. Especially if you are not aware of static dischange, or the magnetic fields generated by vacuum cleaner motors. -- "People will do anything for a potato" {amdahl, mtxinu, pacbell, sun}!rtech!gusano!ralph ralph%gusano@rtech.com