Xref: utzoo comp.sys.att:9813 unix-pc.general:5638 Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!yale!quasi-eli!cs.yale.edu!yarvin-norman From: yarvin-norman@CS.YALE.EDU (Norman Yarvin) Newsgroups: comp.sys.att,unix-pc.general Subject: Re: 3b1, antistatic tab removal Message-ID: Date: 16 Jun 90 08:35:29 GMT References: <303@sphere.UUCP> Reply-To: yarvin-norman@CS.YALE.EDU (Norman Yarvin) Lines: 24 Distribution: In article <303@sphere.UUCP> ruck@sphere.UUCP (John R Ruckstuhl Jr) writes: >My 3b1 ingests much dust. How do you/I remove the accumulated dust from >the opened 3b1? (I considered wiping the motherboard with an old >paintbrush, but worried about static (dis)charge.) I have used compressed gas. Traditional products use CFCs, and I have also seen plain compressed air for this purpose. The last time, I just used lung power. Has anybody tried a fire extinguisher? (the CO2 kind, not the water kind :-)) Presumably an air compressor would also work? Bottled gas for cleaning my computer is not the kind of thing I like spending money on. >Does anyone checksum backups? Or is checksum inherent in cpio, so if >one can cpio -iBct (or cpio -iBc ?), then the backup is clean? I think either the kernel or the hardware writes CRCs for each disk block. I know the standard backup routine just does a cpio -iBct (or whatever) if you ask it to "verify the backup". (You want the 't' option, or else you'll be restoring.) -- Norman Yarvin yarvin-norman@cs.yale.edu "Obviously crime pays, or there'd be no crime." -- G. Gordon Liddy