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From: howard@amdahl.UUCP (Howard C. Simonson)
Newsgroups: comp.sys.mac
Subject: Re: Mac Hardware Crashes
Message-ID: <4599@amdahl.UUCP>
Date: Sat, 13-Dec-86 05:39:05 EST
Article-I.D.: amdahl.4599
Posted: Sat Dec 13 05:39:05 1986
Date-Received: Mon, 15-Dec-86 21:47:09 EST
References: <1454@trwrb.UUCP> <1266@im4u.UUCP> <4412@ut-ngp.UUCP>
Reply-To: howard@amdahl.UUCP (Howard C. Simonson)
Organization: Amdahl Corp, UTS Products Group
Lines: 36

On the subject of "kinetic bombs"; I used to drag the Mac back and forth
between home and work a lot.  I think all the travelling started to take
its toll on the machine because one day I banged on the desk (in frustration
that had nothing to do with the mac :-) and managed an "02" bomb.  I found
tapping the case had a similiar effect.  Being somewhat hardware oriented,
I took it home, opened it up, and did the first line of defense: I reseated
all the chips in sockets between the motherboard and the Monstermac board.
Of course this meant reseating the Monstermac board as well (its a pre-clipon
upgrade).  Problem solved.  I haven't bombed for this reason since.

P.S. When I had the Levco SCSI port added on, the guy put a new set of
     socketing pins in that are supposed to be better; at no request of
     mine.  They may be adding to the stability of the machine since it
     still has occasion to travel and problems have not arisen.

P.P.S. I too have been running the Mac 24x7 for sometime to avoid wear-n-tear
       via power cycling and for availability reasons.  I am pleased to
       say that the Mac has been running this way for nearly a month.
       I have never yet come home to a bomb on the screen.  I use the
       Blackout FKEY to save the screen (can't waste those valuable DA slots).
       The only strange thing that has happened was some sort of static type
       buildup once that seemed to ocurr on the screen.  It was a sort of
       flash/snap/bomb, but it only happened once so I attribute it to
       balled lightning :-).

P.P.P.S. I only recommend running 24x7 if you have a Dataframe or similiarly
         quiet disk, or a soundproof room in your house.

P.P.P.P.S.  I absolutely abhore people who extend Post Scripts (except Abobe:-)
-- 
"What  it boils  down to is that  when                       Howard C. Simonson
you have a problem you want a solution."    ...{hplabs,ihnp4,nsc}!amdahl!howard
 (very profound guys, now mug for the camera...)

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