Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!lll-crg!mordor!sri-spam!ames!amdahl!howard 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...) [ A disclaimer for this messages is on file in my elevator and may be viewed Monday thru Friday between the hours of 9-5 and between floors 3 thru 11 ]