Path: utzoo!utgpu!watmath!uunet!cos!hqda-ai!icus!limbic!gil From: gil@limbic.UUCP (Gil Kloepfer Jr.) Newsgroups: unix-pc.general Subject: Re: Intermittant Bootup Failure: AT&T too much! Summary: change the 68010 processor Keywords: unixpc 3B1 boot Message-ID: <407@limbic.UUCP> Date: 30 Nov 88 04:08:31 GMT References: <1056@ncar.ucar.edu> Reply-To: gil@limbic.UUCP (Gil Kloepfer Jr.) Distribution: na Organization: ICUS Software Systems, Islip, NY Lines: 29 In article <1056@ncar.ucar.edu> sitongia@hao.ucar.edu (Leonard Sitongia) writes: |>With increasing frequency, my unixpc shows an intermittant problem in which |>it wont boot. The screen goes solid green (or bright green with a fine |>black grid that makes it look like an array of small boxes, but not like |>the line of small boxes at bootup). Usually this is upon powering up the |>box, but once it crashed with no messages and showed this symptom. |>-Leonard E. Sitongia System Programmer (303) 497-1509 |>SPAN: NSFGW::"hao.ucar.edu!sitongia" [NSFGW=9580] This sounds an awful lot like something Lenny (you all know, lenny@icus) told me about a long time ago (he's at the SysV.4 developer's conference, so I'll answer for him) -- Seems that this is SOMETIMES a bad 68010 processor. If you have access to a spare, or feel like going out and buying one, it's cheaper than what AT&T wants for a new motherboard (might as well just buy another 3B1 and use it for parts ;-). A suggestion I can give is to make sure all the chips on the motherboard are seated properly in their sockets, and carefully vacuum the dust off. If it's anything like the inside of Lenny's 3B1, you'll need to replace the vacuum cleaner bag when you're done (sorry Lenny :-)!! In any event, intermittents are generally caused by this, a chip going bad, or a broken trace on the motherboard (forget it!). Also check the solder connections to the power supply connector. --------- Gil Kloepfer, Jr. U-Net: {decuac,boulder,talcott,sbcs}!icus!limbic!gil ICUS Software Systems Voice: (516) 968-6860 [H] (516) 746-2350 x219 [W] P.O. Box 1 Internet: gil@icus.islp.ny.us Islip Terrace, NY 11752 "Life's a ... well, you know..."