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Conference hydra::amiga_v1

Title:AMIGA NOTES
Notice:Join us in the *NEW* conference - HYDRA::AMIGA_V2
Moderator:HYDRA::MOORE
Created:Sat Apr 26 1986
Last Modified:Wed Feb 05 1992
Last Successful Update:Fri Jun 06 1997
Number of topics:5378
Total number of notes:38326

3171.0. "System hangs, what's happening?" by LEDS::BUSCH (Dave Busch at NKS1-2) Thu Nov 30 1989 16:35

Last night I happened to bump my desk with a chair, whereupon my monitor screen 
went blank. I noticed that, although the monitor still had power, the red LED on
the A500 had gone out. After a couple of minutes, during which I didn't touch 
anything, the system came on and rebooted. However, after that, I had problems 
with DigiView. First I tried to load in hi-res B&W mode but got an "ongoing 
task" guru. That problem, whatever it was has gone away but I have noticed the 
following, repeatable problem. 

1. Boot WB 1.3 (with the analog clock displayed)
2. Select (double click) the DigiView disk icon
3. Load DV
4. Quit DV...notice that the analog clock is frozen
5. Reload DV...the disk starts turning but no seeking and no loading. The system
   is hung. 

If, after 4 above, I pop out either the WB or the DV disk, the clock starts
running again and I am able to reload and run. Also, if the clock is removed
before trying to load DV, everything works out OK. 

			W H A T'S    H A P P E N I N G ?

Dave.

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3171.1power problems?WELMTS::EDWARDSFri Dec 01 1989 09:2820
    
    Dave,
    
    	Your problem sounds very similar to a one that I am currently
    investigating. The problem started with random crashes, hangs etc.
    finally complete failure to boot with the power led flashing rapidly.
    
    	Initial impressions were that there was a power problem associated
    with the plug on the back of the A500. Monitoring the +5v inside
    the A500 showed a fluctuating voltage (sometimes zero) although the power
    supply itself remains stable. Movement of the cable/plug affected
    the varied the voltage. I have tried tightening the power sockets
    on the computer and I think I have fixed it but if not I'll have
    to look at the socket again (see note 2994).
    
    	Hope this is of some help to you.
    
    
                            Paul.
    
3171.2A whoopsieWELMTS::EDWARDSFri Dec 01 1989 09:406
    Dave,
    
    	Whoops, sorry, last bit should have read note 2944.
    (dyslexic fingers)
    
                Paul
3171.3PSU Plug problemsBRILLO::FENTON_RTheres no hair on a seagulls faceThu Dec 07 1989 15:495
    Yes I agree (belatedly, I've been in bed with 'flu for two weeks),
    the PSU plug is CRAP, you can get no end of trouble from it.
    
    -Roger
     
3171.4A bug in WB 1.3?LEDS::BUSCHDave Busch at NKS1-2Thu Dec 07 1989 16:016
I talked to Don at The Memory Location and described the problem. He told me 
that this was almost certainly the result of a bug in my (early) version of 
WB 1.3 and said that it should vanish if I upgrade to a later 1.3.  I have a
new copy but haven't had the chance to check it out yet. Maybe this weekend.

Dave