Re: GS ram problems. Help!

[valthoff@magnus.acs.ohio-state.edu (Victoria M Althoff)]

In article <kooter.757289381@vincent1.iastate.edu> kooter@iastate.edu () writes
:
>
>AFter much **ck*** around I've finally found my GS problem.
>
>Problem summary:  Prodos would not load from the 3.5 drive but
>    would with the 5.25 drives.  It would die at different places during
>    the laod process.  Disks are OK.  RAM was 2.25 meg.
>
>I went to pick my sister up for break and played with the computer and
>the thing smelled like SMOKE really bad.  I opened it up and the
>chips on the memory board were just hotter than heck and smelled like it
>was on fire.
>
>So.....it'got to be the memory board.
>
>Question:  Is it the board or the chips?
>    Only 3 chips look bad in the top bank.
>
>I haven't pulled the bad looking chips (the writing on the chips
>looks to be darkend from the heat) and tried running with 1.25 yet.
>
>Any ideas?
>
>--
>kooter
>kooter@iastate.edu
Are there other components in that vicinity?  At the radio station, I worked on
a console mixer module, and accidentally burned up a resistor.  This scorched a
chip, but the chip turned out to be okay.  If the problem is in the board, you 
don't want to plug in new memory only to fry the new chips as well!

It is likely, however, that your problem is with the chips.  I would look 
around, though , and watch for any other burned-up components.  Chips do 
occasionally burn themselves out.  But more often, another component fails and 
causes them to go.

Sorry I don't have any more GS-specific advice for you.  I do know, however, 
that if you jumper the solder test pads at the front-right corner of the ][e 
motherboard, you will fry several RAM chips... 8-}

--Dave Althoff, Jr.
(Happy New Year!)