Re: Restoring IIGS with Transwarp IIGS --> identification if loose IC

[Rubywand <rubywand@my-deja.com>]

Dave Althoff Jr writes ...

 ....

>
> Which reminds me...anybody got any ideas
> where I should look for trouble
> on my TWGS?  Factory configuration, but once
> the machine heats up a little, it starts crashing.
>  Perhaps I need a new 65C816 for the TWGS?
> Or is there another likely culprit?
>
 ....


     A good test is running without a lid and with a fan blowing air on
the TranswarpGS. If you still have system crashes, 'normal' overheating
is not a likely cause.

     Touching IC's on the board is one way to detect a chip which is
running hot. While fairly hot IC's are not all that rare on accelerator
boards, very hot IC's are. A very hot IC may be a defective part which
draws too much current and should be replaced.

     If the culprit is overheating, you could add a SystemSaverGS or
stick a fan on the lid to suck in cool air. The latter might be a fan
mounted on a sheet of plastic with side supports to allow setting the
monitor on top.


     Overheating may not be the real problem. It is not unusual for a
IIgs with a few Slot cards already installed to begin experiencing
system crashes after an accelerator is added. The culprit generally
turns out to be noise generated across skimpy power supply leads and/or
skimpy Slot bus power traces. For more about this and possible fixes,
see http://home.swbell.net/rubywand/Csa2POWER.html .



Rubywand


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