Re: TWGS Hanging for No reason

[rubywand@aol.com (RUBYWAND)]

In article <31A5661A.41C6@vbo.mts.dec.com>, Erik GACHOT
<erik.gachot@vbo.mts.dec.com> writes:

>
>	I have a TWGS which was working very well until now.
>	
>	Now my system is hanging with no reason,
>	or crashing. Sometimes when I try to reboot the machine
>	I get a strange screen, and I have to move a little bit the
>	Cristal and then it boot again, But crashes after under the
>	Finder or applications.
>
>	I removed the TWGS and put back the initial CPU and all is 
>	working fine, so it's my TWGS (~10 years Old).
>
>	Could it be possible that my Cristal is no more good ?


     Probably, you are talking about the Oscillator module. This is a
square plug-in circuit with four feet that plugs into a socket near a
corner of the card. It includes a crystal and circuit in a single package.

     It does sound like the Oscillator output may be turning OFF. The
Oscillator module could be bad; OR, a circuit connected to the Oscillator
could be bad; OR, maybe, the Oscillator module socket is making poor
contact.

     If the problem is a bad socket contact you can do a fix. Mark the
Oscillator module and board to show how it is supposed to be plugged in.
Remove the Oscillator module. If your socket has leaf type contacts, use a
needle or hatpin to bend contact leafs in each module contact point back
towards the center to make a tighter fit. Replace the module.

     If the socket can not be fixed and the contact for all four
Oscillator module feet is not firm, then you may want to replace the
socket. A good replacement socket is the kind which has solid round holes
(instead of sprongers) and is gold-plated.


Rubywand