Re: Can anyone help me with TranswarpGS problems?

[Dean Shutt <junk@punaka.com>]

www.mouser.com is a good source.  A 48 Mhz crystal is $1.70 and Mouser
has no minimum order.  I ordered a number of different frequency
crystals to test in my Transwarp GS from this source.  The 48 MHz part
number is 520-TCH4800.

Check the web site for the other speeds available.  They range from 1
MHz to 66.666 MHz all at the same price.





On Sun, 4 Jul 2004 16:17:36 -0400, "Tim Haynes"
<timhaynes@no.spam.please.alumni.uwaterloo.ca> wrote:

>Thanks to Mark, Glenn, and Wayne for their suggestions regarding replacing
>the CPU on my TWGS.  I did the swap today, and have posted some pictures of
>the work to my website again (www.csclub.uwaterloo.ca/~tshaynes/TWGS).  The
>new pictures are dated today (July 4).
>
>I had to remove a plastic collar from around the CPU, and I did that with
>tiny screwdrivers.  after that, replacing the chip was easy.  I considered
>drilling a small hole through the bottom and pushing it out, but you can see
>that that would be inadvisable as there seem to be some metal contacts on
>the top of the PCB beneath the socket that are not visible from beneath the
>PCB.
>
>Anyway, I swapped in the faster CPU and got a clean bootup right away (even
>without putting the plastic collar back on the socket!).  The very last
>picture I posted shows the TWGS booting up minus the collar on the socket.
>Heh.
>
>So I have it running a continual self-test.  After about 20 minutes, have
>been getting one freeze-up or another (last time it was socket slowdown
>test)... before that, it was a lockup on a RAM test).
>
>Does anybody know a good source for 50MHz half can crystal?
>George from Michigan mentioned in email that someone at one point was
>selling (for $10) gold plated chip/ribbon connectors.  Does the person who
>used to make them still come around?  Does anybody remember who that was?
>Was it Joachim?
>
>Thanks again
>Tim
>