eli@cvl.UUCP (03/08/86)
I just picked up the new ROMs for the 520 and installed them in my upgraded
ST. I upgraded to 1 megabyte back in November '85 and didn't put any
resistors in (at the time, they weren't mentioned in the upgrade instruc-
tions). A while ago, someone posted a message saying that when they did
this, they fried their ST. From looking at the schematics, I saw no reason
for this unless the upgrade was not properly wired. So, I said what the
heck and turned the thing on. It has been running for a few days now with
no problems.
I question the necessity of cutting traces in ones ST and installing the
resistors. Admittedly, my knowledge of digital electronics is not that
extensive, but I can't see how any harm could result from not using the
resistors. I would suggest upgrading ones ST without installing the
resistors. Only after doing this and finding that the upgrade doesn't work
should you need to install the resistors. In any event, I don't see how
any harm could result to your machine by not installing the resistors (but
I don't guarantee it won't). Maybe Atari will comment on this?
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Eli Liang ---
University of Maryland Computer Vision Lab, (301) 454-4526
ARPA: eli@cvl, eli@lemuria, eli@asgard, eli@mit-mc, eli@mit-prep
CSNET: eli@cvl UUCP: {seismo,allegra,brl-bmd}!umcp-cs!cvl!eli