I ended up going the OSH Park route. I was pleasantly surprised to find out
that it costs the same $6.30 if you order 1 board or 3 boards. Plus I chose
the free shipping.
Also ordered the other parts from Digi Key. So... total cost to me was under
$25 for everything shipped. This is enough parts to build 3 of them. Not too
bad.
Thanks for the tip!
Chad
On Wednesday, August 21, 2019, 07:18:31 PM CDT, Fugu ME100
<[email protected]> wrote:
From A000H to BFFFH is Option RAM #2 based on figure 3-5 in the 100 Reference
Manual. This would cover the bad RAM. So this looks correct.
If it is a Model 100 the modules were available form Arcade Shopper
https://www.arcadeshopper.com/wp/?page_id=11#!/8k-RAM-module-for-Model-100/p/104430801/category=28313042
but they appear to be out of stock.
There are a few list contributors who also build 100 modules they might have
some built and OSH Park has the PCBs to build your own modules if you want to
go down that route for example: https://oshpark.com/shared_projects/V0tpeuMg
there are others out there
From: M100 <[email protected]> on behalf of
"[email protected]" <[email protected]>
Reply-To: <[email protected]>
Date: Wednesday, August 21, 2019 at 4:31 PM
To: "[email protected]" <[email protected]>
Subject: [M100] Need help with bad RAM identification and replacement
Can someone verify for me that B000-BFFF would be part of the M7 (Option RAM
#2) RAM chip? Of the four RAM chips, this is the second one from the left.
Second question is... where can I buy replacement RAM for this? I am good with
a soldering iron so I realize I will have to desolder the existing bad RAM and
socket it and pop in the new RAM.
