Yah... interesting...
I guess I would hold cntl down through the cold restart process.

I build these ram modules and test actually on an M100 with a test harness.

I'll go back and see if one of these upgrades runs in an 8201 also.  I know
they did.  Maybe something changed.

Greg i thought you had alternative rams to try also?

I would suggest moving 16k from bank 1 to bank 2 to prove the main board is
basically ok.

Steve



On Friday, September 30, 2022, Gregory McGill <[email protected]>
wrote:

> Interesting I'm having the same issue after installing 2nd bank memory..
> just can't get it to recognize there IS a 2nd bank
> mine is just a 8201 (no A)
>
> On Fri, Sep 30, 2022 at 3:42 PM Mark McBride <[email protected]> wrote:
>
>> I’m just getting back into my PC8201A after a very long hiatus.  It boots
>> up and everything works just fine in Bank #1.  A few sticky keys that need
>> to be cleaned.  I ordered and installed the Rex# rom from Stephen Adolph
>> and it works (thanks Stephen!).
>>
>> The issue I’m facing is that I can’t get to Bank #2.  It’s installed
>> (Stephen confirmed from a picture in a private email exchange).  I’ve
>> repeatedly tried a cold-start to access it with no luck.  According to the
>> manual, the cold-start for Bank #2 is:
>>
>> ==================
>> This type of Cold Start is performed in the MENU mode. The steps for the
>> Cold Start of Bank# 2 are performed while displaying Bank # 1, and the
>> steps for the Cold Start of Bank# 3 are performed while displaying Bank #
>> 2. The two steps of the Cold Start must be performed one right after the
>> other, with no time lapse between the two. The SHIFT Key is kept depressed
>> during both steps:
>> 1. Press the f.5 Function Key while keeping the SHIFT Key depressed. The
>> screen will clear for an instant at this time.
>>
>> 2. Press the CTRL Key immediately after pressing the f.5 Function Key,
>> while the SHIFT Key remains depressed and the screen is clear.
>>
>> This process will not work if the SHIFT Key is released before step 2 is
>> completed. The screen clears instantly after step 1, and step 2 must be
>> performed during the instant that the screen is cleared, before a new
>> screen is displayed.”
>> ==================
>>
>> Any ideas on what else to be trying/checking/doing would be appreciated.
>>
>> Best,
>>
>> Mark
>>
>>
>>
>>
>>
>>

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