Stephen, feel free to ping me if you think I can help. I have both an 8201a (currently hosting my REX#, and an 8201(no A).
On Fri, Sep 30, 2022 at 7:00 PM Stephen Adolph <[email protected]> wrote: > Ok well I suggest rather than bog down the list, let's sort it out > directly. > > I'll build a new one and see if I can find a problem. > > > > > On Friday, September 30, 2022, Mark McBride <[email protected]> wrote: > >> Holding ctrl down during entire process does not change the outcome: bank >> #2 still not recognized >> >> >> On 2022-09-30, at 8:12 PM, Stephen Adolph <[email protected]> wrote: >> >> 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 >>>> >>>> >>>> >>>> >>>> >>>> >> -- -- Brad Grier
