[Coco] Help with Nitros9 on SDC?

[L. Curtis Boyle]

If you hold down SHIFT when booting, does that make a difference?

L. Curtis Boyle
curtisboyle at sasktel.net



> On Apr 30, 2021, at 8:10 PM, Don Barber <don at dgb3.net> wrote:
> 
> Agree thats the simplest explanation, but I've tried 3-4 different 512k ram test software packages and they all come back as good.
> 
> Don
> 
> On 4/30/21 10:07 PM, L. Curtis Boyle wrote:
>> Maybe some bad RAM, perhaps? The stock games (for the most part) will run in 128K, but EOU (since it preloads some things) definitely needs 512K.
>> 
>> L. Curtis Boyle
>> curtisboyle at sasktel.net
>> 
>> 
>> 
>>> On Apr 30, 2021, at 7:49 PM, Don Barber <don at dgb3.net> wrote:
>>> 
>>> Hi folks, another data point on this: since two other folks said the image booted fine on their 6309 coco3, I went ahead and ordered a 6309, and got it installed tonight. And guess what? Same failure.
>>> 
>>> I'm really at a loss now. Obviously something is broken on my coco3 but can't figure out what. I'm getting the weird error 244 behavior in OS9 after doing disk access, and the failure to boot the latest EOU 6.3 beta, but all the stock commercial apps/games all seem to be fine.
>>> 
>>> Does anyone have any ideas?
>>> 
>>> Related: can someone point me to the disk image containing the utilities described in https://colorcomputerarchive.com/repo/Documents/Manuals/Hardware/Color%20Computer%203%20Diagnostics%20Manual%20%28Tandy%29.pdf?
>>> I see several diagnostic disks in the archive but they're all earlier versions, not for the coco3.
>>> 
>>> Thanks,
>>> 
>>> Don
>> 
> 
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