Re: VIC-II DRAM refresh

From: Francesco Messineo <>
Date: Sat, 15 Oct 2016 19:12:20 +0200
Message-ID: <>
On Sat, Oct 15, 2016 at 7:06 PM, Gerrit Heitsch
<> wrote:
> On 10/14/2016 01:21 PM, wrote:

> And yes, I also had a few DRAMs that were just dead and doing bad things on
> the bus. One I found by stacking not one but two working 4164 on top of the
> bad one (*) after noticing the activity on the data line looked strange on
> the scope.

that's interesting. I always stacked one good chip, if it didn't help,
I would revert to code
or something else for troubleshooting. Next time I'll try the double
stack if the single stack fails :) I guess the majority wins at one
point :)


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Received on 2016-10-15 18:00:36

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