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<blockquote style="position: relative; padding-left: 55px;"><section><a href="https://mstdn.io/users/codewiz/statuses/113663986483449611">Bernie (codewiz@mstdn.io)'s status on Tuesday, 17-Dec-2024 03:46:36 JST</a><a href="https://mstdn.io/@codewiz" title="codewiz@mstdn.io"><img src="https://gnusocial.jp/avatar/11383-48-20240209145447.webp" width="48" height="48" alt="Bernie" style="position: absolute; left: 0; top: 0;">Bernie</a><div><a href="https://mstdn.io/@codewiz/113642493344810262" rel="in-reply-to">in reply to</a></div></section><article><p>Last friday I started debugging the ZIP RAM bank.</p><p>Someone on the Acill Classics repair chat suggested running ziptest, an awesome tool probes each ZIP slot to debug issues like mine:<br><a href="https://aminet.net/package/util/misc/ZIPTest-1.1" rel="nofollow noreferrer">https://aminet.net/package/util/misc/ZIPTest-1.1</a></p><p>I populated the first 4MB of ZIP slots populated, and booted OS 3.2.2, which didn't recognize any Fast RAM in the expected range, $07000000-$07FFFFFF.</p><p>The output of ziptest makes me think that the entire bus is busted. Perhaps I have a broken Ramsey?</p><p><a href="https://mstdn.io/tags/commodore" rel="tag">#commodore</a> <a href="https://mstdn.io/tags/amiga" rel="tag">#amiga</a> <a href="https://mstdn.io/tags/vintagecomputing" rel="tag">#vintagecomputing</a></p></article><footer><a rel="bookmark" href="https://gnusocial.jp/conversation/4111860#notice-8204892">In conversation</a><time datetime="2024-12-17T03:46:36+09:00" title="Tuesday, 17-Dec-2024 03:46:36 JST">about a month ago</time> <span>from <span><a href="https://mstdn.io/@codewiz/113663986483449611" rel="external" title="Sent from mstdn.io via ActivityPub">mstdn.io</a></span></span><a href="https://mstdn.io/@codewiz/113663986483449611">permalink</a><h4>Attachments</h4><ol><li><label><a rel="external" href="https://gnusocial.jp/attachment/3712889">Untitled attachment</a></label><br><a href="https://media.mstdn.io/mstdn-media/media_attachments/files/113/663/954/924/534/536/original/07b762d45ca4ebbf.png" rel="external">https://media.mstdn.io/mstdn-media/media_attachments/files/113/663/954/924/534/536/original/07b762d45ca4ebbf.png</a></li><li><label><a rel="external" href="https://gnusocial.jp/attachment/3712890">Untitled attachment</a></label><br><a href="https://media.mstdn.io/mstdn-media/media_attachments/files/113/663/955/442/882/154/original/0226312b09eda077.png" rel="external">https://media.mstdn.io/mstdn-media/media_attachments/files/113/663/955/442/882/154/original/0226312b09eda077.png</a></li><li><label><a rel="external" href="https://gnusocial.jp/attachment/3712892">Untitled attachment</a></label><br></li></ol></footer></blockquote>

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Bernie (codewiz@mstdn.io)'s status on Tuesday, 17-Dec-2024 03:46:36 JST Bernie
in reply to
Last friday I started debugging the ZIP RAM bank.
Someone on the Acill Classics repair chat suggested running ziptest, an awesome tool probes each ZIP slot to debug issues like mine:
https://aminet.net/package/util/misc/ZIPTest-1.1
I populated the first 4MB of ZIP slots populated, and booted OS 3.2.2, which didn't recognize any Fast RAM in the expected range, $07000000-$07FFFFFF.
The output of ziptest makes me think that the entire bus is busted. Perhaps I have a broken Ramsey?
#commodore #amiga #vintagecomputing
In conversationabout a month ago from mstdn.iopermalink
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