<div dir="ltr">My ultra 2 is happily running with an external CR2032 battery with OpenBoot 3.25<div><img src="cid:ii_m2wpijjw2" alt="image.png" width="562" height="421"><br><div><br></div><div><img src="cid:ii_m2wph1n01" alt="image.png" width="562" height="421"><br><div><br></div><div><img src="cid:ii_m2wpgcy60" alt="image.png" width="562" height="421"><br></div><div><br></div><div>Little bit of a hack job on a milling machine to keep it steady, but very straight forward. Just take it slow.</div><div><br></div><div>-Bob</div></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Oct 29, 2024 at 1:55 AM silcreval via rescue <<a href="mailto:rescue@sunhelp.org">rescue@sunhelp.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I've started restoring an Ultra 2 which I've had on the shelf for a long time. <br>
<br>
These are nice machines, and sort of a bridge between the older pizza box Sun's and the later Ultra 10/30/60/80. They still come with SBUS slots, but have a UPA slot for a graphics card, usually a Creator3D.<br>
<br>
They seem to take up to 2G of RAM. Mine has a single CPU and 256M of RAM by the looks of things (4 x 64). There are dual HD which are 4G each.<br>
<br>
Mine seems to work fine and even boots to my surprise. However the NVRAM is of course dead as a dodo.<br>
<br>
Now I've done the usual dremel job on the NVRAM, fitted a battery and then reset and re-entered the NVRAM values using MKP on the boot prompt.<br>
<br>
But unusually this failed to work. I'm pretty sure the soldering etc is OK, and I actually removed the old battery from the chip so there is no short from that.<br>
<br>
As this is not the usual M48T02 chip, it is instead a M48T59Y, I'm wondering if I'm missing something with the reset, or if the chip is just literally dead at this point?<br>
<br>
Thanks as ever for the help<br>
<br>
- Ian<br>
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