<div dir="ltr">I have a 3/80 that is flaky in a very similar way, I'm suspecting on-board caps at this point.<div><br></div><div>Dan.</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Sat, Dec 13, 2025 at 3:40\u202fPM HP van Braam 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">Hello all,<br>
<br>
Well I guess I celebrated a bit too early... The Ultra 10 worked for a<br>
day or two but today it was running VTS while I was having dinner, I<br>
came back to it on the ok prompt, presumably having crashed.<br>
<br>
When I tried rebooting the machine now I'm back where I started. With<br>
the power led staying off when booting the machine. I've tried moving<br>
my now one new NVRAM chip to the other board, but this also does not<br>
work.<br>
<br>
The same thing happened as the first time too. Earlier today the<br>
machine booted but complained about NVRAM contents. Then I re-did the<br>
whole nvram mkp stuff, and `banner` was happy again. But later the<br>
machine did fail again.<br>
<br>
Now, I did use a 48T58Y and not a 48T58 (without the Y), is there any<br>
chance that that just didn't work right? <br>
<br>
Thanks! <br>
<br>
- HP<br>
<br>
On Tue, 2025-12-09 at 20:18 +0000, HP van Braam wrote:<br>
> Hello!<br>
> <br>
> I have two Sun Ultra 10s with the same fault, and they came to get<br>
> the same fault in the same way.<br>
> <br>
> They both did the following:<br>
> <br>
> * Started to get IDProm errors<br>
> * Used the "normal" instructions for fixing this<br>
> * Some time later after a reboot things started to go wrong<br>
> <br>
> This sort of worked for a moment, but now when I apply power to<br>
> either machine the power led stays off (most of the time) in the very<br>
> rares time when the power led does turn on I can't succesfully boot<br>
> the machines. Sometimes they end up booting into Solaris but they are<br>
> not stable.<br>
> <br>
> For instance even dtlogin will just start and cycle on and off until<br>
> ultimately the system hangs entirely. At this point pressing stop+a<br>
> and resetting usually doesn't boot correctly.<br>
> <br>
> Swapping around ram/CPUs/power supplies between the two systems has<br>
> no effect. Removing the AFB doesn't really seem to change anything<br>
> either.<br>
> <br>
> It seems kind of unlikely that both computers have the same obscure<br>
> hardware fault in the same component, I hope this is all just the<br>
> IDProm fucking up.<br>
> <br>
> I tried both of the IDProm chips in my minipro reader and they seem<br>
> to not really read that same each time. And writing data to the chips<br>
> doesn't seem to "stick".<br>
> <br>
> Help would be very much appreciated! Thank you! <br>
> <br>
> - HP<br>
<br>
_______________________________________________<br>
rescue list - <a href="http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org" rel="noreferrer" target="_blank">http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org</a><br>
</blockquote></div>