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<p>Hey Richard,</p>
<p>Unfortunately that is not how the 1E works. Only one of the
special memory boards with the custom P2 cable will work.</p>
<p>Do the sun 3e boards use a special cable or just the standard VME
bus? If standard VME you can map them in manually but they will
exist in IO (aka obio or "type 1") space and won't be cacheable.</p>
<p>The custom P2 cable carries the remaining signals to detect
memory space accesses similar to the 'SBus Expansion Connector" on
SS1/SS2 to use the special SBus memory boards.</p>
<p>Sorry to disappoint,<br>
Ethan<br>
</p>
<div class="moz-cite-prefix">On 5/23/22 17:29, Richard wrote:<br>
</div>
<blockquote type="cite"
cite="mid:2663AB1A-D235-4E5C-ACBD-89518AB9ABFB@trick-1.net">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
Sadly they are all I have…I was working on the theory that owners
of the 3/E would have upgraded to the 4/E without issue.
<div><br>
</div>
<div>Much like the 3/260 to 4/260 upgrade I did back in the day.
Remove old cpu board insert new COU board, install fresh OS and
keep using all the memory boards etc.<br>
<br>
<div dir="ltr">Sent from my iPhone</div>
<div dir="ltr"><br>
<blockquote type="cite">On 23 May 2022, at 17:11, Plamen
Mihaylov <a class="moz-txt-link-rfc2396E" href="mailto:plamenspam@afterpeople.com"><plamenspam@afterpeople.com></a> wrote:<br>
<br>
</blockquote>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr">Hi Richard,
<div><br>
Maybe there is incompatibility between 3E and 1E mem
boards when they are stacked. Do you have 4E60-16 or/and
501-8060 to test ?</div>
<div><br>
</div>
<div>Best regards,<br>
Plamen</div>
<div><br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Mon, May 23, 2022 at
9:46 AM Richard <<a href="mailto:ejb@trick-1.net"
moz-do-not-send="true" class="moz-txt-link-freetext">ejb@trick-1.net</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">
<div style="overflow-wrap: break-word;">Hi Plamen
<div><br>
</div>
<div>Manual indicates that multiple are supported</div>
<div><br>
</div>
<div><a
href="http://www.bitsavers.org/pdf/sun/sparc/800-8137-02_The_SPARCengine_1E_CPU_Card_Users_Manual_Apr90.pdf"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">http://www.bitsavers.org/pdf/sun/sparc/800-8137-02_The_SPARCengine_1E_CPU_Card_Users_Manual_Apr90.pdf</a></div>
<div><br>
</div>
<div>See pages 36 and 37…..</div>
<div><br>
</div>
<div>Richard<br>
<div><br>
<blockquote type="cite">
<div>On 23 May 2022, at 3:45 pm, Plamen Mihaylov
<<a
href="mailto:plamenspam@afterpeople.com"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">plamenspam@afterpeople.com</a>>
wrote:</div>
<br>
<div>Hi Richard,
<div><br>
</div>
<div>I don’t sparcengine 1E is designed to
handle 2 memory boards.</div>
<div><br>
</div>
<div><br>
</div>
<div>Best regards,</div>
<div>Plamen</div>
<div><br>
On Monday, May 23, 2022, Richard <<a
href="mailto:ejb@trick-1.net"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">ejb@trick-1.net</a>>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">Hi
folks<br>
<br>
Looking for some suggestions/guidance or
help.<br>
<br>
I am Looking to add 2x 4Mb Sun 3/E memory
boards to the SPARCEngine 1E.<br>
<br>
I do note that these are memory boards
from the Sun3/E but am of the
understanding that they will work.<br>
<br>
Reading through the SPARCEngine manual I
have added the jumpers to my schroff
Backplane to bridge slot 2 as this is
empty - the sbus video card occupies the
slot.<br>
<br>
Configuration is<br>
Slot1: SPARCEngine<br>
Slot2: jumpered and empty<br>
Slot3: 4Mb memory bord jumpered for 4-8MB<br>
Slot4: 4Mb memory bord jumpered for
8-12Mb.<br>
<br>
Now on post I don’t see the extra 8mb.<br>
<br>
Anyone got any ideas ? I read something
about telling the nvram about the VME
cards but not familiar with that process
or how to do so.<br>
<br>
Thanks in advance <br>
<br>
Richard <br>
<br>
Sent from my iPhone<br>
<br>
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