[SunRescue] A couple of things.....

Wed Feb 9 07:20:16 CST 2000

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The NVRAM (as opposed to the EPROM) is different between models. The NVRAM
from a lunchbox is not the same as an NVRAM for an SS10. I learned this the
personal way just the other day. <grin> Good thing I had another machine I
could lift one from.

The lunchbox NVRAMs don't have as many pins.

Programming them isn't hard, per the FAQ. 

Steve

> -----Original Message-----
> From: Earl Baugh [mailto:earl at baugh.org]
> Sent: Tuesday, February 08, 2000 8:38 PM
> To: rescue at sunhelp.org
> Subject: [SunRescue] A couple of things.....
> 
> 
> So, my second request.  From the earlier discussions, it seemed that 
> there were places to pick up un-programmed NVRAMs, but I was 
> wondering 
> if someone had one sitting around from an old IPC they'd be willing to
> part with...I'm willing to pay a little, but this machine isn't work
> any huge investment....just scrap parts as they come up...
> (BTW, is there any difference between the NVRAMs between the
> various models...i.e. could I plug a SS10 NVRAM into the IPC?
> what would be the implications?? Is there any machine specific
> info in the NVRAM?...I've never done any reading to know what
> all was stored there, aside from what I heard about the ethernet 
> address and machine id being there [is that correct?])

Well, it seems to me that there is definately some machine specific
information stored there, since different revisions allow for different
processors to be used in the SS10/20 and a couple of others.  I'd say that
you really need to get the programming that is specific to your particular
machine, but the physical NVRAM chips could be identical (although they
don't have to be).  You might want to read over the NVRAM FAQ (which I
haven't done myself) to see what you can learn.
	Greg

_______________________________________________
Rescue maillist  -  Rescue at sunhelp.org
http://www.sunhelp.org/mailman/listinfo/rescue

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<TITLE>RE: [SunRescue] A couple of things.....</TITLE>
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The NVRAM (as opposed to the EPROM) is different =
between models. The NVRAM from a lunchbox is not the same as an NVRAM =
for an SS10. I learned this the personal way just the other day. =
<grin> Good thing I had another machine I could lift one =
from.

<P><FONT SIZE=3D2>The lunchbox NVRAMs don't have as many pins.</FONT>
</P>

Programming them isn't hard, per the FAQ.

<P><FONT SIZE=3D2>Steve</FONT>
</P>

> -----Original Message-----
 > From: Earl Baugh [<A =
HREF=3D"mailto:earl at baugh.org">mailto:earl at baugh.org</A>]
 > Sent: Tuesday, February 08, 2000 8:38 PM
 > To: rescue at sunhelp.org
 > Subject: [SunRescue] A couple of =
things.....
 > 
 > 
 > So, my second request.  From the earlier =
discussions, it seemed that 
 > there were places to pick up un-programmed =
NVRAMs, but I was 
 > wondering 
 > if someone had one sitting around from an old =
IPC they'd be willing to
 > part with...I'm willing to pay a little, but =
this machine isn't work
 > any huge investment....just scrap parts as they =
come up...
 > (BTW, is there any difference between the =
NVRAMs between the
 > various models...i.e. could I plug a SS10 NVRAM =
into the IPC?
 > what would be the implications?? Is there any =
machine specific
 > info in the NVRAM?...I've never done any =
reading to know what
 > all was stored there, aside from what I heard =
about the ethernet 
 > address and machine id being there [is that =
correct?])

<P><FONT SIZE=3D2>Well, it seems to me that there is definately some =
machine specific</FONT>
<BR><FONT SIZE=3D2>information stored there, since different revisions =
allow for different</FONT>
<BR><FONT SIZE=3D2>processors to be used in the SS10/20 and a couple of =
others.  I'd say that</FONT>
<BR><FONT SIZE=3D2>you really need to get the programming that is =
specific to your particular</FONT>
<BR><FONT SIZE=3D2>machine, but the physical NVRAM chips could be =
identical (although they</FONT>
<BR><FONT SIZE=3D2>don't have to be).  You might want to read over =
the NVRAM FAQ (which I</FONT>
<BR><FONT SIZE=3D2>haven't done myself) to see what you can =
learn.</FONT>
<BR>        <FONT =
SIZE=3D2>Greg</FONT>
</P>

<P><FONT =
SIZE=3D2>_______________________________________________</FONT>
<BR><FONT SIZE=3D2>Rescue maillist  -  =
Rescue at sunhelp.org</FONT>
<BR><FONT SIZE=3D2><A =
HREF=3D"http://www.sunhelp.org/mailman/listinfo/rescue" =
TARGET=3D"_blank">http://www.sunhelp.org/mailman/listinfo/rescue</A></FO=
NT>
</P>

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