[SunRescue] Ultra 5 Mem issues

[Daniel Debow Southwick]

To answer your question yes I did run the memory checker.... and it reads
all of the memory properly ( mixed or not ) in the ultra 5. it seems if I
go into single user mode and the comp seems to run fine but if I go to the
full boot process it gets a kernel panic about the time the login window
appears ( I run solaris 8 ). Maybe I need to try a different OS? Or
reinstall with the new ram in place so the kernel is awhere of the
changes? 

On Tue, 30 May 2000 nick at ns.snowman.net wrote:

> The AXi uses the same memory.  I've never seen issues where simms/dimms
> are detected too big, too small is the usual issue.  Have you tried
> booting with the 128/256's and running the memory checker that's built
> into the prom?
> 	Nick
> 
> On Wed, 31 May 2000, Ken Hansen wrote:
> 
> > Ultra 5's use odd memory (ECC EDO IIRC), not sure about the AXi
> > board you pulled them from. Unfortunately, the ECC EDO RAM you
> > need was only ever used in one or two SPARCS (obvious) and many
> > Pentium Pro servers. The RAM is not too hard to find (see memoryx.com)
> > but it does get rather  expensive (est. $1.50 - $2/Meg vs. < $1 for SDRAM
> > for a PC)...
> > 
> > Sorry,
> > 
> > Ken
> > n2vip at bellatlantic.net
> > 
> > ----- Original Message -----
> > From: "Daniel Debow Southwick" <southwick at gibralter.net>
> > To: <rescue at sunhelp.org>
> > Sent: Tuesday, May 30, 2000 12:41 PM
> > Subject: [SunRescue] Ultra 5 Mem issues
> > 
> > 
> > > Ok here's a good one, I've never bumped into this one. I had 4 128MB
> > > 168pin dimms that came off of a AXi Ultra sparc mainboard all the exact
> > > same. I attempted to replace the dimms currenly in my ultra 5 ( 2x 64MB )
> > > with the ones from the AXi mainboard. Here's where it gets wierd. I place
> > > all 4 if the 128MB dimms into the proper slots ( or I assume ) the 2 64MB
> > > dimms are removed. The boot prom reads that I have 1024MB of ram. At
> > > first I was quite happy that the dimms were incorrectly labeled, and I
> > > now had a GB of memory. But behold I get kernel panics as soon as the
> > > login window appears ( sometimes even before then ). I brought back the
> > > memory to the AXi board and they register as 128 meg dimms not 256 as my
> > > ultra 5 reads them. I've tested them and there appears to not be any flaws
> > > in the dimms. Is there a incompatiblity issue here? ??? The dimms I've
> > > removed are 60ns and the ones I'm putting in are 60ns. I'd also like to
> > > know if a PROM update might help. I can't remember my prom code so that
> > > doesn't help much. But if you can think of something it would be a great
> > > help. I'd just love to get this thing working with 512MB of ram.
> > >
> > > Thanks
> > >
> > > Dan
> > > -----------------
> > > !!!!!!!!!!!!!!!
> > > I read Dilbert daily, often understanding the humor
> > >
> > > _______________________________________________
> > > Rescue maillist  -  Rescue at sunhelp.org
> > > http://www.sunhelp.org/mailman/listinfo/rescue
> > 
> > _______________________________________________
> > Rescue maillist  -  Rescue at sunhelp.org
> > http://www.sunhelp.org/mailman/listinfo/rescue
> > 
> 
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