[SunRescue] Ultra 5 Mem issues

[nick at ns.snowman.net]

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
> >
> > _______________________________________________
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> 
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