[j-nsp] m10 RE-2 memory upgrade troubles

[David Ball]

  Identical Kingston DIMMs as follows:

KVR133X72RC3L/256
"256MB Low Profile PC133 Registered ECC DIMM"

   I tried the DIMMs 1 at a time in an old PC at home that takes
168-pin DIMMs and the PC booted, but not when both DIMMS are inserted
together (not sure if the PC can handle 512MB anyways...am trying to
look it up now).

David


On 3/9/07, Jonas Frey <jf at probe-networks.de> wrote:
> David,
>
> could you give us the part numbers of the kingstom ram you purchased?
> Regarding upgrading ram: some people have done it successfully and
> documentated it somewhat at juniper.cluepon.net.
>
> Anyway first thing i'd do is getting 3 completly equal type/size ram
> sticks and use them. I would never use different ram sorts (even if they
> are the same size). Not in a normal PC and not on a RE.
>
>
> Regards,
> Jonas Frey
>
>
> On Fri, 2007-03-09 at 10:45, David Ball wrote:
> >    I have an M10 (note: not an M10i) with a single RE-2 routing engine
> > which is hitting its head on memory (256MB).  I decided to take a
> > chance and purchase 2 more 256MB ECC low-profile DIMMS (Kingston
> > memory...I know, I know) in hopes of replacing the single that is in
> > there (which came with the router).
> >    The router booted, but only showed that it had 256MB instead of the
> > expected 512MB.  It also mentioned that it was non-ECC, but this was
> > resolved by placing the DIMMS in slots 1 and 2, and leaving 3 blank.
> > (as per a posting I read earlier tonight, but which I can no longer
> > find).  The memory then showed as being ECC w/hw something-or-other
> > (which is desired).
> >   Anyhow, I couldn't for the life of me get it to believe it had
> > 512MB.  Even tried adding the original DIMM (to give it 768 and occupy
> > all DIMM slots) but it wouldn't even boot, as somewhat expected.
> >   Aside from "you should only use Juniper RAM" and "you should upgrade
> > your routing engine", does anyone have any ideas or direction?  Would
> > a BIOS upgrade help at all?  This is simply a band-aid fix until our
> > T640 network is deployed at which point we can retire the m10s, but
> > for now, we need em.  The RE-2 is no longer supported by Juniper,
> > hence my asking you good folks.
> >   Thanks in advance.
> >
> > David
> > _______________________________________________
> > juniper-nsp mailing list juniper-nsp at puck.nether.net
> > https://puck.nether.net/mailman/listinfo/juniper-nsp
>
>
>