The memory spec is apparently the same as that for the NSE-1, which
supports 256M in a single slot. A 256M DIMM from a 3-rd party NSE-1
upgrade kit worked ok, in a brief trial.
Of course there's no guarantee that some "generic" PC100 DIMM of
the same feature set will work, there are DRAM parameters beyond
counting and the Cisco implementation may or may not be tolerant.
That's where the 3rd party vendors justify their markup on the
cisco-specific memory. I've had "right spec" generic fail in a
NPE-300, so you have to weigh your options.
This particular issue would be more important if NPE-225's were
much cheaper, faster or if they were readily available on the used
equipment market. 8-)
George
> Resent-Date: Tue, 29 May 2001 10:49:07 -0400
> Received-Date: Tue, 29 May 2001 10:46:45 -0400
> Date: Tue, 29 May 2001 10:46:44 -0400 (EDT)
> From: <jlewis@lewis.org>
> X-Sender: <jlewis@redhat1.mmaero.com>
> To: Gert Doering <gert@greenie.muc.de>
> cc: <kf@reign.sk>, <cisco-nsp@puck.nether.net>
> Subject: Re: [nsp] 7206 NPE 200
> In-Reply-To: <20010529163119.I20626@greenie.muc.de>
> Resent-From: cisco-nsp@puck.nether.net
> X-Mailing-List: <cisco-nsp@puck.nether.net> archive/latest/6504
> X-Loop: cisco-nsp@puck.nether.net
> Precedence: list
> Resent-Sender: cisco-nsp-request@puck.nether.net
>
> On Tue, 29 May 2001, Gert Doering wrote:
>
> > > > The NPE-225 has one PC100 (?) DIMM which currently supports up to 128Mb,
> > > > but Cisco is in the process of certifying 256 Mb DIMMs.
> > >
> > > At one point many months ago, I ran a VXR with NPE-225 with a 256mb dimm.
> > > I guess it's not technically supported, but it seemed to work.
> >
> > Can you remember what kind of DIMM it was? PC100/PC133? ECC, or "plain"?
>
> IIRC, the 225 came with a PC100 64mb registered ECC dimm. IIRC, the one
> we put in was 256mb PC100 registered...but I don't remember if it was ECC
> or plain. I think it may have been plain. We had it laying around from
> some server upgrade parts that didn't get used and I figured I'd try it
> since we wanted more than 64mb. It worked, so we ran with it.
>
> > I didn't mean to imply that it doesn't work, I just meant "Cisco is not
> > admitting yet that it works, and you can't purchase certified 256Mb DIMMs
> > for the 225" :-)
>
> I realized that. They can't certify existing NPE's for more memory if
> they wouldn't already work with it. They just don't technically support
> it yet.
>
> --
> ----------------------------------------------------------------------
> Jon Lewis *jlewis@lewis.org*| I route
> System Administrator | therefore you are
> Atlantic Net |
> _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
>
>
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