From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from hiscom.nl (unknown [130.78.143.1]) by dsl2.external.hp.com (Postfix) with ESMTP id 764DF4829 for ; Fri, 11 Oct 2002 01:52:38 -0600 (MDT) Message-Id: <02Oct11.100511cest.119048@ns.hiscom.nl> From: =?iso-8859-15?Q?=22Beerse=2C_Corn=E9=22?= To: "'Harri Haataja'" Cc: "'parisc-linux maillist'" Subject: RE: [parisc-linux] Which Memory to use on a 715/80? Date: Fri, 11 Oct 2002 09:52:28 +0200 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C270FB.257B1240" Sender: parisc-linux-admin@lists.parisc-linux.org Errors-To: parisc-linux-admin@lists.parisc-linux.org List-Help: List-Post: List-Subscribe: , List-Id: parisc-linux developers list List-Unsubscribe: , List-Archive: This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C270FB.257B1240 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: quoted-printable > -----Original Message----- > From: Harri Haataja [mailto:harri.haataja@smilehouse.com] >=20 > On Thu, Oct 10, 2002 at 05:34:47PM +0200, "Beerse, Corn=E9" wrote: > > > -----Original Message----- > > > From: Grant Grundler [mailto:grundler@dsl2.external.hp.com] > > > Derek Engelhaupt wrote: > > > > Well, don't think any other manufacturer made memory for the = 715 > > > > series. I have looked at Dataram and others, but they only = seem > > > > to have memory for the D,K,N,L, and A class servers. > > > I thought Kingston *did* (maybe no more). > > I recal by head (and might be wrong) to have used pc-based memory > > modules in a 712/80. There was something with parity (it needs it = or > > it hates it, don't know). >=20 > You usually hear that HP uses similiar form but completely different > ram. But that's mostly on 715/735/800, maybe 712 was different. That > would be a pleasant surprise. > Mostly you always want parity. I would doubt anything explicitly > demanding no parity. Harri is right here, I was mixing SunSparc and HP-PARisk architectures. = The 712 memory does NOT fit (without a hamer). >=20 > > Try what the bootloader says if you fit it with pc-based memory > > modules, that have the same physical lay-out. (edo-ram is a=20 > term that > > comes to mind, try it or it's predecessor). >=20 > EDO AFAIK never occurs together with ECC so that's the word to avoid > when looking for ram for older workstations ad servers. > 36-bit FPM True-parity ECC SIMMs are what work in, for example, DEC > Alpha AXPpci, Multia, SGI Indy, Indigo=B2, matching Challenges,=20 > IBM RS6000 > 7006 and other machines of the era and most(?) pc's. No kind=20 > of EDO ram > works. >=20 > > I might be totaly wrong here, in those days (a former job)=20 > I was using > > both SunSparc stations and HP 712 machines. >=20 > Sparcstations mostly use weird rams like JEDEC DIMM's apart from the > very old ones that use 36-pin simm's that seem regular. Sun Sparc ELC and SunSparcClassic (and similar Sparc 4C architecture?) = can use the same memory modules as 486-PC's. Those are NOT edo ram as in pentium-pc's, however they do fit... It might not be what Sun tells, it = is wat is currently running at home... >=20 >=20 > This is what I remember. No guarantees either. I've tried EDO ram in a SParc Classic but it does not show up. After a = short test (15 minutes power on and try to use it) I experienced no damage on = both processorboard or memory. Then, again: no guarantees... >=20 > --=20 > I used to herd dairy cows. Now I herd lusers. Apart from the=20 > isolation, > I think I preferred the cows. They were better conversation, easier = to > milk, and if they annoyed me enough, I could shoot them and eat them. > -- Rodger Donaldson=20 Now I know where the name "tucows" comes from ;-) CBee ------_=_NextPart_001_01C270FB.257B1240 Content-Type: text/html; charset="iso-8859-15" Content-Transfer-Encoding: quoted-printable RE: [parisc-linux] Which Memory to use on a 715/80?

> -----Original Message-----
> From: Harri Haataja [mailto:harri.haataja@smileh= ouse.com]
>
> On Thu, Oct 10, 2002 at 05:34:47PM +0200, = "Beerse, Corn=E9" wrote:
> > > -----Original Message-----
> > > From: Grant Grundler [mailto:grundler@dsl2.exter= nal.hp.com]
> > > Derek Engelhaupt wrote:
> > > > Well, don't think any other = manufacturer made memory for the 715
> > > > series.  I have looked at = Dataram and others, but they only seem
> > > > to have memory for the D,K,N,L, = and A class servers.
> > > I thought Kingston *did* (maybe no = more).
> > I recal by head (and might be wrong) to = have used pc-based memory
> > modules in a 712/80. There was something = with parity (it needs it or
> > it hates it, don't know).
>
> You usually hear that HP uses similiar form but = completely different
> ram. But that's mostly on 715/735/800, maybe = 712 was different. That
> would be a pleasant surprise.
> Mostly you always want parity. I would doubt = anything explicitly
> demanding no parity.

Harri is right here, I was mixing SunSparc and = HP-PARisk architectures. The 712 memory does NOT fit (without a = hamer).

>
> > Try what the bootloader says if you fit it = with pc-based memory
> > modules, that have the same physical = lay-out. (edo-ram is a
> term that
> > comes to mind, try it or it's = predecessor).
>
> EDO AFAIK never occurs together with ECC so = that's the word to avoid
> when looking for ram for older workstations ad = servers.
> 36-bit FPM True-parity ECC SIMMs are what work = in, for example, DEC
> Alpha AXPpci, Multia, SGI Indy, Indigo=B2, = matching Challenges,
> IBM RS6000
> 7006 and other machines of the era and most(?) = pc's. No kind
> of EDO ram
> works.
>
> > I might be totaly wrong here, in those = days (a former job)
> I was using
> > both SunSparc stations and HP 712 = machines.
>
> Sparcstations mostly use weird rams like JEDEC = DIMM's apart from the
> very old ones that use 36-pin simm's that seem = regular.

Sun Sparc ELC and SunSparcClassic (and similar Sparc = 4C architecture?) can use the same memory modules as 486-PC's. Those = are NOT edo ram as in pentium-pc's, however they do fit... It might not = be what Sun tells, it is wat is currently running at home...

>
>
> This is what I remember. No guarantees = either.

I've tried EDO ram in a SParc Classic but it does not = show up. After a short test (15 minutes power on and try to use it) I = experienced no damage on both processorboard or memory. Then, again: no = guarantees...

>
> --
> I used to herd dairy cows. Now I herd lusers. = Apart from the
> isolation,
> I think I preferred the cows. They were better = conversation, easier to
> milk, and if they annoyed me enough, I could = shoot them and eat them.
>       =         -- Rodger Donaldson

Now I know where the name "tucows" comes = from ;-)



CBee

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