Re: VS3100 M76 Memory Question

[Holm Tiffe <holm%freibergnet.de@localhost>]

Jan-Benedict Glaw wrote:

> On Fri, 2013-03-22 19:25:24 +0100, Holm Tiffe <holm%freibergnet.de@localhost> 
> wrote:
> > I'm currently have 16MB of Memory in the VS3100 M76, that are
> > some big double sided Modules, have four of them.
> > I can't look what kind it is, the machine is currently reformatting the
> > Disk..
> > 
> > In a antistatic bag I've got 8 pcs  additionally:
> > 
> > * 54-19145-AU * *A01* * AY33801071 *
> > 
> > "4 MEG MEM" is etched in the boards, a DIGITAL Logo and 5019144-01 also.
> > 
> > Should they work in the M76?
> > I've tested them, two of them seemed to work flawlessly, more is making all
> > kind of trouble, eg. Test repeating until "B" and than reboot loop at 
> > startup.
> > 
> > What is this for Memory? I don't think that they are all bad ...
> 
> I don't know if these modules are expected to work in the m76, but
> this, first of all, looks like a speed/timing issue. Please have a
> look at the memory ICs used on your (already-installed) memory modules
> and compare their speed with those of the new modules.
> 
> As a hint: http://www.schach-computer.info/wiki/images/f/ff/RAM.jpg
> 
> The "-70" indicated 70ns RAM. Though the '0' is omitted quite often.
> 
> MfG, JBG
> 
> -- 
>       Jan-Benedict Glaw      jbglaw%lug-owl.de@localhost              
> +49-172-7608481
> Signature of:                http://catb.org/~esr/faqs/smart-questions.html
> the second  :

The "older" Modules wich are labeled 5419103 5019079-01 are using Siemens
single bit 70ns Chips, the other ones are build of 4 single bit 70ns chips
and  eight 4 bit 80ns chips. (HYB511000Bj-70 and HYB514400BJ-80)

I've found out while googling a hour, that the first Type should be the
correct one for the M76.
I've posted another message in the meantime that still doesn't appeared here
describing my problems with that machine and netbsd.

(Mar 22 20:43:37 bmail postfix/smtp[94927]: BF01D929A50B:
to=<port-vax%netbsd.org@localhost>, relay=mail.netbsd.org[149.20.53.66]:25, 
delay=1.8,
delays=0.01/0.01/0.82/0.94, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as 
EDCEC14A21A))

Will post tomorrow again..


Regards,

Holm



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