Re: ?3C NVR WRTERR from my VAXstation 4000/60

On 2024-08-07, David Goodwin <david+usenet@zx.net.nz> wrote:

In article <v90ta8$3dtak$1@dont-email.me>, ldo@nz.invalid says...

 
On Wed, 7 Aug 2024 21:53:32 +1200, David Goodwin wrote:
 

Now I've got it off the shelf and its sadly no longer working. On power
up, I just get "?3C NVR WRTERR" on the serial console.

 
?NVR? = ?Non-Volatile RAM??

>
I assume so, which is why I replaced the DS1287A - the markings on the
old one imply a manufacture date sometime in 1991 so its battery was
sure to be flat.
>
But a brand new one manuactured in 2023 from a reputable source doesn't
seem to have solved the problem.

Any signs of damaged circuit board traces or similar ?

After you replace a DS1287A, are there any initialisation steps which
need to be performed ?

Simon.

--
Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP
Walking destinations on a map are further away than they appear.