DEC DELQA - seems not to work. Anyone got a spare? [SOLVED] - test-drb@ccmp.vtda.org

6 Nov 2016

On 2014-10-26 3:07 PM, Toby Thain wrote:
...
  On 21/10/14 7:38 AM, Noel Chiappa wrote:
   From:
Toby Thain 
  Looking to see what the internal self-test
returns as an error  code
  (that can be done with console ODT, it
doesn't need a program) is
 probably the first step in diagnosing. 
...  OK, after powerup, the bits of
the VAR register (e/w/p 2000192c) are
 D800, i.e. the test result bits VAR12:10 are 1,1,0 - meaning RAM test
 failed. 
Hi all,

As an update to this project, I can report that the DELQA has been 
repaired with four new static RAM chips, and now the MicroVAX II's 
network is fully working (including netboot).

Credit due to Joe Zatarski (joe_z) who did a beautiful job of 
desoldering and putting sockets in for the four RAM chips.

--Toby

...

 I must be doing something wrong running the test manually, though -

 >> d/w/p 2000192c 2000 
 Just leaves 2000 in the VAR register, permanently.

 --Toby

     Noel