6 Nov
2016
6 Nov
'16
6:13 p.m.
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
Glad to have helped :)
Joe Zatarski
>>>* 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
*>>>>>>>
7 Nov
7 Nov
8:44 a.m.
On Sun, Nov 6, 2016 at 6:13 PM, Joseph Zatarski <jzatar2 at illinois.edu>
wrote:
I love reading stories of component-level repair.
--
Ian S. King, MSIS, MSCS, Ph.D. Candidate
The Information School <http://ischool.uw.edu>
Dissertation: "Why the Conversation Mattered: Constructing a Sociotechnical
Narrative Through a Design Lens
Archivist, Voices From the Rwanda Tribunal <http://tribunalvoices.org>
Value Sensitive Design Research Lab <http://vsdesign.org>
University of Washington
There is an old Vulcan saying: "Only Nixon could go to China."
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
Glad to have helped :)
Joe Zatarski
>>>* 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
*>>>>>>>
3009
days inactive
3009
days old
1 comments
2 participants
participants (2)
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isking＠uw.edu -
jzatar2＠illinois.edu