[Info-vax] XP1000 hardware failure

[Joukj]

chris wrote:
> On 10/26/22 13:38, Joukj wrote:
>> Steven Schweda wrote:
>>>> One of my XP1000 machines gives some beeps [...]
>>>
>>>    I'd expect it to have LEDs, too, about which you also provided
>>> no actual information.
>>>
>>>   I have a Service Guide (HTML) at:
>>>
>>>       http://antinode.info/ftp/misc/xp1000sg.exe
>>>
>>> (Ignore the Windows-self-extracting part, and just hit it with
>>> UnZip.)  There's also something about the beep codes:
>>>
>>>       http://antinode.info/ftp/misc/xp1000-led-beep.txt
>>
>> That helped. Actually the led's did. they indicated 1111 1100 ; so 
>> indicating a problem with the CPU-board The beeps said 
>> beep-break-beep-beep, which is not one of the codes from the document.
>>
>> I replaced the CPU-board and the machine came to live again.
>>
>>           Jouk
> 
> Connectors can be the major weak link on systems, especially when
> they get old.The first thing I would do to track a fault on a
> previously good system is to unplug all connectors and reseat. That
> includes ram devices, simms etc. Perhaps you tried that already ?...
> 
> Chris
> 

In my case it is definitely the board. I could "reuse" the simms and the 
board gave the same problems in another system.
Anyway it is working again.

          Jouk