[Info-vax] XP1000 hardware failure

[chris]

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