Help diagnosing boot issue SWTPC 6800

Nick Allen mail.nickallen at
Mon Jan 1 17:03:11 CST 2018

Thanks for the tips everyone!  I can confirm power is GOOD, and the 
problem persists even without the RAM installed (Just CPU and MP-C or 
MP-S board).  I am going to clean the buss connectors and see if it helps!

On 1/1/2018 12:32 PM, Nick Allen wrote:
> Hey everyone, Happy New Years!  I am thankful for an active community 
> that enjoys helping each other learn, and today I am coming with an 
> ask for help.
> I have a SWTPC 6800 and ADM3A terminal, I can get it to boot, and when 
> it boots it will continue to boot for several hours.  But getting it 
> to successfully boot takes upwards of 100 power OFF and ON cycles.  
> The other 99 times, I get a continuous stream of random ASCII 
> characters (see video link below).  It's my first time seeing this 
> type of issue that happens intermittently, and wondering if anyone has 
> any insights in what might be causing this.  I suspect its a faulty IC 
> on the Processor board that resets or controls the OS reset, will need 
> to deep dive and diagnose, but thought I would ask for some direction 
> first.
> Thanks in advance!
> -Nick

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