On 17/03/2016 6:16 PM, frank wrote:   
   > Hi all,   
   >   
   > an easy one. It might be interesting if someone still hasn't heard about   
   > piggybacking of the DRAM chips to identify ram problems.   
   > This usually works when the opening screen bytes count isn't correct   
   > or when it just throws an out of memory error at the start.   
   > This means that at least page 0 and page 1 (the stack) are mostly working   
   > and some other parts of the ram space are not working.   
   >   
   > https://www.youtube.com/watch?v=hZjjOd1OJYs   
   >   
   > Don't bother trying to piggyback the DRAMs on a black screen situation anyway   
   > :-)   
   >   
      
   I haven't watched the video yet but I could have told you that ;-)   
      
   Usually the fingertip touch tells you of a DRAM problem. If it's a C64C   
   it is almost certainly a DRAM problem if you get a black screen. I've   
   had to replace many.   
      
   Check the power supply ripple on the 5V, the DRAM really doesn't like it.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3)