From: wolfgang_no_spam@maxi-dsl.de   
      
   It seems the power supply in my 520 server is dead. I've removed all   
   expansion cards and disconnected the RAID board and drives from the   
   power supply. Still no sign of life.   
      
   I suppose after 30 years, the manufacturer can't be blamed. Professional   
   repair or replacement through a retailer is out of the question due to   
   cost and/or availability.   
      
   I can think of three possible solutions.   
      
   A. Theoretically, I could use a 9595 power supply, which offers   
   compatible connectors and comparable power. Unfortunately, it would blow   
   hot air into the case. Not ideal.   
      
   B. The power supply for the PC Server 5x0 series has a connector for   
   Microchannel motherboards. IBM included an adapter board in the 520 case   
   that can power an AT motherboard (not ATX!). So, theoretically, an AT   
   power supply should also work, provided I had a reliable one.   
      
   C. Then there are ATX2AT adapter cables, which allow you to connect an   
   ATX power supply to the motherboard. Powerful, energy-efficient, and   
   quiet ATX power supplies are relatively inexpensive.   
      
   Of course, the adapter cable also has a drawback. Modern ATX power   
   supplies don't provide a 5-volt connection for the motherboard. I came   
   across this information in the adapter cable description. Apparently,   
   this can cause malfunctions with older sound cards in the ISA slot.   
      
   What do you think?   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)