Where can I get a cheap MDD power supply?

Discussion in 'PowerPC Macs' started by FineFuturity, May 20, 2015.

  1. FineFuturity macrumors member

    Feb 19, 2012
    TX, United States
    I've looked on eBay and the prices for those are absolutely egregious. I've also googled around and that didn't give me anything better.

    Is there a third party site I don't know of maybe? :p
  2. bunnspecial macrumors 603


    May 3, 2014
    There are four options I know of:

    1. Pay the refurb prices on EBay for one that you know is good, warrantied, and will work.

    2. Find the bad caps and attempt the repair yourself

    3. Find a cheap MDD and hope the PSU isn't near death

    4. Hack an ATX PSU to work. This is not trivial, and you have to be careful about picking one with the correct trickle voltages the logic board wants to see. You also lose the ability to power an ADC display directly from your computer. If you don't want to deal with rewiring, there's someone who sells premade adapters for about $30. This route-by the time you buy a good quality ATX PSU and the adapter-is about as expensive as a refurb one.
  3. KingKen1986 macrumors regular


    Aug 16, 2012
    Well the best I can tell you is ebay, but you want to look for the 360 watt ones instead of the 400 watters, the 360 watt power supplies were the updated ones that didn't go bad as often and also don't have the noise problem, thats the only 2 bits I can give you.
  4. MisterKeeks macrumors 68000


    Nov 15, 2012
    I would at least try the capacitor repair, you have nothing to lose.
  5. DZ/015 macrumors 6502a


    Mar 23, 2003
    New England
    I fit the contents of a 400w mATX power supply into the MDD power supply case. As noted, I lost the ability to use an ADC display, but I don't have one anyway.

    Far quieter than the original since I removed the 2 60mm fans in favor of a single 80mm fan.
  6. jbarley macrumors 68030


    Jul 1, 2006
    Vancouver Island
    Would losing this ability also mean you would not have to bother with the "famous" taping of pins 3 & 11 on some of the better video card upgrades.
    If so, it might be considered a 'bonus' by some of us.
  7. mikiotty macrumors 6502


    Mar 15, 2014
    Rome, Italy
    No, you still need to tape the pins unfortunately.
  8. jbarley macrumors 68030


    Jul 1, 2006
    Vancouver Island
    Damn, sometimes you just can't win for losing...

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