G5 video problem-please help

Discussion in 'PowerPC Macs' started by G5-Sir Mac Alot, Jul 6, 2014.

  1. G5-Sir Mac Alot macrumors member

    Sep 24, 2012
    Ridgefield, WA USA
    Recently acquired the Mac G5 version of the nVidia GeForce 6800 ultra for my G5 Dual 2.0. Ihave installed the card and when it starts up I get my cursor and a black screen and nothing else. It will boot the Leopard install disk and will boot if i hold down select key from start up (safe mode?) It worked fine with previous card ATI 9650. Please Help! Thank you!
  2. gavinstubbs09 macrumors 65816


    Feb 17, 2013
    NorCal boonies ~~~by Reno sorta
    This recently happened to me. My 2.7 has a 9650 and I was experiencing the same symptoms as you. I put the 9600 in that I had, and I would get it to work, then freeze up, and after that point I had the same issue with the 9600 as I did with the 9650. I took the cards apart, repasted them, and that did nothing to help. I ended up reflowing the board and now it works, so a mystery I'll never know.

    Try the basic things like re-seating and all the resets (button under ram, SMU reset, PRAM, etc).

Share This Page