grounding PSU fail

[nakataf01]

Hello,
  after i manager to run 2 x r9 290 i'm facing now a new probleme wich is after 2 or 3H of mining, the grounded PSU fan fail and stops the 2nd card r9 290 froze and rig shutdown suddenly.
i tryed to start the grouding PSU again but nothing happend untill 30minute then i can start it again and start the rig again for 2 to 3h.
any idee

[NotFuzzyWarm]

Try asking in the ALTCOIN areas where like-minded folks are.
As stated in the top posts -- This area is BITCOIN only. We don't use no stinkin' GPU's.