AsRock Z87 Extreme 4- error code 40 & 4f

For the past 5 hours my friend and i have been trying to put together a computer. we have checked all the cables, the CPU, everything we could think of. Ever time we try to start it up the Dr. Debug comes up with the number 40 then goes to 4f. any suggestions?
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  1. Best answer
    what processor do you have? on a forum on another website they problem was solved with a new chip
  2. you also wouldn't happen to be using an older power supply would you? in the forum it said a better 600w worked, also if you have access to another computer download the instant flash
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