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Computer won't power up after a cmos clear

I've been trying to troubleshoot some problems with setting up SLI on my PC, and after attempting to clear the CMOS by reseating the battery, the computer won't start up at all. It was working completely fine until the attempted CMOS clear, with the exception that I couldn't get SLI to work properly.

Mobo: ASRock z87 Extreme4
CPU: Intel 4770k
Graphics 1x or 2x MSI gtx 760
PSU: Corsair cx750m
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  1. Best answer
    Remove all components except CPU and RAM, reset CMOS again and try to boot.
  2. saint19 said:
    Remove all components except CPU and RAM, reset CMOS again and try to boot.


    This worked. I got power to the mobo. Should I plug everything back in, or one at a time in a specific order?
  3. Now you can connect all the other components again and boot, let me know if works.
  4. Is it possible that you left the jumper on the CLR_CMOS Header after you cleared it, and didnt remove it, as this breaks the mobo circuit and thats how the CMOS Is cleared, by cutting power to the chip, The PC Wont boot without a CMOS. Or atleast to my knowledge.
  5. Clear CMOS works with only a button in the board, few years back the jumper was removed for that same reason, a lot of people forget to changed it to the original position.
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