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PC won't boot after attempting to OC. Please Help.

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December 28, 2013 8:26:14 PM

OK guys I screw up I know.

On a whim today I decided I wanted to overclock my CPU(i5-3570k) so after reading a few tutorials I decided to take a shot at it. I opened my mobo's(asrock z75 pro) bios and increased my clock speed from 100mhz to 115mhz(150 max). After saving this my PC turned off and started to reboot but failed. All the fans on everything turn on but then fail a few seconds later or will do this until the PSU is unplugged or turned off. No picture on monitor also.
So any ideas on what happened? I tried starting with one stick of ram and that didn't help. What did I do wrong? Did I fry my CPU or MOBO? Is it too much for my PSU a Rosewill Stallion RD500-2B 500 watt to handle? Is there someway to get into the bios to bring that 115mz to 100 again? Please Help
Thank You.

PC specs
I5-3570k
Asrock z75 pro
Gigabyte gtx 660
2x 4gb gskill rip jaws
Rosewill RD500-2B

More about : boot attempting

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December 28, 2013 8:37:24 PM

There should be a jumper that you can move over to clear the bios settings you currently have. You could also unplug the computer, remove the CMOS battery and let the PC sit for 15-30 minutes. The put everything back together and try again.
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December 28, 2013 8:43:40 PM

Your bios is still set to overclock the cpu you need to go into it and reset it.
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December 28, 2013 8:58:52 PM

mjmacka said:
There should be a jumper that you can move over to clear the bios settings you currently have. You could also unplug the computer, remove the CMOS battery and let the PC sit for 15-30 minutes. The put everything back together and try again.


It worked!!! Thank You so much!!!
While on topic I still want to OC. So do I need to upgrade me mobo or PSU? Or both?

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December 28, 2013 9:34:11 PM

That motherboard should do the trick.

Go slow when overclocking. Part of over-clocking is learning the limits of your board and components.
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December 28, 2013 9:36:18 PM

OK thanks again. Will save up for the new board and take it slow.
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!