[Troubleshooting] Stuck in infinite reboot loop after reverting overclock settings

I had previously overclocked my i5 4670k on an Asus Z87-Pro board using ASUS AI Suite 3 up to 4.6 using the 4 way optimization settings, but I had been suffering blue screens once every week on average and decided to revert the settings back to default and attempt a lower overclock through the BIOS instead, but after doing so in the BIOS and rebooting, my PC will now turn on for 4 seconds, then shut down, and reboot. I can't keep the PC on long enough to see what error code pops up on the motherboard, and power barely has time to flicker my keyboard on, let alone reach a BIOS page.

Any help is appreciated. Thanks.