Will this damage my console? Horizon OC will not cause damage to your console unless you intentionally want to cause damage to your console Can this brick the eMMC? Like the other OC suites, while uncommon with CPU, doing an unstable RAM OC with low voltages can rarely but possibly cause NAND data corruption, so yes, you want to perform a EmuNAND backup prior to testing and only test in EmuNAND, once you're certain it's safe, it can then be used on SysCFW.